Seal katalog

mechanical seals

DEPAC Establishment Wirtschaftspark 44 FL-9492 Eschen Liechtenstein Telephone: +423 373 9700 Telefax: +423 373 9719 e-mail: office@depac-fl.com Internet: www.depac.at

DEPAC Mechanical Seals ...worlds finest

...world`s finest

DEPAC Warehouse BahnhofstraĂ&#x;e 9 AT-6824 Schlins Telephone: +423 373 9700 Telefax: +423 373 9719 e-mail: office@depac-fl.com Internet: www.depac.at

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GLOBAL SERVICE

CONTENTS

Page DEPAC is one of the industries most well known seal manufacturers with an ever increasing world-wide distribution network.

DEPAC LOCATIONS DEPAC Establishment Wirtschaftspark 44 FL-9492 Eschen Liechtenstein Telephone: +423 373 9700 Telefax: +423 373 9719 e-mail: office@depac-fl.com Internet: www.depac.at DEPAC Warehouse Bahnhofstraße 9 AT-6824 Schlins Telephone: +423 373 9700 Telefax: +423 373 9719 e-mail: office@depac-fl.com Internet: www.depac.at

Sales and service offices Germany ●●Bergisch-Gladbach ●●Hanover -Koblenz ●●Magdeburg ●●Central Hesse ●●Nuremberg ●●Chemnitz ●●Regensburg ●●Cologne ●●Ruhr Area ●●West Lower Rhine ●●Frankfurt ●●Freiburg-Reutlingen ●●Wolfsburg ●●Hamburg -Braunschweig -Schleswig-Holstein Sales and service offices Austria ●●Tirol ●●Burgenland ●●Carinthia ●●Upper Austria ●●Lower Austria ●●Vorarlberg ●●Salzburg ●●Vienna ●●Styria

2 4 6 8 10 12 14 16

Mechanical Seals and stationaries for pumps and compressors Stationaries Glands/Adapters Component mechanical seals Cartridge mechanical seals ANSI API

19 20 23 26 36 46 48

Mechanical seals for agitators, mixers, fermenters filters, reactors “Floating” design DIN Norm with modular system

51 52 54

Auxiliary Equipment Thermosyphon-System

57 58

Technical Data Installation Instructions Technical details Data sheets

61 62 64

DEPAC special seals Chemical and Pharmaceutical Industry Power Industry Oil Industry Paper, Steel, Food Processing Industry Mining

18 50 56 60 66

DEPAC Product range

67

Exklusive International Representation Europe ●●Belgium ●●Czechia ●●Denmark ●●Finland ●●Greece ●●Hungary ●●Island ●●Italia ●●Latvia ●●Lithuania ●●Netherlands ●●Norway ●●Poland ●●Slovakia ●●Spain ●●Sweden ●●Switzerland ●●UK Middle East ●●Egypt ●●Israel ●●UAE

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Important Information DEPAC Philosophy Principles of design ISO 3069/DIN 24960 ANSI/ASME B73.1 M...

Plan-Numbers for mechanical seals API 610/682 Mechanical seal and environmental control selection Pump Owners Choice

North America ●●Canada ●●USA Central and South America ●●Argentina ●●Chile ●●Mexiko ●●Peru Asia ●●China ●●Indonesia ●●Japan ●●Korea ●●Malaysia ●●Philippines ●●Singapore ●●Taiwan ●●Thailand

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DEPAC PHILOSOPHY

2 Transparency of the market?

Advantages for the Customer!

?

In the process industry, mechanical In this catalogue topics signiseals in pumps, compressors, reactors fied with a question mark require etc. represent a small but essential con- detailed analysis. tributor to the overall operating reliability and economic efficiency of every In our product range we not only offer piece of equipment. the most advanced and efficient seals, but also certain technically questionable In the complexity of production cycles, products due to market demand. Howinterruptions or shut downs of proever, we strongly feel other designs are duction caused by the replacement or better and more sensible and should be repair of single components such as a considered if not specified. mechanical seal can result in enormous expenses.

In this catalogue an exclamation mark shall signify alternatives, which It must be realized that the interests of you can rest assured, describe not only machine manufacturers are not always a technically superior design but also a the same as those of their custommore economical solution. ers. Manufacturers often choose components that are not the best for the Our market position as innovative speapplication. Reasons for this are purely cialists in the mechanical seal industry economic. The spare parts market for has always been to provide the highest the equipment is so lucrative it has cre- reliability, process safety, and the most ated whole industries dedicated to satis- economically sound choices through fying the “after-market” demand. market transparency. This will be evident throughout this catalog.

In this industry it is questionable if true competition exists, which in other DEPAC developments, such as the staindustries is the driving force for inno- tionary mechanical seal, introduced by vation and development of technically DEPAC in the early 1980’s, have even advanced products. How else can it be been adopted by the internationally respected American Petroleum Institute explained that current industry standards have not incorporated the latest (API) specifications. technical advances in seal design.

DEPAC’s wide range of mechanical seals will convince you, especially if all life cycle costs are calculated, to use them exclusively on a long term basis.

!

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OLD LIABILITIES ARE COSTLY LIABILITIES

3 More pressure, more wear!

unbalanced

Unless a mechanical seal is hydraulically balanced, the full force of the hydraulic pressure present in the process will act on the sealing surface. This is in addition to the necessary spring force, which is already designed into the seal. Therefore, an unbalanced seal will always have additional unnecessary load on the seal faces.

This additional face load increases friction, which results in heat and increased wear thus shortening the service life of the seal.

Pressure balancing minimizes your operating costs!

balanced

It has been a known fact in the market for years that the life expectancy of unbalanced mechanical seals is shorter than those versions that have hydraulic pressure balancing.

A number of industries, such as refineries, have specified years ago in API 610/682 that ALL mechanical seals should or must be pressure balanced.

Top Quality at the same price!

recommendation given by some seal manufacturers and suppliers because the parts required to make up a mechanical seal in balanced or unbalanced designs are basically identical.

The only difference is a small step in the seal face.

In the past it was common to recommend seals without hydraulic pressure balancing to the process industry, supposedly for reasons of economic efficiency. Statements like “with this pressure you don’t need expensive pres- From a manufacturing point of view, sure balancing� are well known to all this step has no effect on end users. It is difficult to follow this the manufacturing costs and

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therefore should not effect the sales price.

If a hydraulic pressure balanced seal has less wear and offers a longer service life for the same price, there should be no reason not to change to this technology. This change will result in reduced maintenance and operating costs.

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DYNAMIC DESIGN

4 Dynamic Design In a dynamic seal design the spring element is mounted in the dynamic (rotating) portion of the seal.

The following calculation will illustrate the resulting problems:

The various seal and related pump parts all have manufacturing and installation tolerances, e. g. the retaining ring, the spring(s), the face of the stuffing box, the shaft, the housing gasket and gland, and their positions in relation to the shaft axis.

If a pump operates at 3.000 rpm for 24 hours, the relevant seal components will do the following axial movements: 3.000 rpm x 2 axial movements per revolution x 60 min./hour x 24 hours/day = 8.640.000 axial movements per day

The summary of all these tolerances result in the fact that the stationary face of the seal is effectively not at a right angle to the pump shaft. This results in seal These enormous movements within the mechanical misalignment that cannot be avoided. seal parts result in tremendous vibrations reducing the service life of the seal considerably. These moveIn a dynamic design where the spring element rotates ments also groove the shaft-protecting sleeve through with the shaft, the rotating face that is set at an fretting, and also accelerate the weakening of the angle due to the previously mentioned tolerances spring(s), which results in the seal faces opening more needs to adjust twice per revolution to keep in contact frequently. All these problems contribute to premature with the stationary face. A back and forth movement seal failure. of the seal parts result.

Fretting corrosion of shafts or protective sleeves

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Dynamic seal designs, with O-Ring, PTFE wedge or similar secondary sealing elements, require shaft protection sleeves.

prevents the chromium from forming the protective oxide layer at all. Therefore, the stainless steel is subject to a continuous so-called fretting corrosion.

We need to remember that the dynamic secondary sealing element on the sleeve (O-Ring, wedge, V-Ring, etc.) has to move back and forth axially on the shaft twice per revolution in order to keep contact between the seal faces to ensure effective sealing.

Whatever the case may be, the result is the same.

Significant wear takes place resulting in a groove on the shaft or sleeve. The secondary seal will either develop a leak or get held up so that the seal faces open. Seal failure is inevitable.

The sleeve is usually made of stainless steel with approximately 16% chrome content. This chrome content along with oxygen from the air forms a protective passive chrome-oxide layer on the stainless steel surface. The extreme axial movement of the secondary seal, however, polishes this layer off. As a result, the underlying chromium, which is within the stainless steel, again comes in contact with the O2 of the air and forms a new chrome-oxide layer. This same process is obviously continually repeated. There is also the view that this extreme axial movement even

Please note that even if the seal is still in perfect working condition, the customer is now forced to take the pump or equipment apart in order to replace the sleeve. The seal itself is now only a small factor in the repair.

The disturbing fact is that the seal has had a destructive effect on a pump part (sleeve), which, in most cases, is more expensive than the seal itself!

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STATIONARY DESIGN

5 Stationary Design In a stationary design the spring element is placed in the stationary part of the mechanical seal.

Even for the stationary design, the previously mentioned tolerances of the relevant pump and seal components remain the same.

The success and reliability of this design principle was proven a long time ago in other equipment and industries. It has been in use for many years in automobiles, washing machines, aviation, ships, submarines, agitators, desulphurization plants, high-speed pumps, etc.

Stationary designed seals have been used in the preThe main difference is that the spring element compensates for the misalignment between the gland and viously mentioned applications for virtually no other stationary face only once during installation. reason than their reliable performance.

The shaft protective sleeve will no longer serve as a wear part when used with stationary seals, thus eliminating the need for replacement.

The result is that economic efficiency is improved and savings are realized by avoiding production shut downs, equipment repairs, and eliminating the need to purchase expensive sleeves.

With the use of a stationary mechanical seal design, such as DEPAC Type 191 or 196, there is no dynamic secondary seal on a shaft or sleeve and thus fretOf course the possibility exists, even with this design, ting corrosion no longer occurs. that the seal may “wobble� if working in a pump Existing sleeves can still be used, but now only as an with a bent shaft. Such a remaining but extremely small wobbling movement is negligible and in nearly anti-corrosion device for steel shafts and/or whenever all cases is compensated for by the elastomer (O-ring) a pump has been designed in such a way that the sleeve also serves as a positioning part for the impeller. mounted within the seal.

After this one-time adjustment, the seal stands still and runs without additional axial movements.

This contrasts sharply with the dynamic design, in which 2 axial movements per shaft rotation must occur to keep the seal faces together.

Therefore, it is understandable that mechanical seals with a stationary design are more reliable than those seals with a dynamic design.

DEPAC TYPE 196

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6 ISO

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION

Excerpts from DIN 24960

DIN

GERMAN INSTITUTE FOR STANDARDS

DIN 24960

In connection with the INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) and their standards ISO 3069, the GERMAN institute for STANDARDS issued standard proposals, under DIN 24960, for mechanical seals.

These proposals refer to the stuffing box, main dimensions, specifications and codes of materials.

The actual design of the seals is not specified.

Single Seal Form U unbalanced

Single Seal Form B balanced

These standards, however, do not represent today’s technological design knowledge in any way.

Therefore the selection of seals, according to DIN/ISO, sometimes proceeds according to outdated data, which often leads to early failure of seals and disruption of production.

Double Seal ”BACK TO BACK” Form U unbalanced

The result for the operator is considerably more maintenance work than necessary and naturally costs which could have been avoided.

For this reason we show, in comparison to DIN, some important criteria which should be considered when selecting mechanical seals to reduce down times and operating costs dramatically.

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Double Seal ”BACK TO BACK” Form B balanced

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ISO 3069/DIN 24960

7 DIN 24960

DEPAC is one step ahead

Mechanical seals are still being specified, manufactured and installed according to the pressure “balanced” and “unbalanced” principle.

To reach an optimal service life, only balanced seals should be used, whenever possible. Balanced seals are not more complicated or expensive to produce and should therefore be available at the same price as unbalanced seals of the same series (DEPAC Type 186, 196).

The use of balanced seals is exclusively referred to with the inclusion of a step on the sleeve or shaft. Due to these specifications actually a second sleeve for balanced seals are essential. These special sleeves are, however, unnecessary.

Balancing can also be achieved by using a stationary design, which does not necessitate a stepped sleeve and/or recess on the shaft or sleeve (DEPAC Type 196).

Dynamic designs are still recommended and are even used as a basis for measurement specifications of stuffing box dimensions.

Stationary seals should always be given priority. The production prices, in most cases, correspond with those of dynamic seals, however, stationary seals offer higher operating reliability (DEPAC Type 196). These seals also fit into those spaces designed for dynamic seals.

DIN specifications still show mechanical seals where the springs are located in the pumped media.

Springs within a slurry media can clog and cause premature failure of the seals.

To prevent this, whenever technically possible, we recommend that the spring parts are always arranged outside the pumped media (DEPAC Type 186, 196).

The standard does not mention that many dynamic seals damage the shafts/ sleeves which have to be replaced at high cost. Due to this oversight, the number of sleeve manufacturers has flourished at the expense of the customer.

DEPAC recommends that all seals be chosen in such a way that shafts or protective sleeves cannot be damaged. The price differences for such seals will be negligible, but the savings of shafts or sleeves will be enormous (DEPAC Type 186, 196).

Seals made of several components are still recommended.

Wherever possible, for ease of installation and reduction of installation failures, cartridge designs should be used. The higher price will only be noticed for the initial installation. The following repairs and spare part prices will correspond with component seals.

DIN 24960 shows double seals with the absolutely outdated “Back to Back” design.

To reach optimal operating reliability of double seals it is advisable to choose tandem active stationary cartridge seal designs with double pressure balancing (DEPAC Type 321 series).

The broadening of DIN to DIN 24960 C (cartridge) was drawn up in a most complicated and tedious way.

Seen from an economic point of view the DIN specification has made the production of cartridge seals problematic and therefore uneconomical. DEPAC proves that cartridge seals can be designed at the utmost up-to-date technology and manufactured economically to provide customers with the highest quality at affordable prices (DEPAC Type 321).

According to the norm, the same or similar narrow stuffing boxes are provided for mechanical seals as for mechanical packing.

For the best seal performances the seal chamber should be substantially larger.

The API 610 / 682 specifications as well as the new ANSI standards have considered this for some time and are therefore today’s trend setters in regards to technical specifications for mechanical seals.

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8 ANSI

AMERICAN NATIONAL STANDARD INSTITUTE

ASME

AMERICAN SOCIETY OF MECHANICAL ENGINEERS 1962 the first attempt to standardize pumps for the chemical process industry was made.

ASME B73.1 M – 1991 HORIZONTAL END SUCTION CENTRIFUGAL PUMPS FOR CHEMICAL PROCESS INDUSTRIES Naturally, in these specifications the seal parameters are taken into account.

These efforts were summarized by the American Voluntary Standards (AVS).

Especially positive: ASME B73.1 M – 1991 clearly distinguishes between the installation of packings and of mechanical seals.

1968 AVS was revised and confirmed as ANSI.

The stuffing box dimensions for packings conform with traditional measurements (see fig. 1).

1991 ASME B73.1 M – 1991 was introduced as a revision, which will now be analyzed.

According to seal requirements, the spaces for installations have grown in size. Sometimes even conical spaces are suggested (see fig. 2 + 3).

This development of industrial standards or recommendations are welcome since they can improve the service life of mechanical seals.

Please note: Not all pump manufacturers follow these “Standards”. In fact most manufacturers, especially the larger ones, do not apply the larger seal chambers when supplying mechanical seals.

Not every detail of the recommended seal specifications listed in the “Standards” is technically up to date (unbalanced / balanced etc.).

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STUFFING BOX for the installation of packings

Fig. 1 Converting packed pumps to seals There are still many old pumps in operAA – AB x = 7.94 mm (5/16 inch) ation not manufactured in accordance A05 – A80 x = 9.52 mm (3/8 inch) with these latest recommendations.

A90 – A120 x = 11.11 mm (7/16 inch) Even the large pump manufacturers still supply seals with stuffing boxes designed for packings.

Designation Radial Clearance

x Minimum

There are also many pumps operating ­with packings as sealing elements, which the operators would like to convert to seals.

Therefore, please take into consideration that seals produced for a seal chamber with a cross section of 19.05 mm (3/4”) can certainly not be used in stuffing boxes with a cross section of 7.94 mm (5/16”) or visa versa. While choosing a mechanical seal, please compare the equipment data accordingly.

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ANSI/ASME B73.1 M .....

A STEP IN THE RIGHT DIRECTION!

9 SEAL CHAMBER for mechanical seal installations Cylindrical Chamber

Environmental controls, PLAN numbers Environmental controls are referred to in the ANSI Standard as PLAN numbers.

The ANSI/ASME standards list a series of PLAN numbers which are essential for seal applications and performance.

The use of one or more PLAN number can often extend the service life of mechanical seals drastically. For a specific seal application the consideration of various PLAN numbers might be necessary. (Details see page 10, 11).

Applications The industry requests service life improvements of seals to avoid costly maintenance work and shut downs.

However, often the same industry is not willing to choose the proper seal design and necessary PLAN numbers so that a longer service life can actually be achieved. It would be desirable if this attitude would change.

Fig. 2

Conical Chamber

DEPAC offers more!

With the high technological standard of DEPAC seal designs, especially with the stationary sealing principle, the requirements of the standards are more than satisfied.

DEPAC offers many advantages which exceed the standards. These features increase reliability and economic efficiency of mechanical seals considerably.

DEPAC Type 301 ANSI

Fig. 3 Designation Radial Clearance x Minimum AA – AB A05 – A80 A90 – A120

x = 19.05 mm (3/4”) x = 22.22 mm (7/8”) x = 25.40 mm (1.0”)

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10 PLAN numbers for mechanical seals

ASME and API recommendations contain a wide range of applications and PLAN numbers. With the use of DEPAC’s high technology and high quality standard of seals, a lot of PLAN numbers are either obsolete or irrelevant. Therefore, only the most important ones are listed here.

ANSI PLAN-No. 7311

API No. 1, 11

RECIRCULATION FLUSHING Recirculation flushing is only recommended for applications where pumping is performed in the vicinity of the liquid’s boiling point.

The danger here is that the additional frictional heat causes the medium to evaporate between the seal faces, causing the seal to run dry and subsequently fail. With this plan system the pressure in the seal chamber will be increased. The danger that the volatile medium evaporates is drastically reduced.

API No. 32

FLUSHING FROM AN ALTERNATIVE SOURCE Flushing from an alternative source should, if at all possible, be used to keep a problematic pumped medium (e. g. abrasive solids) out off the seal chamber. The flush medium, which replaces the pumped medium in the seal chamber, should be a cool, clean and lubricating liquid, which is compatible with the pumped medium.

Recirculation Flushing

ANSI PLAN-No. 7332

Flushing from an alternative source

Customers can of course use DEPAC seals also with other PLAN No.’s. For an overall evaluation of all PLAN No.’s, which will help to increase the service life of mechanical seals, we refer to ASME and API recommendations.

The flush should never be introduced perpendicular to the shaft axle, but always in a tangential or axial manner. A base ring should be used as a throttle bush in the seal chamber and the recirculation line should be cooled.

the shaft. It should also be introduced at a higher pressure (1 to 2 bar/15 to 30 PSI) than the pump pressure in the stuffing box or seal chamber.

Depending on the seal size, the flow of the flush can be reduced to 3 and 10 l/hr (1 to 3 Gall./hr) when using a DEPAC seal. A base bushing and a flow meter will help reach and control the amount of The flush should always be introduced tangentially flush needed. or axially to the shaft, but never perpendicular to

ANSI PLAN-No. 7362

API No. 62

Quench (in general we only recommend steam or gas)

QUENCH For crystallizing media, DEPAC usually recommends a quench of low pressure steam. In rare applications involving low temperatures at the seal faces, dry air or nitrogen can also be applied as a quench to prevent icing.

Steam is applied to the atmospheric side of the seal to keep all dynamic parts of the seal moist and warm. This prevents crystals from forming, and those crystals already developed are either dissolved or are removed by the steam from the seal faces. Hard faces should be used in all of these applications. Due

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to the gluing effect of some crystals, Silicon Carbide is often not suitable. With the possible sticking effect of the crystals, Silicon Carbide faces can break at the retainer pins when starting the pump. Tungsten Corbide would be recommended for those applications.

It should be confirmed that steam is compatible with the pumped medium and does not cause unwanted chemical reactions. Additional quench sealing devices can be applied to the atmosphere if needed.

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PLAN-NUMBERS FOR MECHANICAL SEALS

ANSI/ASME B73.1 M ..... API 610/682

11

DOUBLE SEALS with barrier fluid In special cases where the medium is not allowed, under any circumstances, to come in contact with the atmosphere, it is necessary that the barrier liquid pressure be higher than that in the stuffing box or seal chamber. A pressure of 1 to 2 bar (15 to 30 PSI) more than the seal chamber pressure of the pump/equipment is in most cases sufficient.

ANSI PLAN-No. 7352 Barrier fluid for double seals

Therefore, it is recommended that all seals are double pressure balanced. This assures not only optimal process safety but also the most reliable service life.

In any case, only seal designs should be used where the seal faces remain closed, even if the barrier pressure should fail due to process or plant related reasons.

ANSI PLAN-No. 7354

API No. 52, 54

Barrier fluid for double seals with Thermosyphon-System filling inspection glass

reservoir

DOUBLE SEALS with ThermosyphonSystem When using double seals it is necessary to have a barrier fluid between the two seals in order to lubricate and cool the outer seal. This effect can be accomplished by using a Thermosyphon system.

To ensure good circulation of the barrier fluid, a separate circulating pump (DEPAC TS 50) should be used to assist with the thermosyphon circulation (DEPAC Type 322/323).

It is recommended to keep the barrier fluid at a higher pressure than that of the seal chamber (1 to 2 bar/15 to 30 PSI).

if specified drainage

ANSI PLAN-No. C Heating/Cooling with cooling chamber

HEATING/COOLING Heating or cooling with a jacket is used when the medium in the seal chamber has to be heated or cooled in order to achieve the best possible service life of the seal through temperature control.

The heating or cooling jacket should be checked on a regular basis to prevent internal calcium deposits from forming.

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These deposits act as insulation and reduce or prevent the heating or cooling effect.

It is important that, when using this system, a throttle bushing is mounted in the seal chamber to increase the heating or cooling effect at the seal.

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12 API “American Petroleum Institute” API is a part of ANSI “American National Standard Institute”. API describes, outlines and recommends various fundamental criteria of pumps for the petroleum industry. In general, these standard pro­posals are, at this time, the best for design features and application requirements of mechanical seals. Even though they are intended for the petroleum industry, they are also most suitable and applicable in all other industries.

In particular, API indicates that the costs of leakage, sleeve wear, down time and length of service life of equipment using mechanical seals should be taken into account considerably more than the purchase price of a seal.

This file of standard suggestions contains over 120 pages. Therefore, it is understandable that only some of the many details can be mentioned here.

A few important details that are recommended and applicable also to general industries are as follows: ●●Large sealing chambers ●●Preference for stationary seal designs ●●Tandem active double seals ●●Pressure balance ●●Preference for cartridges ●●Slotted glands

It is pointed out that these extensive API proposals ●●Additional safety seals are not necessarily binding for the customer, but can be used as modern basis for purchasing seals. There- ●●Springs and bellows of Hastelloy C material fore, no supplier is excluded even if the API criterion is not met. The authors of API thought it important that ●●SiSiC reaction bounded silicon carbide while purchasing or selecting seals, up to date knowl(DEPAC SC) as standard and SSIC sinedge and technology should be considered to the tered silicon carbide (DEPAC SSIC) for advantage of the user. special use only ●●Tungsten carbide with nickel binder (DEPAC TC) ●●To seal media containing solids the face combination SiSiC (DEPAC SC) versus tungsten carbide (DEPAC TC) should be preferred Out of the few above mentioned recommendations, it is obvious that DEPAC’s first developments of stationary seals, that DEPAC brought to the market in the early 80’s, were at that time very far advanced.

Today the internationally respected API specifications still recommend DEPAC’S long standing design philosophy as industry standards.

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API 610/682

13 Basic Design criteria with recommendation of connections SINGLE-STATIONARY

DOUBLE-TANDEM

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BI – Barrier fluid IN

1/2“ NPT

BO – Barrier fluid OUT

1/2“ NPT

D – Drain

3/8“ NPT

F – Flush

1/2“ NPT

Q – Quench

3/8“ NPT

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14 THE PROBLEM There is seemingly an endless list of chemicals and media, which have to be sealed. A typical question the customer asks the seal manufacturer is: “What or which seal is recommended for the product “XYZ”?

Therefore, the question is not which liquid needs 1) Mediums containing solids to be sealed, but rather what characteristics If a medium contains solids but is otherwise chemical does the liquid have and how do they affect neutral, cool and lubricating, then it is irrelevant what the seal? the name of the medium or the solids are. What is crucial is that the solids may penetrate the seal faces and The ideal liquid will not affect the performance of the subsequently destroy them. seal in a negative way. It should be cool, clean and

lubricating. Under these conditions, any stationary seal a) FLUSHING PLAN No. 7332 with can achieve a reliable and good service life. Unfortunately, base bushing Despite other criteria, it is a basic requirement to keep there are only a few “ideal” media. Therefore, it must No seal manufacturer can possibly know all media the solids away from the seal. and medium variations. Nevertheless, many seal man- be considered how the various characteristics of liquids will have a negative effect on the seal. Then the decision ufacturers want to impress customers and publish An external flushing with PLAN number 7332 in long lists of chemicals with corresponding seal recom- can be made how to feasibly avoid difficulties at the combination with a base bushing should be seal, change the characteristics of the liquids, or at least mendations. used. For face materials, wear resistant materials (e. minimize the effects on the seal significantly. g. silicon carbide/tungsten carbide) should be selected.

This, however, is completely irrelevant and even dan- PLAN numbers If, despite the small amount of barrier fluid required (3 to 10 ltr./hr., 1 to 3 Gall./hr.), none is available gerous to the end-user, since a 10 % change in conor prohibited in the process, then only a double seal To achieve these objectives the following help in form centration or a temperature difference of 10 °C can can be used. of environmental controls, “PLAN numbers”, (see also produce a completely new behavioral pattern of the b) DOUBLE SEAL PLAN No. 7352/7354 pages 10 and 11) are readily available: media, which in turn can have an adverse effect on Tandem active double pressure balancing and higher the performance of the seal.

PLAN numbers

It must also be recognized that there are innumerable blending possibilities or additives, which can result in a dramatic change in the behavioral pattern of the basic chemical.

How can a seal manufacturer possibly give a general recommendation to the end user without knowing all the individual criteria of the liquid to be sealed as well as the pumping process and procedures?

ANSI

API

Recirculating flushing No. 7311 No. 11 External flushing

No. 7332 No. 32

Quench

No. 7362 No. 62

Double seal with barrier fluid

No. 7352

Double seal with thermosyphon-system No. 7354 No. 52, 54 Heating/cooling

No. C

This is practically impossible!

barrier fluid pressure should be specified. c) If case a) and b) are not possible then a single seal with hard faces is the last alternative. If so, then one must accept a shorter and uncontrollable service life.

2) Crystallizing medium

With crystallizing media it is also irrelevant what the name of the fluid is, it is important only why or how it crystallizes.

Fluids can crystallize, for example, if they come in contact with the atmosphere or when the temperature changes.

If this happens, crystals will develop at the atmospheric side of the seal faces. At this point the crystals build up and push the faces apart, causing the seal to fail.

How can the end user be helped in making his own selection of the proper seal or materials?

Liquids/Mediums To make the selection procedure simple, only 9 different media characteristics or equipment criteria have to The most important principle for crystallizing media is that for all sealing faces in contact with the medium, hard and be considered:

THE SOLUTION

1) Solids

First, due to its reliability, a stationary mechanical seal should be chosen. Then the right materials and PLAN numbers are to be selected which enable the seal to survive in the medium and reach the proper service life.

DEPAC takes a new direction to simplify the additional selection process and this is that the criteria should be evaluated according to the general behavior of the various liquids.

DEPAC_Katalog_engl.indd 14

2) Crystallizing 3) Sticking/hardening 4) Vaporizing/gaseous 5) Extreme temperatures 6) Dangerous/hazardous 7) High pressures 8) Aggressive chemicals 9) Special conditions of the machinery

durable materials such as Tungsten Carbide and Silicon carbide must to be used. Brittle materials, e. g. silicon carbide, should however, despite their hardness, be avoided if the crystals have also some bonding or sticking effect.

To avoid the opening of the faces due to the formation of crystals, one of the following possibilities can be selected. a) FLUSHING PLAN No. 7332 with base bushing In this case the crystallizing liquid in the seal chamber is replaced by a non crystallizing liquid flush (3 to 10 Ltr/hr., 1 to 3 Gall./hr.).

17.11.2010 11:22:58 Uhr

SELECTION OF MECHANICAL SEALS AND ENVIRONMENTAL CONTROLS

15 b) QUENCH (steam) PLAN No. 7362 A warm and moist atmosphere is introduced to the outside of the seal face by the use of low-pressure steam. This will prevent the formation of crystals, or in the case of already formed crystals the steam will flush them away. c) DOUBLE SEAL PLAN No. 7352, 7354 If a) and b) are not possible or allowed, the possibility of using a double seal should be evaluated. d) Are a) to c) not feasible, again only a single seal can be used with hard faces. No optimal or predictable service life, however, can be achieved.

3) Sticking/Hardening fluids

If there are other reasons for sticking and hardening, the PLAN numbers have to be assessed and chosen accordingly.

4) Evaporating or gaseous media

The temperature has to be lowered or a cool, lubricating and clean liquid applied to the seal. The alternatives are:

For this application either a specially designed seal must be offered, or one considers the use of a DOUBLE SEAL to achieve a step by step reduction of the pressure from the seal chamber to the atmosphere (PLAN No. 7352 or 7354).

a) FLUSHING PLAN No. 7322 with base bushing b) HEATING/COOLING PLAN No. C c) DOUBLE SEAL PLAN No. 7352/7354

8) Extremely aggressive chemicals

5) Media at extreme temperatures

9) Special machinery

The alternatives are repeated:

The name of the medium is again irrelevant, what is important however, is how and why sticking and hardening a) FLUSHING PLAN No. 7322 with base bushing of the medium takes place. b) DOUBLE SEAL PLAN No. 7352/7354 If a medium hardens due to contact with the atmosphere c) SPECIAL SEALS or when the temperature changes, one has to make Special seals can be developed and offered by the sure that the seal does not come in contact with the seal manufacturer after discussing all relevant or atmosphere or a certain temperature is kept. required details with the customer.

In all cases, seal materials, especially those of the secondary To achieve this, there are the following possibilities: seals eg. O-Rings, must be chosen according to the a) FLUSHING PLAN No. 7332 with operational temperature, which includes the frictional heat. base bushing Also in this case this plan number can be applied, 6) Hazardous Media which is always the ideal choice for the seal.

The operator should always know the level of danger b) DOUBLE SEAL PLAN No. 7352/7354 involved with a medium pumped. There are general The barrier fluid used for the double mechanical seal directives, statutory orders and by-laws that must be should be at a higher pressure than the medium followed to determine what is hazardous, for example in pressure in the seal chamber. The barrier fluid separates the atmosphere from the inner seal, which is Germany the “TEA-Luft“. In those cases the customer or in contact with the pumped medium. The temperature OEM has to consider which logical and statutory directives are suitable to ensure maximum protection of man, animal of the barrier fluid can also be controlled if needed. and environment. c) HEATING/COOLING PLAN No. C, Quench PLAN No. 7362 The consideration always has to focus on ensuring that no If for example, temperature changes cause the medium hazardous medium can get into the environment. to stick or harden, one has to make sure that the It is possible to avoid the use of a seal completely by temperature at the seal is controlled in such a way using an electro-magnetic pump. However, this has its that sticking and hardening becomes impossible. disadvantages. Electro-magnetic pumps have very high Here PLAN No. C is recommended. power consumption and cannot be used in every media.

They are also not available in all sizes.

In any case, tungsten carbide faces have to be used.

If mechanical seals are to be used, a DOUBLE SEAL This is because residue of the sticky medium between the with PLAN No. 7352 or 7354 must be applied. seal faces bond the faces together. Brittle materials such as silicon carbide do not resist the torsion stresses and often crack at the retainer pins, especially with repeated start-ups of the pump or equipment.

DEPAC_Katalog_engl.indd 15

7) Media with extreme pressure

First of all it is important to choose materials that are resistant to the specific medium. Otherwise the selection of Plan No. follow the above described criteria.

For machines with either high shaft speeds, large shaft diameters or large shaft movements the seals should be selected accordingly (e. g. DEPAC Type 325/365).

When conditions are too extreme and standard seals are not sufficient, then special seal designs become necessary.

All media to be sealed by mechanical seals fall into one of the above described criteria or a combination of them. In case there is a combination, each criteria has to be considered separately. The result is not only the correct mechanical seal but also the required environmental controls.

17.11.2010 11:22:58 Uhr

MECHANICAL SEAL SELECTION TODAY

16

WHERE’S YOUR BENEFIT?

Looking at the traditional way mechanical seals are selected for any given pump, you’ll find that often other interests are in the foreground than the best possible benefit for you as the pump owner and operator. Is that the way it should be?

PLANNING OR CONSTRUCTION OFFICES – often simply specify mechanical seals as “slide seals” – without any detailed knowledge regarding construction features or their effects. Naturally, this knowledge is missing in the specifications.

THE ORIGINAL EQUIPMENT MANUFACTURER – has only one requirement: “The mechanical seal must seal”. Since any mechanical seal will do that, the manufacturer will select the least expensive version, possibly one enhancing his spare part business in shaft protection hulls. The shortest standing time will suffice, since manufacturers usually withhold any guarantee – after all, they say, mechanical seals are a service product.

THE PUMP OWNER AND OPERATOR – and his maintenance department usually have very little influence in this process. They tend to regard mechanical seals like other replacement product: Worn out units are replaced with the same type – the one specified by the equipment manufacturer.

Which is exactly the strategy that allows equipment manufacturers to boost their spare parts business.

It is also why many pump operators never acquire important knowledge about mechanical seal components, how the various constructions work and what this means for the operating costs.

CONSEQUENTIAL DAMAGES Pump operators of all sizes in all industries permanently suffer from reduced efficiency and company profit, owing to unnecessary short standing times and high wear on shaft protection hulls.

Do you want equipment manufacturers to determine the extent of those damages? Probably not. In many companies, mechanical seal know-how has become quite dated. This creates unnecessary staff and service costs. It’s in the direct interest of every pump owner to put a stop to that system.

WHY IS IT that package seals are still used for aggregates with rotating shafts, which creates substantial consequential damages and defies economic efficiency?

WHY IS IT that dynamic mechanical seals (not even pressure-balanced) are still employed, even though they cannot reach optimum standing times and also damage the shaft protection hulls?

STORAGE COSTS All equipment manufacturers have their own preferences regarding seal brands, or else use seals of their own make. But the more pump types are in operation, the more seals of varying makes and types, constructions, material or surface mating variants are required as replacement parts and fill up storage facilities.

Storage volume, costs, logistics and staff resources are consumed beyond acceptable terms. And every new pump project tends to add more types.

WHY IS IT that, up to this point, all kinds of mechanical seals fill up storage facilities in so many companies, un­necessarily freezing company resources and capital?

It’s a known fact that 80 % of all repairs on pumps follow from seal failure or worn protection hulls – almost in every case a consequence of the employed mechanical seal construction and material features, clearly to see when removed. Most companies also agree that a multitude of different mechanical seal types not only prevent company capital from working but also lead to insecurities and mistakes in their selection and application.

WHO PAYS THE PRICE? THE PLANT AND SYSTEM OPERATOR!

DEPAC_Katalog_engl.indd 16

17.11.2010 11:23:00 Uhr

THE DEPAC SOLUTION: “PUMP OWNERS CHOICE”

DEPAC HAS THE ANSWER In order to replace the efficiency-blocking standard way of selecting mechanical seals with an optimized system that will benefit the pump owner and operator, DEPAC has developed an entirely new concept called „POC Technology“.

FOLLOWING EXTENSIVE MARKET RESEARCH DEPAC has come to the following result:

An economically useful standardisa­ tion of mechanical seal types by 95 % could in nearly all analyzed companies be implemented with only 2 types of mechanical seals, DEPAC 270 and 322.

Using this result, DEPAC has deve­l­ oped the POC program for interested pump operators.

17

THE POC PROGRAM

offers an economical standardisation option combined with most advanced seal technology for maximum standing times and operation quality.

The following benefits should be carefully considered: ●●Only 2 types of mechanical seals, offering maximum standing times thanks to state-of-the-art seal engineering ●●No wear and tear on hulls anymore, whether with packages or with mechanical seals. ●●Expensive spare parts and storage facility requirements are a thing of the past. ●●A multitude of stored mechanical seals can be liquidated and disposed of.

POC stands for „Pump Owners Choice“.

This name means to make clear that a pump operator, had he the relevant background knowledge of seal technology, would employ other criteria than those important to the equipment manufacturer when choosing mechanical seals.

●●Most simple refurbishing process thanks to cartridge mounting, even when converting packages to mechanical seals. ●●Drastic reductions in storage costs and frozen capital. ●●Mounting mistakes with mechanical seals are prevented. ●●More productivity, efficiency and economy of maintenance

DEPAC TYPE 270

DEPAC_Katalog_engl.indd 17

DEPAC TYPE 322

17.11.2010 11:23:01 Uhr

CHEMICAL PROCESSING INDUSTRY

18 DEPAC SPECIAL SEALS for chemical/ pharmaceutical industries In these industries, a large range of sealing problems exists, which demand specially designed mechanical seals.

For most applications DEPAC offers a standard seal. The remaining applications are individually engineered to provide a custom made solution. This guarantees a high degree of operating and processing reliability.

For this special application a triple seal had to be designed.

The DEPAC solution Mechanical Seal Type 320-S-50

This seal has three sets of sealing faces. The first set of faces serves to seal the barrier fluid from the atmosphere. The second set seals the barrier fluid from the gas and the third set The following is an example of a special seals the gas from the medium in the equipment. custom made solution: Application The gas is blown between seal sets No. 2 and No. 3 at high pressure and A special machine has to be sealed where pressurized gas is blown through then enters the process through holes in the seal sleeve and through the hola hollow shaft into the product for low shaft. atomization.

The problem

DEPAC_Katalog_engl.indd 18

17.11.2010 11:23:04 Uhr

MECHANICAL SEALS AND STATIONARIES FOR PUMPS AND COMPRESSORS

19 Type

Page

Stationary faces

DS1 to DS10

20 – 22

Glands/adapters

450, 451, 500, 501, 510, 520, 480, 490

23 – 25

Dynamic, unbalanced

159, 159 A, 161

26 – 27

Dynamic, unbalanced rubber bellows

170, 170 A, 175 A, B, C, D

28 – 29 30 – 31

Dynamic, balanced

140, 159 B, C 186, 200

32 – 33

Stationary, balanced

191, 196, 201, 211

34 – 35

Single, economy

270, 279, 296

36 – 37

Single, gland with flush and quench connections

301, 309, 311

38 – 39

Single with safety seals – gland with flush and quench connections

270 P, 301 P 309 P

40 – 41

Double, with double pressure balancing

321, 322, 323

42 – 43

Split mechanical seals

390

44 – 45

Double, with double pressure balancing – “floating design“

326, 365

52 – 53

Mechanical Seals for agitators

370, 371, 372, 373

54 – 55

301 270 ANSI, 301 ANSI 323 ANSI

46 – 47

380 385

48 – 49

Component seals

Cartridges

ANSI/ASME B73.1 M... Cartridges API 610/682 Cartridges Single Double

DEPAC_Katalog_engl.indd 19

17.11.2010 11:23:04 Uhr

20 DEPAC Stationary parts – Extremely versatile!

A mechanical seal consists of several components such as the rotating part, the stationary part and the gland. The replacement market offers, besides the actual seals, a variety of glands in different designs and measurements for the equipment in use.

parts, DEPAC offers a large range of stationaries. The selection of an optimal mechanical seal asks for a corresponding selection of the right stationary.

After the selection of the optimal stationary, it is then possible to select a new gland or adapter, which are listed Taking this into account and to offer the on page 23 to 25. customer an alternative to his existing

DIN 24960 Designation

DEPAC Designation

Description

DIN-face materials position 1/2 B/C

CA

Carbon

Carbon – graphite, resin impregnated

S

CR

Chrome

Chrome casting

U2

TC

Tungsten carbide

Tungsten carbide with Ni binder

Q1

SSIC

Silicon carbide

SSIC, sintered, no free SI

Q2

SC

Silicon carbide

SISIC, reaction bonded

V

CE

Ceramic

AL oxide ceramic

Y1

GFT

Glass filled Teflon

PTFE glass fiber reinforced

Z

TFC

Teflon filled ceramic

PTFE ceramic composite

DIN-Secondary seals – Position 3 P

NBR

Nitrile elastomer

E

EPDM

Ethylene propylene elastomer

V

FPM

Fluorocarbon elastomer

T

PTFE

PTFE, solid

M

FEP encapsulated FPM

FEP encapsulated FPM

K

KALREZ * / CHEMRAZ **

Perfluoro elastomer

*TM DuPont / ** TM Greene Tweed

Stationary parts – Materials DIN 24960

V

Q1

Q2

U2

B

S

DEPAC

CE

SSIC SC

TC

CA

CR

DS1

l

l

l

l

l

l

DS2 DS3

l

DS4

l

DS6

l

DS7

l

l l

l

l

DS8

DEPAC_Katalog_engl.indd 20

l standard special parts

l

DS9

l

l

DS10

l

l

l

l

special parts or material upon request

17.11.2010 11:23:05 Uhr

STATIONARIES DIN 24960

21 DS 1

DS 2

DIN 24960 with slot for anti-rotation pin

DS 4

DIN 24960 cup mounted

DIN 24960 without slot

MM/INCH DS

DS 3

PLEASE NOTE For the evaluation of specified installation lengths, for example L1KU of the DIN 24960, the linear measurement of the chosen mechanical seal should be added to the relevant length of the selected stationary part.

The stationaries will be supplied with the O-Ring or cup. Standard O-Ring materials are EPDM or FPM and standard cup elastomer is NBR. According to the table, mm parts can be used for indicated inch seals.

Other measurements can be supplied upon request.

DEPAC_Katalog_engl.indd 21

DIN 24960 without slot

10 12 14 16 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

3/8 1/2 5/8 3/4 7/8 15/16

1 1/4 1 3/8 1 1/2

1 3/4 1 7/8

2 1/8 2 3/8 2 3/4 3 3 3 3

1/8 3/8 1/2 3/4 4

D6

D7

D8

D9

L8

L9

L10

L20

17.0 19.0 21.0 23.0 27.0 29.0 31.0 33.0 34.0 37.0 39.0 42.0 42.0 44.0 49.0 51.0 54.0 56.0 59.0 62.0 65.0 67.0 72.0 77.0 83.0 88.0 95.0 100.0 105.0 110.0 115.0

21.0 23.0 25.0 27.0 33.0 35.0 37.0 39.0 40.0 43.0 45.0 48.0 48.0 50.0 56.0 58.0 61.0 63.0 66.0 70.0 73.0 75.0 80.0 85.0 92.0 97.0 105.0 110.0 115.0 120.0 125.0

11.0 13.0 15.0 17.0 19.0 21.0 23.0 25.0 26.0 29.0 31.0 33.0 34.0 36.0 39.0 41.0 44.0 46.0 49.0 51.0 54.0 56.0 61.0 66.0 71.0 77.0 82.0 87.0 92.0 97.0 104.0

15.5 17.5 19.5 21.5 24.0 26.0 28.0 30.0 31.0 34.0 36.0 38.0 39.0 41.0 44.0 46.0 49.0 52.0 55.0 57.0 60.0 62.0 67.0 72.0 77.0 84.0 89.0 94.0 99.0 104.0 111.0

7.8 7.8 7.8 7.8 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 11.7 11.7 11.7 11.7 11.7 13.7 13.7 13.7 13.7 13.7 15.6 15.6 16.3 16.3 16.3 16.3 16.3

15.0 15.0 15.0 15.0 17.0 17.0 17.0 17.0 17.0 17.0 17.0 17.0 17.0 17.0 19.0 19.0 19.0 19.0 19.0 21.0 21.0 21.0 21.0 21.0 23.0 23.0 23.5 23.5 23.5 23.5 23.5

10.0 10.0 10.0 10.0 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 12.0 12.0 12.0 12.0 12.0 13.5 13.5 13.5 13.5 13.5 15.0 15.0 17.0 17.0 17.0 17.0 17.0

6.6 6.6 6.6 6.6 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 9.0 9.0 9.0 9.0 9.0 9.5 11.0 11.0 11.0 11.0 11.3 11.3 12.0 14.0 14.0 14.0 14.0

17.11.2010 11:23:09 Uhr

Stationaries

22 DS 6

DS 8

DS 7

DS 9

DS 10

MM DS

INCH L17

L18

10 – 65 10.0 16.0 70 – 100 19.0 25.0

MM

DS

L17

L18

1 – 2 3/8 0.394 0.630 2 3/4 – 4 0.748 0.984

INCH

DS

D10

D11

D13

D14

D15

L13

L14

L16

L19

DS

D10

D11

10 12 14 16 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

15.5 17.5 20.5 22.0 24.0 29.5 29.5 32.0 32.0 36.0 39.2 42.2 44.2 46.2 49.2 52.2 53.3 55.3 59.7 60.8 63.8 66.5 71.5 76.5 83.0 90.2 95.2 100.2 105.2 111.6 114.5

19.2 21.6 24.6 28.0 30.0 35.0 35.0 38.0 38.0 42.0 45.0 48.0 50.0 52.0 55.0 58.0 62.0 64.0 68.4 69.3 72.3 75.4 80.4 85.4 92.0 99.0 104.0 109.0 114.0 120.3 123.3

24.60 27.80 30.95 30.95 34.15 35.70 37.30 40.50 40.50 47.65 50.80 50.80 54.00 54.00 57.15 60.35 63.50 63.50 66.70 69.85 73.05 76.20 79.40 92.10 95.25 101.60 114.30 117.50 123.85 127.00 133.35

– – – – 32.0 36.0 – – 41.0 – 44.0 – 49.0 51.0 58.0 60.0 63.0 65.0 66.0 70.0 – 75.0 85.0 90.0 91.0 94.0 98.0 104.0 110.0 114.0 123.0

– – – – 46.0 48.0 – – 53.0 – 56.0 – 59.0 61.0 69.0 72.0 78.0 78.0 82.0 82.0 – 94.0 98.0 107.0 111.0 114.0 116.0 124.0 130.0 133.0 143.0

6.6 5.6 5.6 7.5 8.0 7.5 7.5 7.5 7.5 9.0 10.5 10.5 11.0 11.0 10.3 10.8 12.0 11.6 11.6 11.6 12.3 13.3 13.3 13.0 13.0 14.0 15.0 14.8 14.8 15.8 15.8

7.5 6.5 6.5 8.5 9.0 8.5 8.5 8.5 8.5 10.0 11.5 11.5 12.0 12.0 11.3 11.8 13.2 12.8 12.8 12.8 13.5 14.5 14.5 14.2 14.2 15.2 16.2 16.0 16.0 17.0 17.0

9.0 9.0 10.5 10.5 10.5 10.5 10.5 10.5 10.5 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 13.5 13.5 13.5 13.5 16.0 16.0 16.0 20.0 20.0 20.0 20.0 20.0

9 9 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 12.7 – 12.7 12.7 12.7 14.3 14.3 14.3 15.9 15.9 15.9 19.9 19.9 19.9 19.9 19.9

1/2 5/8 3/4 7/8

– 0.866 1.161 1.161 – – 1.661 1.819 1.937 – 2.177 2.350 – 2.618 – – – – 3.268 – – 3.701 – 3.945 4.142 – 4.394

– 1.102 1.378 1.378 – – 1.890 2.047 2.165 – 2.520 2.693 – 2.969 – – – – 3.622 – – 4.094 – 4.291 4.488 – 4.736

DEPAC_Katalog_engl.indd 22

1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 3 3 3 3 3 3 3

1/8 1/4 3/8 1/2 5/8 3/4 7/8 2 1/8 1/4 3/8 1/2 5/8 3/4 7/8 3 1/8 1/4 3/8 1/2 5/8 3/4 7/8 4

D13

D14

D15

D16

D17

L11

L12

L13

L14

L16

L19

1.094 1.219 1.344 1.469 1.594 1.876 2.000 2.125 2.250 2.375 2.500 2.625 2.750 2.875 3.000 3.125 3.250 3.625 3.750 3.875 4.000 4.500 4.500 4.625 4.875 4.875 5.000 5.125 4.508 4.854 5.250

– – – – 1.614 – – 2.008 2.283 – 2.559 2.598 2.756 2.953 – 3.346 – – 3.583 – – 3.858 – 4.094 4.331 – 4.488 – 4.843

– – – – 2.087 – – 2.402 2.717 – 3.071 3.228 3.228 3.701 – 3.858 – – 4.370 – – 4.567 – 4.882 5.118 – 5.236 – 5.629

0.528 0.654 0.776 0.902 1.028 1.154 1.276 1.402 1.528 1.669 1.791 1.917 2.043 2.165 2.291 2.417 2.543 2.665 2.791 2.917 – 3.169 3.291 3.417 3.543 3.665 3.791 3.917 4.043

1.000 1.250 1.375 1.500 1.625 1.750 1.875 2.000 2.125 2.375 2.500 2.625 2.750 3.000 3.125 3.250 3.375 3.375 3.500 3.750 3.875 4.000 4.125 4.250 4.375 4.500 4.625 4.750 4.875

0.252 0.346 0.346 0.346 0.374 0.374 0.374 0.374 0.374 0.433 0.433 0.433 0.433 0.500 0.500 0.500 0.500 0.563 0.563 0.563 0.563 0.657 0.657 0.657 0.657 0.657 0.657 0.657 0.657

0.315 0.406 0.406 0.406 0.437 0.437 0.437 0.437 0.437 0.500 0.500 0.500 0.500 0.563 0.563 0.563 0.563 0.626 0.626 0.626 0.626 0.780 0.780 0.780 0.780 0.780 0.780 0.780 0.780

– 0.295 0.295 0.295 – – 0.413 0.433 0.406 – 0.457 0.457 – 0.524 – – – – 0.512 – – 0.591 – 0.583 0.583 – 0.622 – 0.622

– 0.335 0.335 0.335 – – 0.453 0.472 0.445 – 0.504 0.504 – 0.571 – – – – 0.559 – – 0.638 – 0.630 0.630 – 0.669 – 0.669

0.354 0.413 0.413 0.413 0.413 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.531 0.531 0.531 0.531 0.630 0.630 0.630 0.630 0.630 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.787

0.354 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.500 0.500 0.500 0.500 0.563 0.563 0.563 0.563 0.626 0.626 0.626 0.626 0.783 0.783 0.783 0.783 0.783 0.783 0.783 0.783

17.11.2010 11:23:15 Uhr

GLANDS/ADAPTERS

23 DEPAC GLANDS/ADAPTERS – A program for all Applications!

Glands must be selected according to the measurements should be checked and chosen or existing stationary part of the compared carefully. component mechanical seal.

For cartridge seals, which already have DEPAC offers a complete range of glands 1/4” NPT connections their placement and adapters for various DEPAC stationar- or direction is not always optimal for the ies, as well as for already existing ones. feed lines. Therefore, DEPAC offers an adjustable adapter, Type 480, for easThe market offers an obscure number ier and more practical connection possiof different stationaries. Therefore, it bilities. is impossible to provide adapters and glands for all existing parts. DEPAC offers Some cartridge seals from other manadapters and glands, predominantly, for ufacturers provide no connection for a DEPAC stationaries. To fit or use DEPAC flush. glands with other stationeries, their

DEPAC_Katalog_engl.indd 23

On the other hand, sometimes design features prohibit flush connections on the glands. In order to also offer flush possibilities in these instances, DEPAC can supply a special tangential flush adapter – Type 490, which is placed between the pump housing and the seal gland.

The special feature of this adapter is that it has a single 1/4” NPT connection which guarantees tangential flushing for either direction of shaft rotation.

MATERIAL Metals SIZES

– DIN 14571, 316 SS

Dshaft

– 18.....100 mm – 3/4“.....4“

Other sizes, materials and design variations upon request.

With these parts, DEPAC offers optimal and simple installation possibilities for all mechanical seals.

17.11.2010 11:23:17 Uhr

24 450

451

500

501

Slots

510

520

DEPAC_Katalog_engl.indd 24

Adapters

●●For Stationaries according to DIN 24960 DS1, DS2, DS3 and DS4 ●●Fits Gland 510

Glands

●●For Stationaries according to DIN 24960 DS1, DS2, DS3 and DS4

Gland

●●For Stationary DS7 ●●For Adapters 450/451

Gland

●●For stationaries DS6 and DS8

17.11.2010 11:23:19 Uhr

GLANDS/ADAPTERS

25 480

1/4” NPT-connection adapter

INCH DS

490

1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/4” NPT-tangential-flush adapter

D3

D8

D9

D11

L4

L5

a1

S

3/4 2.087 0.827 7/8 2.087 0.984 2.283 1.102 1/8 2.402 1.220 1/4 2.402 1.339 3/8 2.598 1.457 1/2 3.071 1.614 5/8 3.071 1.732 3/4 3.150 1.890 7/8 3.386 2.008 3.386 2.087 1/8 3.701 2.244 1/4 3.701 2.362 3/8 3.701 2.480 1/2 4.252 2.598 5/8 4.252 2.717 3/4 4.252 2.874 7/8 4.724 2.992 5.039 3.110 1/8 5.039 3.386 1/4 5.039 3.386 3/8 5.039 3.504 1/2 5.512 3.701 5/8 5.512 3.701 3/4 5.512 3.858 7/8 5.906 4.055 5.906 4.134

1.344 1.469 1.594 1.876 2.000 2.126 2.250 2.376 2.500 2.626 2.750 2.876 3.000 3.126 3.250 3.626 3.750 3.876 4.000 4.500 4.500 4.626 4.876 4.876 5.000 5.126 5.250

3.937 3.937 4.134 4.331 4.331 4.724 5.118 5.118 5.512 5.906 5.906 6.299 6.299 6.299 6.693 6.693 6.693 7.087 7.087 7.874 7.874 7.874 8.268 8.268 8.268 8.661 8.661

0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.512 0.512 0.512 0.512 0.551 0.551 0.551 0.551 0.591 0.591 0.591 0.591 0.650 0.650 0.650 0.650 0.650 0.650 0.650 0.650

0.650 0.650 0.650 0.650 0.650 0.650 0.689 0.689 0.689 0.689 0.709 0.709 0.709 0.709 0.709 0.709 0.748 0.748 0.748 0.768 0.768 0.768 0.768 0.768 0.768 0.768 0.768

2.165 2.165 2.362 2.480 2.480 2.677 3.150 3.150 3.228 3.465 3.465 3.780 3.780 3.780 4.331 4.331 4.331 4.803 5.118 5.118 5.118 5.118 5.591 5.591 5.591 5.984 5.984

0.492 0.492 0.492 0.492 0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846

MM DS

D1

D2

18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 63 65 70 75 80 85 90 95 100

44.0 46.0 51.0 51.0 51.0 54.0 57.0 59.0 59.0 67.0 67.0 70.0 76.0 76.0 80.0 80.0 92.0 92.0 96.0 96.0 102.0 105.0 112.0 122.0 122.0 128.0 131.0 141.0

46.0 48.0 53.0 53.0 53.0 56.0 59.0 61.0 61.0 69.0 69.0 72.0 78.0 78.0 82.0 82.0 94.0 94.0 98.0 98.0 104.0 107.0 114.0 124.0 124.0 130.0 133.0 143.0

DEPAC_Katalog_engl.indd 25

D3

D4

D5

D6

D7

D8

53.0 33.0 46.5 27.0 33.0 21.0 53.0 37.0 48.5 29.0 35.0 22.0 53.0 – – 31.0 37.0 25.0 58.0 42.0 53.5 33.0 39.0 28.0 58.0 42.0 53.5 34.0 40.0 28.0 61.0 45.0 56.5 37.0 43.0 31.0 61.0 45.0 56.5 39.0 45.0 34.0 66.0 50.0 59.5 42.0 48.0 34.0 66.0 50.0 59.5 42.0 48.0 37.0 66.0 52.0 61.5 44.0 50.0 37.0 78.0 59.0 69.5 49.0 56.0 41.0 78.0 61.0 72.5 51.0 58.0 44.0 80.0 66.0 78.5 54.0 61.0 48.0 80.0 66.0 78.5 56.0 63.0 48.0 86.0 71.0 82.5 59.0 66.0 51.0 86.0 71.0 82.5 62.0 70.0 53.0 94.0 76.0 94.5 65.0 73.0 57.0 94.0 76.0 94.5 67.0 75.0 60.0 94.0 86.0 98.5 72.0 80.0 63.0 108.0 88.0 104.5 75.0 83.0 66.0 108.0 91.0 107.5 77.0 85.0 69.0 108.0 92.0 111.5 83.0 92.0 73.0 120.0 95.0 114.5 88.0 97.0 79.0 128.0 99.0 116.5 95.0 105.0 86.0 128.0 105.0 124.5 100.0 110.0 89.0 140.0 111.0 130.5 105.0 115.0 94.0 140.0 115.0 133.5 110.0 120.0 98.0 150.0 124.0 143.5 115.0 125.0 105.0

D9

D11

34.15 35.70 37.30 40.50 40.50 47.65 50.80 50.80 54.00 54.00 57.15 60.35 63.50 63.50 66.70 69.85 73.05 76.20 79.40 82.55 92.10 95.25 101.60 114.30 117.50 123.85 127.00 133.35

100.0 100.0 100.0 105.0 105.0 110.0 110.0 120.0 120.0 120.0 130.0 130.0 140.0 140.0 150.0 150.0 160.0 160.0 160.0 170.0 170.0 170.0 180.0 200.0 200.0 210.0 210.0 220.0

D12

D13

D14

– – – – – – – – – 45.0 58.0 60.0 45.0 58.0 60.0 48.0 58.0 60.0 50.0 65.0 67.0 51.0 65.0 67.0 51.0 65.0 67.0 55.0 65.0 67.0 58.0 73.0 75.0 60.0 73.0 75.0 63.0 80.0 82.0 65.0 80.0 82.0 68.0 80.0 82.0 70.0 80.0 82.0 73.0 90.0 92.0 75.0 90.0 92.0 80.0 98.0 100.0 83.0 98.0 100.0 85.0 98.0 100.0 90.0 110.0 112.0 103.0 126.0 128.0 108.0 131.0 133.0 113.0 136.0 138.0 118.0 141.0 143.0 123.0 146.0 148.0 128.0 151.0 153.0

R

d

L1

L2

L3

L4

L5

a1

a2

S

– – – 38.0 38.0 38.0 42.0 42.0 42.0 42.0 44.0 44.0 49.0 49.0 49.0 49.0 53.0 53.0 57.0 57.0 57.0 59.0 64.0 66.5 69.0 71.5 74.0 76.5

3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 10.0 10.0 10.0 10.0 10.0 10.5 10.5 10.5 10.5 10.5 10.5 11.5 11.5 12.0 12.0 12.0 12.0 12.0

17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 18.5 18.5 18.5 18.5 18.5 19.0 19.0 19.0 19.0 19.0 19.0 20.0 20.0 20.5 20.5 20.5 20.5 20.5

19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 20.5 20.5 20.5 20.5 20.5 21.0 21.0 21.0 21.0 21.0 21.0 22.0 22.0 22.5 22.5 22.5 22.5 22.5

12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 13.0 13.0 13.0 13.0 13.0 14.0 14.0 14.0 14.0 15.0 15.0 15.0 16.5 16.5 16.5 16.5 22.0

16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 17.5 17.5 17.5 17.5 17.5 18.0 18.0 18.0 18.0 18.0 18.0 19.0 19.0 19.5 19.5 19.5 19.5 16.5

55.0 55.0 55.0 60.0 60.0 63.0 63.0 68.0 68.0 68.0 80.0 80.0 82.0 82.0 88.0 88.0 96.0 96.0 96.0 110.0 110.0 110.0 122.0 130.0 130.0 142.0 142.0 19.5

55.0 55.0 – 60.0 60.0 63.0 63.0 68.0 68.0 68.0 80.0 80.0 85.0 85.0 90.0 90.0 106.0 106.0 106.0 110.0 119.0 119.0 122.0 126.0 134.0 142.0 142.0 152.0

12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 14.7 14.7 14.7 14.7 14.7 14.7 14.7 14.7 14.7 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5

17.11.2010 11:23:21 Uhr

26 TECHNICAL DATA

DEPAC ADVANTAGES

Range of application Pressure – 10 bar (150 PSI) Temperature – Elastomer dependant Speed – 15 m/sec. (3000 FPM) Sizes Dshaft – 10......100 mm

– 3/8”.....4”

●●Wide range of applications

Materials Metals Springs Faces O-rings

Wedges

●●Short installation lengths

– DIN 1.4571, 316 SS – DIN 1.4310, Hastelloy C – CA, CE, SC, SSIC, TC – FPM, EPDM, FEP encaps., – Chemraz, Kalrez, Aflas, etc.

– PTFE, Graphite

●●Low costs ●●Use with different stationary faces possible ●●Wide range of materials

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

DYNAMIC, unbalanced seals are manufactured for general applications. Typically, OEM companies buy these seals in large quantities. The selection of one or the other design depends on the pre­ ference of the OEM, the application and the mounting requirements of the customer.

Important to know is that dynamic mechanical seals with an O-ring or wedge construction can damage the shaft through their axial movement.

Therefore these seals should only be used in connection with shaft protecting sleeves.

TYPE 159 ●●PTFE (graphite)-wedge ●●Direction of rotation independent

Mechanical seal designs containing multiple springs guarantee a more even face load, avoiding unnecessary vibrations within the equipment.

Stepped sleeves make the positioning of seals easier. If this is not possible, retainer rings set screwed to the shaft/sleeve are used for proper positioning.

As far as technically possible, stationary faces should be flexibly mounted to dampen general shock and vibrations within the equipment. This should preferably be done with an elastomer (O-Ring, cup, etc.).

DEPAC_Katalog_engl.indd 26

TYPE 159 A

DIN 24960 ●●PTFE (graphite) – wedge ●●Direction of rotation independent ●●L1KU - measurements in connection with stationaries DS1 and DS2

17.11.2010 11:23:24 Uhr

DYNAMIC

unbalanced

27 TYPE 161

DIN 24960 ●●Direction of rotation dependent ●●“clockwise” (right) or “counter clock-wise” (left) turning spring available ●●L1KU measurements in connection with stationaries DS1 and DS2

PLEASE NOTE For the different stationaries or glands available on the market, DEPAC offers a large variety of component seals without stationaries to fit these existing parts.

The suitable DEPAC stationaries and their measurements can be found and selected on page 20 to 22.

The standard DEPAC glands and adapters are indicated on page 23 to 25.

You can obtain O-Ring measurements or their “Dash” numbers by inquiry. This information is also found in the installation instructions supplied with the seals.

INCH

MM DS

D1

D2

D3

D4

D7

L1

L2

L3

L4

L1KU

DS

D1

D3

D4

10 12 14 15 16 18 19 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

24.2 – 28.4 29.0 30.8 33.8 – 34.8 35.6 38.8 39.8 43.4 46.4 49.7 – 51.3 54.5 59.6 – 64.7 67.2 69.6 – 77.7 82.7 87.7 92.6 96.3 101.1 107.7 112.7 117.7 122.7

– – 24.0 – 26.0 32.0 – 34.0 36.0 38.0 39.0 42.0 44.0 46.0 47.0 49.0 54.0 56.0 59.0 61.0 64.0 66.0 69.0 71.0 80.0 85.0 90.0 95.0 104.0 109.0 114.0 119.0 124.0

– – – – – 32.0 – 34.0 36.0 38.0 39.0 42.0 44.0 46.0 47.0 49.0 54.0 56.0 59.0 61.0 64.0 66.0 69.0 71.0 80.0 85.0 – – – – – – –

19.0 21.0 23.7 24.7 25.7 30.5 31.5 32.5 34.5 36.5 37.5 41.5 43.5 45.5 46.5 48.5 54.5 56.5 59.5 61.5 64.5 66.5 69.5 72.5 80.5 85.5 90.5 95.5 – – – – –

21.0 23.0 25.0 27.0 27.0 33.0 35.0 35.0 37.0 39.0 40.0 43.0 45.0 48.0 48.0 50.0 56.0 58.0 61.0 63.0 66.0 70.0 73.0 75.0 80.0 85.0 92.0 97.0 105.0 110.0 115.0 120.0 125.0

21.0 – 21.0 – 19.0 22.0 – 24.0 24.0 25.0 25.0 27.0 27.0 29.0 – 29.0 29.0 35.0 – 35.0 35.0 35.0 – 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0 43.0

24.7 24.7 27.2 27.2 27.2 27.3 27.3 27.3 27.3 29.8 29.8 32.3 32.3 32.3 32.3 32.3 33.3 33.3 33.3 33.3 33.3 33.8 33.8 33.8 38.8 38.8 44.4 44.4 43.7 43.7 48.7 48.7 48.7

– – – – – 19.5 – 22.0 22.0 23.5 26.5 26.5 26.5 28.5 28.5 28.5 33.5 36.0 38.5 39.5 46.0 46.0 47.0 49.0 55.0 55.0 – – – – – – –

25.9 25.9 28.4 28.4 28.4 30.0 30.0 30.0 30.0 32.5 32.5 35.0 35.0 35.0 35.0 35.0 36.0 36.0 36.0 36.0 36.0 38.0 36.5 36.5 41.5 41.5 48.7 48.7 – – – – –

32.5 32.5 35.0 35.0 35.0 37.5 37.5 37.5 37.5 40.0 40.0 42.5 42.5 42.5 42.5 42.5 45.0 45.0 45.0 45.0 45.0 47.5 47.5 47.5 52.5 52.5 60.0 60.0 60.0 60.0 65.0 65.0 65.0

5/8 1.209 3/4 1.339 7/8 1.465 1.587 1/8 1.713 1/4 1.902 3/8 2.028 1/2 2.150 5/8 2.402 3/4 2.528 7/8 2.650 2.776 1/8 3.028 1/4 3.150 3/8 3.276 1/2 3.402 5/8 3.528 3/4 3.650 7/8 3.776 3.839 1/8 3.965 1/4 4.150 3/8 4.276 1/2 4.402 5/8 4.528 3/4 4.650 7/8 4.776 4.902

– 1.339 1.417 1.535 1.654 1.811 1.929 2.126 2.323 2.402 2.520 2.717 2.795 3.091 3.150 3.346 – – – – – – – – – – – –

1.012 1.240 1.358 1.476 1.634 1.791 1.909 2.146 2.343 2.421 2.539 2.736 2.854 3.091 3.169 3.327 3.563 3.563 3.760 3.760 – – – – – – – –

DEPAC_Katalog_engl.indd 27

1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

D7

L1

L2

1.063 0.748 1.378 0.874 1.457 0.937 1.575 1.000 1.693 1.063 1.890 1.063 1.969 1.126 2.205 1.126 2.402 1.378 2.480 1.378 2.598 1.378 2.874 1.378 2.953 1.693 3.071 1.693 3.150 1.693 3.346 1.693 3.622 1.693 3.622 1.693 3.819 1.693 3.819 1.693 4.134 1.693 4.331 1.693 4.331 1.693 4.528 1.693 4.724 1.693 4.724 1.693 4.921 1.693 4.921 1.693

1.071 1.075 1.075 1.173 1.272 1.272 1.272 1.311 1.311 1.311 1.311 1.331 1.331 1.528 1.528 1.528 1.748 1.748 1.748 1.748 1.720 1.720 1.720 1.917 1.917 1.917 1.917 1.917

L3

L4

L1KU

– 1.118 1.378 0.866 1.181 1.476 0.866 1.280 1.476 1.043 1.378 1.575 1.043 1.378 1.673 1.122 1.378 1.673 1.122 1.378 1.673 1.319 1.417 1.772 1.516 1.417 1.772 1.555 1.417 1.772 1.811 1.417 1.772 1.850 1.437 1.870 1.929 1.437 1.870 2.165 1.634 2.067 2.165 1.634 2.067 2.165 1.634 2.067 – 1.917 2.362 – 1.917 2.362 – 1.917 2.362 – 1.890 2.362 – – 2.362 – – 2.362 – – 2.362 – – 2.559 – – 2.559 – – 2.559 – – 2.559 – – 2.559

17.11.2010 11:23:26 Uhr

28 TECHNICAL DATA Range of application Pressure Temperature Speed Sizes Dshaft

– 10 bar (150 PSI) – Elastomer dependent – 15 m/sec. (3000 FPM) – 10 ..... 75 mm – 3/8” ..... 3“

Materials Metals

– DIN 1.4301, 1.4571 304 SS, 316 SS Faces – CA, CE, SC, SSIC Springs – DIN 1.4310, 301 SS Rubber Bellows – NBR, EPDM, FPM

DEPAC ADVANTAGES ●●Premounted rotating unit ●●Direction of rotation independent ●●Wide range of applications ●●Low cost ●●Use with various stationaries ●●For short and DIN installation length ●●No shaft or sleeve wear

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

DEPAC offers, especially for the OEM market, a complete, cost efficient, very interesting seal program with rubber bellows design.

The different Types are designed for use in various installation spaces.

TYPE 170 ●●short length ●●available in mm and inch measurements

The use of rubber bellows has many advantages:

●●Premounted rotating unit ●●No sticking or hang up of O-Rings ●●No fretting of shafts/sleeves ●●Optimal shock and vibration dampening All the shown DEPAC seal variations can also be used with different DEPAC stationaries. Typically DEPAC offers the stationary DS4 as standard. Please note that other stationaries change the installation length.

TYPE 170 A ●●L1KU installation length with stationary DS4

Use this cost effective seal alternative, especially when a large number of seals are needed!

DEPAC_Katalog_engl.indd 28

17.11.2010 11:23:28 Uhr

DYNAMIC

RUBBER BELLOWS

unbalanced

29 SPECIAL CONSTRUCTIONS on request Example 1

PLEASE NOTE For a good fit of the rubber bellow, the shaft or sleeve surfaces should not be too smooth or polished.

For easier installation, use soapy water (no oil or grease) as a lubricant.

Example 2

MM

INCH DIN

DS 10 12 14 16 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80

For the Type 170 in inch sizes, the stationaries are normally chosen in accordance with the existing or predetermined installation measurements.

The appropriate measurements for L2 and D7 can be found in the table for stationaries.

D1 22.5 25.0 28.5 28.5 32.0 37.0 37.0 42.5 42.5 49.0 49.0 53.5 53.5 57.0 59.0 62.0 65.5 68.0 70.5 74.0 78.5 81.0 88.5 93.5 99.5 107.0 112.0

D7 21.0 23.0 25.0 27.0 33.0 35.0 37.0 39.0 40.0 43.0 45.0 48.0 48.0 50.0 56.0 58.0 61.0 63.0 66.0 70.0 73.0 75.0 80.0 85.0 92.0 97.0 105.0

DEPAC_Katalog_engl.indd 29

DIN

L1 14.5 15.0 17.0 17.0 19.5 21.5 21.5 22.5 23.0 26.5 26.5 27.5 27.5 28.5 30.0 30.0 30.0 30.0 30.5 30.5 33.0 35.0 38.0 40.0 40.0 40.0 40.0

L2 21.0 21.6 23.6 23.6 27.0 29.0 29.0 30.0 30.5 34.0 34.0 35.0 35.0 36.0 39.0 39.0 39.0 39.0 39.5 40.0 44.0 46.0 49.0 51.0 51.3 51.3 52.0

L3 L1KU 25.9 32.5 25.9 32.5 28.4 35.0 28.4 35.0 30.0 37.5 30.0 37.5 30.0 37.5 32.5 40.0 32.5 40.0 35.0 42.5 35.0 42.5 35.0 42.5 35.0 42.5 35.0 42.5 36.0 45.0 36.0 45.0 36.0 45.0 36.0 45.0 36.0 45.0 38.0 47.5 36.5 47.5 36.5 47.5 41.5 52.5 41.5 52.5 48.7 60.0 48.7 60.0 48.0 60.0

1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3

DS

D1

L1

3/8 1/2 5/8 3/4 7/8

0.886 0.984 1.122 1.457 1.457 1.673 1.929 2.106 2.244 2.323 2.579 2.677 2.776 2.913 3.189 3.366 3.484 3.681 3.799 3.917 4.213 4.213

0.571 0.591 0.669 0.846 0.846 0.906 1.043 1.083 1.122 1.181 1.181 1.181 1.201 1.201 1.378 1.457 1.496 1.575 1.575 1.575 1.575 1.575

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

17.11.2010 11:23:29 Uhr

30 TECHNICAL DATA Range of application Pressure – 10 bar (150 PSI) Temperature – Elastomer dependent Speed – 15 m/sec. (3000 FPM) SIZES Dshaft – 10 ..... 80 mm inch sizes on request MATERIALS Metals – DIN 1.4301, 1.4571 304 SS, 316 SS Faces – CA, CE, SC, SSIC Springs – DIN 1.4310, 301 SS Rubber Bellows – NBR, EPDM, FPM

DEPAC ADVANTAGES ●●Low costs ●●Use with various stationaries ●●For different installation lengths ●●No shaft or sleeve wear

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

From the large seal program specially developed for the OEM market, DEPAC offers a group of seals with a “shortrubber-bellow” design.

TYPE 175 A

DIN 24960 ●●L1KU installation length in conjunction with stationaries DS1 and DS2

All the shown seal variations can be used with different stationaries.

TYPE 175 B ●●TYPES 175 B, C and D offer different installation lengths ●●The installation length L3 is calculated with the use of the stationary DS6

DEPAC_Katalog_engl.indd 30

17.11.2010 11:23:31 Uhr

DYNAMIC

RUBBER BELLOWS

unbalanced

31 TYPE 175 C

PLEASE NOTE ●●The installation length L5 is calculated For a good fit of the rubber bellows the shaft/sleeve surfaces should not be too with the use of the stationary DS6 smooth or polished.

For easier installation, use soapy water (no oil or grease) as a lubricant.

Type 175 is also available in corresponding inch sizes. Information and delivery upon request.

TYPE 175 D ●●The installation length L7 is calculated with the use of the stationary DS9

MM DS

D1

D2

D3

D7

L1

L2

L3

L4

L5

L6

L7

L1KU

10 12 14 16 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80

20.0 22.0 24.0 26.0 32.0 34.0 36.0 38.0 39.0 42.0 44.0 46.0 47.0 49.0 54.0 56.0 59.0 61.0 64.0 66.0 69.0 71.0 80.0 85.0 90.0 99.0 104.0

24.6 27.8 31.0 31.0 34.2 35.7 37.3 40.5 40.5 47.7 50.8 50.8 54.0 54.0 57.2 60.4 63.5 63.5 66.7 69.9 73.1 76.2 79.4 92.1 95.3 101.6 114.3

19.2 21.6 24.6 28.0 30.0 35.0 35.0 38.0 38.0 42.0 45.0 48.0 50.0 52.0 55.0 58.0 62.0 64.0 68.4 69.3 72.3 75.4 80.4 85.4 92.0 99.0 104.0

21.0 23.0 25.0 27.0 33.0 35.0 37.0 39.0 40.0 43.0 45.0 48.0 48.0 50.0 56.0 58.0 61.0 63.0 66.0 70.0 73.0 75.0 80.0 85.0 92.0 97.0 105.0

24.7 24.7 27.2 27.2 27.3 27.3 27.3 29.8 29.8 32.3 32.3 32.3 32.3 32.3 33.3 33.3 33.3 33.3 33.3 33.8 33.8 33.8 38.8 38.8 44.4 44.4 43.7

25.4 25.4 25.4 25.4 25.4 25.4 25.4 25.4 25.4 33.3 33.3 33.3 33.3 33.3 33.3 34.0 41.2 41.2 41.2 40.5 40.5 40.5 40.5 49.0 49.0 52.0 56.0

34.4 34.4 35.9 35.9 35.9 35.9 35.9 35.9 35.9 45.3 45.3 45.3 45.3 45.3 45.3 46.0 53.2 53.2 53.2 54.0 54.0 54.0 54.0 65.0 65.0 68.0 76.0

43.7 43.7 43.7 43.7 43.7 43.7 43.7 43.7 43.7 60.3 60.3 60.3 60.3 60.3 60.3 60.3 71.4 71.4 71.4 70.7 70.7 70.7 70.7 70.7 70.7 73.0 79.0

52.7 52.7 54.2 54.2 54.2 54.2 54.2 54.2 54.2 72.3 72.3 72.3 72.3 72.3 72.3 72.3 83.4 83.4 83.4 84.2 84.2 84.2 84.2 86.7 86.7 89.0 99.0

15.9 17.4 17.4 19.1 20.6 22.1 23.6 25.1 26.6 26.6 25.1 28.6 – 28.4 32.3 34.8 – 39.3 44.8 45.8 – 49.0 53.0 54.3 56.3 56.3 59.3

22.5 23.0 23.0 26.6 28.6 29.6 31.1 32.6 34.1 35.6 35.6 39.1 – 39.4 42.6 45.6 – 50.9 56.4 57.4 – 62.3 66.3 67.3 69.3 70.3 74.3

32.5 32.5 35.0 35.0 37.5 37.5 37.5 40.0 40.0 42.5 42.5 42.5 42.5 42.5 45.0 45.0 45.0 45.0 45.0 47.5 47.5 47.5 52.5 52.5 60.0 60.0 60.0

DEPAC_Katalog_engl.indd 31

17.11.2010 11:23:33 Uhr

32 TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Temperature – Elastomer dependent Speed – 25 m/sec. (5000 FPM) Sizes Dshaft – 18......100 mm 1“.......4“ Materials Metals

DEPAC ADVANTAGES ●●Pressure balanced for longer service life ●●Wide range of applications ●●Direction of rotation independent ●●Types 186/200 also for slurry applications

– DIN 1.4571, 316 SS 304 SS, 316 SS Springs – Hastelloy C Faces – CA, CE, SC, SSIC, TC O-Rings – FPM, EPDM, FEP encaps., Chemraz, Kalrez, Aflas, etc.

Welded bellows – Hastelloy C Wedges – PTFE, Graphite Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

Pressure balanced seals have a lower face load and therefore lower friction which in turn results in less wear of the faces.

The seal lasts longer.

If only a small space in the stuffing box is available, an outside mounted seal design is the solution. Additionally there are no metal parts that come in contact with the medium. For highly aggressive media this seal (Type 140) is an economical alternative to expensive special alloy seals.

Welded bellow seal, Type 200, and multi-spring seal, Type 186, have a self cleaning effect if used in media containing solids. Solids cannot build up and the secondary seal (O-ring) moves “away” from the solids during face wear.

DEPAC_Katalog_engl.indd 32

TYPE 140 ●●Outside mounted ●●Carbon faces with SS reinforcement ●●Clamped to the shaft/sleeve (over 10 bar a positive clamp/support ●●No set screws ●●No metal parts in contact with the medium ●●Springs outside ●●Hastelloy C springs

TYPE 186

DIN 24960 ●●L1KU installation length in connection with stationaries DS1 and DS2 ●●No fretting of shafts/sleeves ●●Springs outside the mediums ●●Hastelloy C springs

17.11.2010 11:23:35 Uhr

DYNAMIC

unbalanced

33 TYPE 159 B

●●PTFE (graphite) wedge ●●Step on shaft sleeve is necessary ●●Springs are within the medium.

Use in clean media only

PLEASE NOTE Mechanical seals, produced especially for DIN 24960, can most certainly also be used in all other equipment including open stuffing boxes.

The commonly offered stationary parts, glands, as well as adapters can be found on page 20 to 25.

TYPE 159 C

For special requirements DEPAC offers O-Ring seals for larger diameters than the standard sizes shown.

DIN 24960 ●●L1KB installation length in conjunction with stationaries DS1 and DS2

O-Ring measurements or their “Dash”numbers can be obtained from DEPAC or one of our distributing partners. This information can also be found in the installation manual supplied with every seal.

TYPE 200

●●No fretting of shafts/sleeves ●●Welded bellows – Hastelloy C Self cleaning MM

INCH DS

L1

24 – 65 70 – 100

MM

DS

38.0 41.0

L1

1 – 2 1/2 2 5/8 – 4

1.496 1.614

INCH DIN

DIN

DS

D1

D2

D5

D6

D7

D8

L2

18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

– – – 51.0 52.0 55.0 57.0 59.0 60.0 62.0 65.0 67.0 70.0 72.0 75.0 77.0 80.0 82.0 87.0 92.0 97.0 102.0 107.0 112.0 117.0 122.0 127.0

32.0 34.0 36.0 38.0 39.0 42.0 44.0 46.0 47.0 49.0 52.0 54.0 57.0 59.0 62.0 65.0 68.0 70.0 78.0 83.0 88.0 93.0 103.0 108.0 113.0 118.0 123.0

22.0 24.0 26.0 28.0 30.0 33.0 35.0 38.0 38.0 40.0 43.0 45.0 48.0 45.0 53.0 55.0 58.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0

36.0 38.0 40.0 42.0 44.0 47.0 49.0 54.0 54.0 56.0 59.0 61.0 64.0 66.0 69.0 71.0 78.0 80.0 85.0 90.0 95.0 104.0 109.0 114.0 119.0 124.0 129.0

33.0 35.0 37.0 39.0 40.0 43.0 45.0 48.0 48.0 50.0 56.0 58.0 61.0 63.0 66.0 70.0 73.0 75.0 80.0 85.0 92.0 97.0 105.0 110.0 115.0 120.0 125.0

– – – – 40.0 43.0 45.0 47.0 47.0 49.2 53.0 56.0 58.0 58.0 62.0 66.0 68.0 72.0 75.0 84.1 85.0 92.1 99.0 105.0 108.0 114.3 118.0

31.8 31.8 31.8 31.8 31.8 32.3 32.3 32.3 32.3 32.3 33.3 33.3 33.3 33.3 33.3 33.8 33.8 33.8 38.8 38.8 44.4 44.4 43.7 43.7 48.7 48.7 48.7

DEPAC_Katalog_engl.indd 33

L5

L6

DIN

DIN

L1KU L1KU

20.0 – *42.0 45.0 20.0 – *42.0 45.0 20.0 – *42.0 45.0 20.0 – *42.0 47.5 20.0 29.0 *42.0 47.5 20.0 31.0 42.5 50.0 20.0 31.0 42.5 50.0 20.0 31.0 42.5 50.0 20.0 31.0 42.5 50.0 20.0 31.0 42.5 50.0 23.0 32.0 45.0 52.5 23.0 32.0 45.0 52.5 23.0 32.0 45.0 52.5 23.0 32.0 45.0 52.5 23.0 32.0 45.0 52.5 25.0 34.0 47.5 57.5 25.0 34.0 47.5 57.5 25.0 34.0 47.5 57.5 25.0 38.0 52.5 62.5 25.0 38.0 52.5 62.5 28.0 42.0 60.0 70.0 28.0 42.0 60.0 70.0 28.0 42.0 60.0 70.0 28.0 42.0 60.0 75.0 28.0 47.0 65.0 75.0 28.0 48.0 65.0 75.0 28.0 48.0 65.0 75.0 * deviates from the Norm

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

DIN

D1

D2

D3

D4

D7

D8

L2

L3

L4

L6

L1KU

2.047 2.165 2.323 2.441 2.559 2.756 2.835 2.953 3.031 3.150 3.425 3.425 3.622 3.819 3.819 4.016 4.213 4.213 4.409 4.409 4.606 4.803 4.803 5.000 5.059

– 1.732 1.811 1.929 2.047 2.244 2.323 2.441 2.677 2.756 3.071 3.189 3.268 3.465 3.465 3.661 4.055 4.055 4.252 4.252 4.449 4.646 4.646 4.843 5.039

0.874 1.000 1.126 1.126 1.252 1.374 1.500 1.626 1.752 1.874 2.000 2.126 2.252 2.374 2.500 2.626 2.752 2.874 3.000 3.126 3.252 3.374 3.500 3.626 3.752

1.587 1.713 1.902 2.028 2.150 2.402 2.528 2.650 2.776 3.028 3.150 3.276 3.402 3.528 3.650 3.776 3.839 3.965 4.150 4.276 4.402 4.528 4.650 4.776 4.902

1.575 1.693 1.890 1.969 2.205 2.402 2.480 2.598 2.874 2.953 3.150 3.150 3.346 3.622 3.622 3.819 4.134 4.134 4.331 4.331 4.528 4.724 4.724 4.921 5.157

1.575 1.693 1.850 1.937 2.087 2.205 2.283 2.441 2.598 2.677 2.835 2.953 3.189 3.311 3.346 3.626 3.898 3.898 4.134 4.134 4.252 4.500 4.500 4.646 4.803

– 1.272 1.272 1.272 1.311 1.311 1.311 1.311 1.331 1.331 1.528 1.528 1.528 1.748 1.748 1.748 1.720 1.720 1.720 1.720 1.917 1.917 1.917 1.917 1.917

1.299 1.378 1.378 1.457 1.457 1.772 1.772 1.772 1.772 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047 2.047

0.252 0.311 0.311 0.343 0.343 0.343 0.374 0.374 0.374 0.437 0.437 0.437 0.437 0.437 0.437 0.437 0.437 0.437 0.563 0.563 0.563 0.563 0.563 0.563 0.563

1.142 1.220 1.220 1.220 1.260 1.260 1.260 1.260 1.339 1.339 1.339 1.496 1.496 1.496 1.654 1.654 1.654 1.654 1.654 1.654 1.850 1.890 1.890 1.890 1.890

1.575 1.673 1.673 1.673 1.772 1.772 1.772 1.772 1.870 1.870 2.067 2.067 2.067 2.362 2.362 2.362 2.362 2.362 2.362 2.362 2.559 2.559 2.559 2.559 2.559

17.11.2010 11:23:37 Uhr

34 TECHNICAL DATA

DEPAC ADVANTAGES

Range of application Pressure – 700 mm Hg – 30 bar (450 PSI) Temperature – Elastomer dependent Speed – 30 m/sec. (6000 FPM)

●●Stationary mechanical seal design

Sizes Dshaft

●●No stepped sleeve for pressure balancing necessary

– 18 ..... 100 mm – 1“ ..... 4“

Materials Metals

– DIN 1.4571, 316 SS, Hastelloy C Springs – Hastelloy C Faces – CA, CE, SC, SSIC, TC O-Rings – FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

Welded bellows – AM 350, Hastelloy C Rolled bellows – Hast. C, Incolloy

●●No fretting of shafts/sleeves ●●Pressure balanced

●●Shock and vibration dampened secondary faces ●●Springs outside the media ●●Direction of rotation independent

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

Stationary seals from DEPAC are all pressure balanced.

Due to this design with lower face load and corresponding reduced wear, a reliable, longer service life is offered.

With all of the shown seal designs DEPAC offers more reliability in every seal application. Critical applications, such as hot water or media, which contain abrasives or other solids, are effectively and economically sealed with these alternatives. Stop sleeve wear and short seal life caused by dynamic, non-pressure balanced seals.

Use DEPAC stationary seals!

DEPAC_Katalog_engl.indd 34

TYPE 191 ●●Mechanical seal for any open stuffing box ●●No special gland necessary ●●Mechanical seal as alternative to packing

TYPE 196

DIN 24960 ●●Seal with elastomer O-Rings

17.11.2010 11:23:39 Uhr

STATIONÄRE KONSTRUKTION STATIONARY balanced

35 TYPE 201

PLEASE NOTE To avoid axial movement of seals on DIN 24960 the shaft/sleeve under pressure con●●Rolled bellows – Hastelloy C ditions at or above 15 bar (225 PSI), ●●Alternative with PTFE O-Rings ●●Temperatures up to 240 °C (460 °F) DEPAC recommends drilling the shaft/ sleeve where the set screws are to be and 20 bar (300 PSI) pressure tightened. ●●Ideal for hot water and chemical applications Of course, DEPAC seals designed for DIN ●●For slurries or media with solids 24960 can also be used with matching DEPAC adapters or glands in all other open stuffing boxes. It is important to compare the related dimensions of your equipment.

TYPE 211

●●Welded bellows – Hastelloy C ●●Alternative with PTFE O-Rings ●●Pressure up to 25 bar (375 PSI)

MM

Glands and adapters offered by DEPAC can be found on pages 23 to 25.

DEPAC also offers the O-Ring design of mechanical seals for larger diameters not listed.

INCH DIN

DIN

DIN

DS

D1

D2

D3

D4

D6

D7

L1

L2

L3

L4

L1KU

18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

31.5 33.5 35.1 37.5 38.5 42.0 44.0 46.0 47.0 49.0 54.0 56.0 59.0 61.0 64.0 66.0 69.0 71.0 76.0 81.0 86.0 91.0 101.0 106.0 111.0 116.0 121.0

33.8 35.8 37.8 39.8 40.8 43.7 45.7 47.7 48.7 50.7 57.7 59.7 62.7 64.7 67.7 69.7 72.7 74.7 84.7 89.7 94.7 103.7 108.7 113.7 118.7 123.7 128.7

46.0 48.0 48.0 53.0 53.0 56.0 59.0 61.0 61.0 61.0 69.0 72.0 78.0 78.0 82.0 82.0 94.0 94.0 98.0 104.0 107.0 116.0 124.0 130.0 133.0 143.0 143.0

– – – – – 42.0 44.0 47.0 47.0 49.0 53.0 55.0 58.0 60.0 65.0 65.0 68.0 70.0 74.0 80.0 84.0 – – – – – –

27.0 29.0 31.0 33.0 34.0 37.0 39.0 42.0 42.0 44.0 49.0 51.0 54.0 56.0 59.0 62.0 65.0 67.0 72.0 77.0 83.0 88.0 95.0 100.0 105.0 110.0 115.0

33.0 35.0 37.0 39.0 40.0 43.0 45.0 48.0 48.0 50.0 56.0 58.0 61.0 63.0 66.0 70.0 73.0 75.0 80.0 85.0 92.0 97.0 105.0 110.0 115.0 120.0 125.0

27.0 27.0 27.0 30.0 30.0 31.0 31.0 31.0 31.0 31.0 33.5 33.5 33.5 33.5 33.5 31.0 31.0 31.0 36.0 36.0 43.5 43.5 43.5 43.5 48.5 48.5 48.5

18.0 18.0 18.0 18.0 18.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0

45.0 45.0 45.0 48.0 48.0 51.0 51.0 51.0 51.0 51.0 53.5 53.5 53.5 53.5 53.5 56.0 56.0 56.0 61.0 61.0 68.5 68.5 68.5 68.5 73.5 73.5 73.5

– – – – – 40.0 40.0 40.0 40.0 40.0 42.0 42.0 42.0 42.0 42.0 44.0 44.0 44.0 49.0 49.0 56.0 – – – – – –

37.5 37.5 37.5 40.0 40.0 42.5 42.5 42.5 42.5 42.5 45.0 45.0 45.0 45.0 45.0 47.5 47.5 47.5 52.5 52.5 60.0 60.0 60.0 60.0 65.0 65.0 65.0

DEPAC_Katalog_engl.indd 35

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

DIN

D1

D2

D3

D4

D6

D7

L1

L2

L3

L4

L1KU

1.720 1.732 1.811 1.929 2.126 2.323 2.402 2.520 2.717 2.795 2.992 2.992 3.189 3.386 3.386 3.583 3.976 3.976 4.173 4.370 4.370 4.567 4.567 4.764 4.961

2.205 1.799 1.878 1.996 2.272 2.469 2.547 2.665 2.862 2.941 3.335 3.335 3.531 3.728 3.728 4.083 4.280 4.280 4.476 4.673 4.673 4.870 4.870 5.067 5.264

– 2.323 2.402 2.402 2.717 3.071 3.071 3.228 3.701 3.701 3.858 3.858 4.094 4.213 4.213 4.567 4.882 4.882 5.118 5.236 5.236 5.630 5.630 5.630 5.630

1.457 1.732 1.850 1.929 2.087 2.283 2.362 2.559 2.677 2.756 2.913 2.913 3.150 3.307 3.307 – – – – – – – – – –

1.693 1.535 1.654 1.732 1.929 2.126 2.205 2.323 2.559 2.638 2.835 2.835 3.031 3.268 3.268 3.465 3.740 3.740 3.937 4.134 4.134 4.331 4.331 4.528 4.724

1.220 1.772 1.890 1.969 2.205 2.402 2.480 2.598 2.874 2.953 3.150 3.150 3.346 3.622 3.622 3.819 4.134 4.134 4.331 4.528 4.528 4.724 4.724 4.921 5.157

0.787 1.220 1.220 1.220 1.319 1.319 1.319 1.319 1.417 1.417 1.417 1.417 1.417 1.713 1.713 1.713 1.713 1.713 1.713 1.909 1.909 1.909 1.909 1.909 1.909

2.008 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984

– 2.008 2.008 2.008 2.106 2.106 2.106 2.106 2.106 2.205 2.402 2.402 2.402 2.697 2.697 2.697 2.697 2.697 2.697 2.894 2.894 2.894 2.894 2.894 2.894

1.673 1.575 1.575 1.575 1.654 1.654 1.654 1.654 1.732 1.732 1.929 1.929 1.929 2.205 2.205 – – – – – – – – – –

1.673 1.673 1.673 1.772 1.772 1.772 1.772 1.772 1.870 2.067 2.067 2.067 2.362 2.362 2.362 2.362 2.362 2.362 2.559 2.559 2.559 2.559 2.559 2.559

17.11.2010 11:23:41 Uhr

36 TECHNICAL DATA

DEPAC ADVANTAGES

Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Temperature – Elastomer dependent Speed – 35 m/sec. (7000 FPM) Sizes Dshaft – 24.....100 mm – 1“.....4“

●●270 gland with 1/8” NPT connections for flush and quench (up to Ø 70 mm 2 3/4”)

Materials Metals

●●Direction of rotation independent

– DIN 1.4571, 316 SS, Hastelloy C Springs – Hastelloy C Faces – CA, CE, SC, SSIC, TC O-Rings – FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

Welded bellows – AM 350, Hastelloy C Rolled bellows – Hast. C, Incolloy

●●Shock and vibration dampened secondary faces ●●Springs outside the media

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

World wide the preference and use of Cartridge seals is ever increasing. The simplicity of installation and removal is convincing.

Installation difficulties andmistakes are largely avoided, also making this feature a deciding factor. Since wear and spare part costs are the same, total running costs are the same as for component seals.

TYPE 270 ●●O-Ring design ●●1/8” NPT connections for flush and quench (up to Ø 70 mm - 2 3/4”) ●●Extremely short design

DEPAC offers a wide range of cartridge seals.

The various alternatives are based on the general design details with O-Rings, rolled bellows or welded bellows as secondary sealing devices.

Most glands are produced using the investment casting method, which combines high accuracy and excellent surface quality with cost effective production. This results in very competitive sales prices.

TYPE 279 ●●Rolled bellows ●●Alternative with PTFE O-Rings

The stationary design principle, which DEPAC developed for the process industry in the early ‘80’s, offers the highest reliability in the most difficult seal applications.

DEPAC_Katalog_engl.indd 36

17.11.2010 11:23:45 Uhr

STATIONARY

CARTRIDGES Economy

balanced

37 TYPE 296

PLEASE NOTE For some exceptionally small pump designs, only very small SB cross sections are available. Therefore, it is essential to compare D1 with the relevant pump dimensions.

●●Welded bellows ●●Alternative with PTFE O-Rings

The distance D1 to the SB - ID should be no less than approximately 1 mm (0,039”) in the radius.

To avoid axial movement of seals on the shaft/sleeve under pressure conditions at or above 15 bar (225 PSI), DEPAC recommends drilling the shaft/ sleeve where the set screws are to be tightened.

Glands

Quench 1/8” NPT

●●Alternatives – Standard – for usual SB-dimensions – Large – for larger seal chamber dimensions ●●1/8“ NPT flush and quench available for Type 270 only

Flush 1/8” NPT

MM

INCH

DS

D1

D2

D3

L1

L2

L3

L4

L5

a

S

24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

43.5 43.5 46.5 48.5 50.0 50.0 53.5 56.5 58.5 61.5 63.5 66.5 68.5 71.5 73.5 78.5 83.5 88.5 100.0 105.0 110.0 115.0 120.0 125.0

60.0 60.0 60.0 63.0 65.0 65.0 68.0 73.0 73.0 78.0 79.0 82.0 85.0 88.0 90.0 98.0 103.0 118.0 123.0 128.0 133.0 138.0 143.0 148.0

104.0 104.0 104.0 104.0 104.0 104.0 115.0 125.0 125.0 133.0 140.0 140.0 140.0 150.0 150.0 160.0 165.0 180.0 190.0 190.0 220.0 220.0 220.0 220.0

38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 36.0 36.0 36.0 36.0 36.0 36.0

19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 26.0 26.0 26.0 26.0 26.0 26.0

22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 23.0 23.0 23.0 23.0 23.0 23.0

38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 38.0 – – – – – – – –

32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 37.0 37.0 48.0 48.0 48.0 52.0 52.0 52.0

62.0 62.0 62.0 65.0 67.0 67.0 70.0 75.0 75.0 80.0 81.0 84.0 87.0 90.0 92.0 100.0 105.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0

12.5 12.5 12.5 12.5 12.5 12.5 12.5 14.7 14.7 14.7 14.7 14.7 14.7 17.5 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5 21.5

DEPAC_Katalog_engl.indd 37

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

D1

D2

D3

L1

L2

L3

L4

L5

a

S

1.713 1.831 1.988 2.106 2.224 2.382 2.500 2.618 2.697 2.815 3.012 3.091 3.209 3.406 3.484 3.858 3.937 4.134 4.252 4.331 4.528 4.606 4.724 4.921 4.921

2.362 2.362 2.559 2.677 2.874 3.071 3.110 3.228 3.346 3.465 3.661 3.858 3.976 4.252 4.646 4.764 4.843 5.039 5.157 5.236 5.433 5.512 5.630 5.827 5.827

4.094 4.094 4.094 4.528 4.921 5.236 5.512 5.512 5.512 5.906 6.102 6.299 6.469 6.693 7.087 7.480 7.480 7.480 8.661 8.661 8.661 8.661 8.661 8.661 8.661

1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.417 1.417 1.417 1.417 1.417 1.417 1.417 1.417 1.417 1.417

0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 1.024 1.024 1.024 1.024 1.024 1.024 1.024 1.024 1.024 1.024

0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.906 0.906 0.906 0.906 0.906 0.906 0.906 0.906 0.906 0.906

1.142 1.142 1.142 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.457 1.457 1.457 1.457 1.457 1.890 1.890 1.890 1.890 1.890 2.047 2.047 2.047 2.047 2.047

1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.457 1.457 1.457 1.890 1.890 1.890 1.890 1.890 2.047 2.047 2.047 2.047 2.047

2.441 2.441 2.638 2.756 2.953 3.150 3.189 3.307 3.425 3.543 3.740 3.937 4.055 4.331 4.724 4.843 4.921 5.118 5.236 5.315 5.512 5.591 5.709 5.906 5.906

0.492 0.492 0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846 0.846

17.11.2010 11:23:47 Uhr

38 TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Temperature – Elastomer dependent Speed – 35 m/sec. (7000 FPM) Sizes Dshaft – 24.....100 mm – 1“.....4“ Materials Metals

– DIN 1.4571, 316 SS, Hastelloy C Springs – Hastelloy C Faces – CA, CE, SC, SSIC, TC O-Rings – FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

Welded bellows – AM 350, Hastelloy C Rolled bellows – Hast. C, Incolloy

DEPAC ADVANTAGES ●●Glands with 1/4” NPT connections for axial flush and QUENCH ●●Shock and vibration dampened secondary face ●●Springs outside the media ●●Direction of rotation independent

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

From the wide range of cartridge seals, DEPAC offers a series of O-Ring, rolled bellow and metal bellow seals which all have 1/4” NPT flush and quench connections integrated into the gland.

TYPE 301 ●●O-Ring design ●●Extremely short length ●●Fits tight SB of 7.94 mm (5/16”) cross sections

All designs can be delivered with standard DEPAC glands or variations for large seal chamber dimensions.

Also, in this series, the precision investment casting process of the glands offer not only excellent surface finish but also most economical sales prices.

TYPE 309 ●●Rolled bellows design ●●Alternative with PTFE O-Rings

DEPAC_Katalog_engl.indd 38

17.11.2010 11:23:50 Uhr

STATIONARY

CARTRIDGES Axial flushing, Quench

balanced

39 TYPE 311 ●●Welded bellows design ●●Alternative with PTFE O-Rings

PLEASE NOTE In some exceptionally small pump designs, only very small SB cross sections are available. Therefore, it is essential to compare D1 with the relevant pump dimensions.

The distance D1, D3 to the SB-ID should be no less than approximately 1 mm (0.039”) in the radius.

Glands ●●Standard – For conventional SB diameters ●●Large – as alternative for large seal chamber dimensions

MM

INCH

DS

D1

D2

D3

D4

L1

L2

L3

L4

L5

a

S

B

24 25 28 30 32 33 35 38 40 42 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

40.0 40.0 43.0 45.0 47.0 47.0 50.0 53.0 55.0 57.0 58.0 60.0 63.0 65.0 68.0 70.0 75.0 80.0 85.0 95.0 100.0 105.0 110.0 115.0 120.0

60.0 60.0 60.0 63.0 65.0 65.0 68.0 73.0 73.0 78.0 78.0 80.0 80.0 85.0 88.0 90.0 98.0 103.0 118.0 123.0 128.0 133.0 138.0 143.0 148.0

43.5 43.5 46.5 48.5 50.0 50.0 53.5 56.5 58.5 60.5 61.5 63.5 66.5 68.5 71.5 73.5 78.5 83.5 88.5 100.0 105.0 110.0 115.0 120.0 125.0

104.0 104.0 104.0 104.0 104.0 104.0 110.0 125.0 125.0 133.0 133.0 140.0 140.0 140.0 150.0 150.0 160.0 165.0 180.0 190.0 190.0 220.0 220.0 220.0 220.0

48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 48.0 54.0 54.0 54.0 54.0 54.0 54.0

9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 8.0 8.0 8.0 8.0 8.0 8.0

24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0 38.5 38.5 38.5 38.5 38.5 38.5

19.0 19.0 19.0 19.0 19.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 24.0 27.0 27.0 27.0 30.0 30.0 30.0 34.0 34.0 34.0

22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 27.0 27.0 30.0 30.0 30.0 34.0 34.0 34.0

62.0 62.0 62.0 67.0 67.0 67.0 70.0 75.0 75.0 80.0 80.0 82.0 82.0 87.0 92.0 92.0 100.0 105.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0

12.5 12.5 12.5 12.5 12.5 12.5 12.5 14.7 14.7 14.7 14.7 14.7 14.7 14.7 17.5 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5 21.5

– – – – – – – 115.0 115.0 125.0 125.0 130.0 130.0 130.0 140.0 140.0 145.0 150.0 160.0 170.0 170.0 195.0 195.0 195.0 195.0

DEPAC_Katalog_engl.indd 39

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

D1

D2

D3

D4

L1

L2

L3

L4

L5

a

S

B

1.575 1.693 1.850 1.969 2.087 2.244 2.362 2.480 2.559 2.677 2.874 2.953 3.071 3.268 3.346 3.661 3.740 3.937 4.055 4.134 4.331 4.409 4.528 4.724 4.724

2.362 2.362 2.559 2.677 2.874 3.071 3.150 3.150 3.346 3.465 3.858 3.858 3.976 4.646 4.646 4.764 4.843 5.039 5.157 5.236 5.433 5.512 5.630 5.827 5.827

1.713 1.831 1.988 2.106 2.224 2.382 2.500 2.618 2.697 2.815 3.012 3.091 3.209 3.406 3.484 3.858 3.937 4.134 4.252 4.331 4.528 4.606 4.724 4.921 4.921

4.094 4.094 4.094 4.331 4.921 5.236 5.512 5.512 5.512 5.906 6.102 6.299 6.469 6.693 7.087 7.480 7.480 7.480 8.661 8.661 8.661 8.661 8.661 8.661 8.661

1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 1.890 2.126 2.126 2.126 2.126 2.126 2.126 2.126 2.126 2.126 2.126

0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.354 0.315 0.315 0.315 0.315 0.315 0.315 0.315 0.315 0.315 0.315

0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 0.945 1.516 1.516 1.516 1.516 1.516 1.516 1.516 1.516 1.516 1.516

0.748 0.748 0.748 0.866 0.866 0.866 0.866 0.866 0.866 0.866 1.063 1.063 1.063 1.063 1.063 1.181 1.181 1.181 1.181 1.181 1.339 1.339 1.339 1.339 1.339

0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 0.866 1.063 1.063 1.063 1.181 1.181 1.181 1.181 1.181 1.339 1.339 1.339 1.339 1.339

2.441 2.441 2.638 2.756 2.953 3.150 3.228 3.228 3.425 3.622 3.937 3.937 4.055 4.724 4.724 4.843 4.921 5.118 5.236 5.315 5.512 5.591 5.709 5.906 5.906

0.492 0.492 0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846 0.846

4.094 4.094 4.094 4.528 4.528 4.921 5.118 5.118 5.118 5.512 5.709 5.709 5.906 6.299 6.299 6.693 6.693 6.693 7.677 7.677 7.677 7.677 7.677 7.677 7.677

17.11.2010 11:23:52 Uhr

40 TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Temperature – Elastomer dependent Speed – 25 m/sec. (5000 FPM) Sizes Dshaft – 24.....100 mm – 1“.....4“ Materials Metals

– DIN 1.4571, 316 SS, Hastelloy C Springs – Hastelloy C Faces – CA, CE, SC, SSIC, TC O-Rings – FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

Welded bellows – Hastelloy C Rolled bellows – Hast. C, Incolloy

DEPAC ADVANTAGES ●●Adjustable “safety” seal ●●Cartridge design ●●Stationary design ●●Design variations with O-Ring, metal or rolled bellows ●●Pressure balanced ●●Gland – alternatives – Standard gland with or without special connections – Gland with 1/4” NPT flush and quench connections – Gland for large stuffing box dimensions (ANSI)

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

No mechanical seal lasts forever. To increase sealing reliability sometimes double seals have been installed. However, double seals cannot be considered as “safety” seals, since both seals are installed at the same time and thus have the same running time. No manufacturer can guarantee that the second seal will hold after the first one has failed.

TYPE 270 P ●●O-Ring design ●●Alternatives – Welded bellows TYPE 296 P – Rolled bellows TYPE 299 P

Even the “Disaster Bushings” required by the oil industry (API) offer no leakage protection after a seal failure.

Through controllable leakage, DEPAC’s safety seals guarantee a high level of process safety even after a possible seal failure. The emergency seal can be adjusted to an acceptable leakage rate and operated until the next planned shut down. In extreme conditions, where a double seal is required, an additional safety seal can be offered as well.

TYPE 301 P ●●Gland with 1/4” NPT flush and quench connections

The extra charge for a DEPAC safety seal has no relation to the costs occurred due to an unscheduled production shut down!

DEPAC_Katalog_engl.indd 40

17.11.2010 11:23:56 Uhr

STATIONARY

CARTRIDGES Safety seals

balanced

41 TYPE 309 P

PLEASE NOTE In some pumps, only a very short free length is available from the SB face to the bearing housing. Therefore, it is essential to compare L1 and L4 with the related pump dimensions.

●●Rolled bellows design ●●Alternative welded bellows Type 311 P

The distance D1, D2 to the SB-ID should be no less than approximately 1 mm (0,039”) in the radius.

Alternative designs with larger packing cross sections and/or packing rings are available on request as specials.

Double cartridge seals incorporating this special DEPAC safety feature are available as well.

Glands

For additional protection against wear on the seal sleeve a hard chrome plating of the sleeve is also possible.

MM

MM

INCH

DS

D1

D2

D3

D4

L7

a

S

24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

44.7 44.7 47.7 49.7 50.9 50.9 54.7 57.7 59.7 62.7 64.7 67.7 69.7 72.7 74.7 79.7 84.7 89.7 102.8 107.8 112.8 117.8 122.8 127.8

43.5 43.5 46.5 48.5 50 50 53.5 56.5 58.5 61.5 63.5 66.5 68.5 71.5 73.5 78.5 83.5 88.5 100 105 110 115 120 125

65 65 68 70 72 72 75 80 82 85 87 90 92 95 97 102 107 118 123 128 135 140 145 150

104 104 104 104 104 104 115 125 125 133 140 140 140 150 150 160 165 180 190 190 220 220 220 220

29 29 29 29 29 32 32 32 32 32 32 32 32 32 32 32 37 37 40 40 40 44 44 44

67 67 70 72 74 74 77 82 84 87 89 92 94 97 99 104 109 120 125 130 137 142 147 152

12.5 12.5 12.5 12.5 12.5 12.5 12.5 14.7 14.7 14.7 14.7 14.7 14.7 17.5 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5 21.5

DEPAC_Katalog_engl.indd 41

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

D1

D2

D3

D4

L7

a

S

1.760 1.878 2.004 2.154 2.272 2.429 2.547 2.665 2.744 2.862 3.020 3.138 3.256 3.413 3.531 3.969 4.047 4.244 4.362 4.441 4.638 4.717 4.835 5.031 5.031

1.713 1.831 1.969 2.106 2.224 2.421 2.500 2.618 2.697 2.815 2.972 3.091 3.209 3.366 3.484 3.858 3.937 4.134 4.252 4.331 4.528 4.606 4.724 4.921 4.921

2.559 2.677 2.835 2.953 3.150 3.346 3.425 3.543 3.622 3.740 3.897 4.016 4.213 4.646 4.646 4.843 4.843 5.039 5.315 5.315 5.512 5.709 5.709 5.906 5.906

4.094 4.094 4.094 4.528 4.921 5.236 5.512 5.512 5.512 5.906 6.299 6.299 6.496 7.087 7.087 7.480 7.480 7.480 8.661 8.661 8.661 8.661 8.661 8.661 8.661

1.142 1.142 1.142 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.457 1.457 1.457 1.575 1.575 1.575 1.575 1.575 1.732 1.732 1.732 1.732 1.732

2.638 2.756 2.913 3.031 3.228 3.425 3.504 3.622 3.701 3.819 3.976 4.094 4.291 4.724 4.724 4.921 4.921 5.118 5.394 5.394 5.591 5.787 5.787 5.984 5.984

0.492 0.492 0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846 0.846

DS 24 – 70 75 – 100

L1

L2

L3

L4

L5

L6

45 50

28.5 34

19 22

56.5 61

17 23

28 30

L1

L2

L3

L4

L5

L6

INCH DS

1 – 2 3/4 1.772 1.122 0.748 2.224 0.669 1.102 2 7/8 – 4 1.969 1.339 0.866 2.402 0.906 1.181

17.11.2010 11:23:58 Uhr

42 TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Pressure table atmosphere = 0 bar (0 PSI) Medium pressure *28 bar (420 PSI) 28 bar (420 PSI) 0

Barrier pressure 0 28 bar (420 PSI) 28 bar (420 PSI)

* only for lubricating liquids

Temperature Speed Sizes Dshaft Materials Metals Springs Faces O-Rings

– Elastomer dependent – 35 m/sec. (7000 FPM) – 24 ..... 100 mm – 1“ ...... 4“ – DIN 1.4571, 316 SS, Hastelloy C – Hastelloy C – CA, CE, SC, SSIC, TC – FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

DEPAC ADVANTAGES ●●Double pressure balanced Full pressure rating possible at medium side as well as within barrier chamber ●●Automatic closing by pressure reversal ●●Tandem active ●●Barrier space with patented pump design ●●Barrier fluid shrouds ●●Adjustable 1/4” NPT connection adapters available ●●Manual barrier fluid venting

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

With the use of cartridge seals most installation difficulties, especially with the many seal components of double seals, can be avoided. No more surprises of negative leak tests after the seal is installed in the equipment. The cartridge is assembled in the factory or workshop and can be tested for leakage, before it is installed in the equipment.

Attention should always be given to ensure that tandem or tandem active double seals are used. With this installation system, the medium to be sealed will be thrown away from the inner seal faces by the centrifugal force of the shaft. The faces stay as clean as possible.

The DEPAC double seal designs have tandem action and, with their stationary design, guarantee utmost reliability for operating and service life.

DEPAC_Katalog_engl.indd 42

TYPE 321 ●●A development out of DEPAC’s long standing technology of stationary double cartridge seals

TYPE 322

●●Barrier ● space with patented pump design possible ●●Barrier fluid shroud ●●322 Z for small stuffing box cross sections Dshaft 1“ – 1 3/8“

17.11.2010 11:24:01 Uhr

STATIONARY

DOUBLE CARTRIDGE Modular system

Double pressure balanced

43 TYPE 323

PLEASE NOTE For smaller SB cross sections Type 322 are usually used.

●●Barrier space with patented pump design possible ●●Barrier fluid shrouds under inner and If, however, adequate SB cross sections outer faces are available Type 323 would be recommended as a standard seal.

Standard glands for sizes up to Ø 70 mm (2 3/4”) are available in an economy version. Above Ø 70 mm (2 3/4”) the glands are round.

Glands INCH TYPE 322 Z DS

D3

D5

1 2.047 4.134 1 1/8 2.165 4.134 1 1/4 2.323 4.134 1 3/8 2.441 4.528

D7

a1

s1

1.625 1.750 1.875 2.000

2.362 2.362 2.362 2.638

0.492 0.492 0.492 0.492

INCH

MM

DS

L1

1 – 2 7/8 3–4

MM

To avoid axial movement of seal parts on the shaft/sleeve under pressure conditions at or above 15 bar (225 PSI), DEPAC recommends drilling the shaft/ sleeve where the set screws are to be tightened.

L2

L3

L4

2.126 1.378 0.945 1.969 2.283 1.535 0.984 2.126

DS

L1

L2

L3

L4

24 – 70 75 – 100

54.0 58.0

35.0 39.0

24.0 25.0

50.0 54.0

INCH

DS

D1

D2

D3

D4

D5

D6

D7

a1

a2

s1

s2

24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

44.7 44.7 47.7 49.7 50.9 50.9 54.7 57.7 59.7 62.7 64.7 67.7 69.7 72.7 74.7 79.7 84.7 89.7 102.8 107.8 112.8 117.8 122.8 127.8

47.0 47.0 50.0 52.0 54.0 55.0 57.0 60.0 62.0 65.0 67.0 70.0 72.0 75.0 77.0 82.0 87.0 92.0 103.0 108.0 113.0 118.0 123.0 128.0

52.0 52.0 55.0 57.0 60.0 60.0 62.0 65.0 67.0 70.0 72.0 75.0 77.0 80.0 82.0 87.0 92.0 97.0 108.0 113.0 118.0 123.0 128.0 133.0

49.7 49.7 52.7 54.7 57.7 57.7 59.7 62.7 64.7 67.7 69.7 72.7 74.7 77.7 79.7 84.7 89.7 94.7 107.8 112.8 117.8 122.8 127.8 132.8

105.0 105.0 105.0 105.0 105.0 105.0 115.0 130.0 130.0 140.0 140.0 140.0 140.0 150.0 150.0 160.0 160.0 180.0 190.0 190.0 220.0 220.0 220.0 220.0

115.0 115.0 115.0 115.0 130.0 130.0 130.0 140.0 140.0 140.0 140.0 150.0 150.0 150.0 160.0 160.0 180.0 180.0 190.0 220.0 220.0 220.0 220.0 240.0

44.7 44.7 47.7 49.7 50.9 50.9 54.7 57.7 59.7 62.7 64.7 67.7 69.7 72.7 74.7 79.7 84.7 89.7 102.8 107.8 112.8 117.8 122.8 127.8

60.0 60.0 60.0 60.0 60.0 60.0 67.0 75.0 75.0 82.0 82.0 82.0 82.0 92.0 92.0 100.0 100.0 112.0 125.0 130.0 135.0 140.0 145.0 150.0

67.0 67.0 67.0 67.0 75.0 75.0 75.0 82.0 82.0 82.0 82.0 92.0 92.0 92.0 100.0 100.0 112.0 112.0 130.0 135.0 140.0 145.0 150.0 155.0

12.5 12.5 12.5 12.5 12.5 12.5 12.5 14.7 14.7 14.7 14.7 14.7 14.7 17.5 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5 21.5

12.5 12.5 12.5 12.5 14.7 14.7 14.7 14.7 14.7 14.7 14.7 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5 21.5

DEPAC_Katalog_engl.indd 43

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8

D1

D2

D3

D4

D5

D6

D7

a1

a2

s1

s2

1.760 1.878 2.004 2.154 2.272 2.429 2.547 2.665 2.744 2.862 3.020 3.138 3.256 3.413 3.531 3.969 4.047 4.244 4.362 4.441 4.638 4.717 4.835 5.031 5.031

1.850 1.969 2.126 2.244 2.362 2.520 2.638 2.756 2.835 2.953 3.110 3.228 3.346 3.504 3.622 3.976 4.055 4.252 4.370 4.449 4.646 4.724 4.843 5.039 5.039

2.047 2.165 2.323 2.441 2.559 2.717 2.835 2.953 3.031 3.150 3.307 3.425 3.543 3.701 3.819 4.173 4.252 4.449 4.567 4.646 4.843 4.921 5.039 5.236 5.236

1.957 2.075 2.232 2.350 2.469 2.626 2.744 2.862 2.941 3.059 3.217 3.335 3.453 3.610 3.728 4.165 4.244 4.441 4.559 4.638 4.835 4.913 5.031 5.228 5.228

4.134 4.134 4.134 4.528 5.118 5.512 5.512 5.512 5.512 5.906 5.906 6.299 6.299 7.087 7.087 7.480 7.480 7.480 7.480 8.661 8.661 8.661 8.661 8.661 8.661

4.528 4.528 5.118 5.118 5.512 5.512 5.512 5.906 5.906 5.906 6.299 6.299 7.087 7.087 7.087 7.480 7.480 8.661 8.661 8.661 8.661 8.661 8.661 9.449 9.449

1.760 1.878 2.004 2.154 2.250 2.375 2.500 2.625 2.750 2.875 3.000 3.125 3.250 3.625 3.750 3.875 4.000 4.125 4.250 4.375 4.500 4.625 4.750 4.875 5.000

2.362 2.362 2.362 2.638 2.953 3.228 3.228 3.228 3.228 3.622 3.622 3.937 3.937 4.409 4.409 4.843 4.921 5.118 5.236 5.315 5.512 5.591 5.709 5.906 5.906

2.638 2.638 2.953 2.953 3.228 3.228 3.228 3.622 3.622 3.622 3.937 3.937 4.409 4.409 4.409 5.039 5.118 5.315 5.433 5.512 5.709 5.787 5.906 6.102 6.102

0.492 0.492 0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846

0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846 0.846

17.11.2010 11:24:04 Uhr

44 DEPAC ADVANTAGES

TECHNICAL DATA Range of application Pressure – 700 mm Hg – 12 bar Temperature – Elastomer dependent Speed – Dependent on pressure Sizes Dshaft – 50......140 mm

– 2“.......5 1/2“

– Special production up to 330 mm (12“) Materials Metals Springs Faces O-Rings

●●Stationary design principle ●●No dismantling of equipment necessary ●●Easy conversion from packing to mechanical seal ●●Straight-forward installation ●●Reliable use even with media containing solid materials

– DIN 1.4571, 316 SS – Hastelloy C – CA, SC – FPM, EPDM

●●Short axial dimension design ●●High operational reliability

THIS IS CONVINCING!

This new, split mechanical seal proves once again that the DEPAC business and product philosophy is focused on providing benefits for its customers.

1

Perfect technology, high reliability and the lowest possible purchasing and operating costs are paramount.

Equipment fitted with split mechanical seals works without leakage and does not have to be dismantled in order to replace the seal or its parts.

Production losses and expensive, timeconsuming maintenance are avoided. This applies in particular for large and complicated machines.

The higher price of a reliably working, split mechanical seal stands in no relation to the potential expense of installing a non-split mechanical seal!

DEPAC_Katalog_engl.indd 44

2

3

4

Large empty space above the seal faces. Solid matter is flung outwards off the faces by the centrifugal force.

Special pins for holding back the springs. The springs do not pressurize the seal faces until after the pins are removed when the installation work is finished.

O-rings with integrated connection pins. An absolute innovation for split mechanical seals. Installation is made safer and easier as the result.

Housing centering elements.

Another innovation which makes installation extremely easy because the pins do not need to be removed when the seal is fully installed.

17.11.2010 11:24:07 Uhr

STATIONARY

SPLIT SEAL

balanced

45 TYPE 390

PLEASE NOTE DEPAC’s latest development of the split mechanical seal is the ideal option for large and heavy-duty machines with rotating shafts which require sealing and for equipment which needs a great deal of work to change a mechanical seal.

●●Split seal ●●Stationary design ●●Fast, easy and reliable installation ●●Effective alternative for media with solid materials ●●Best sealing alternative for largescale units ●●Lowest contact pressure for the longest possible service life

Often there was no choice but to use packings on these machines, in spite of their known drawbacks. These were taken into the bargain because of the unjustifiably high cost of mechanical seal maintenance.

Glands

DEPAC’s new, split mechanical seal combines in optimum manner the advantages of a packing which is easy-to-change with those of a mechanical seal which is leak-free, optimized for life and operationally efficient.

Flush 1/4” NP

INCH DS

MM DS

D1

D2

D3

D4

L1

L3

a

s

50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140

70 75 80 85 90 102 107 112 117 122 127 132 137 142 147 152 157 162 167

85 90 98 103 118 123 128 133 138 143 148 153 158 163 168 173 178 183 188

70 75 80 85 90 99 104 109 114 119 124 129 134 139 144 149 154 159 164

140 150 160 165 180 190 190 220 220 220 220 240 240 240 240 260 260 260 260

38,5 | | | 38,5 46 | | | | | | | | | | | | 46

30,5 | | | 30,5 37,5 | | | | | | | | | | | | 37,5

87 92 100 105 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190

14,7 17,5 | | | | 17,5 21,5 | | | | | | | | | | 21,5

2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2

D1

D2

D3

D4

L1

L3

a

s

2,756 2,953 3,150 3,150 3,346 3,543 3,543 4,016 4,213 4,213 4,409 4,409 4,606 4,803 4,803 5,000 5,197 5,197 5,394 5,591 5,591 5,787 5,787 5,984 6,181 6,181 6,378 6,575 6,575

3,346 3,543 3,858 3,858 4,055 4,646 4,646 4,843 5,039 5,039 5,236 5,236 5,433 5,630 5,630 5,827 6,024 6,024 6,220 6,417 6,417 6,614 6,614 6,811 7,008 7,008 7,205 7,402 7,402

2,756 2,953 3,150 3,150 3,346 3,543 3,543 3,898 4,094 4,094 4,291 4,291 4,488 4,685 4,685 4,882 5,079 5,079 5,276 5,472 5,472 5,669 5,669 5,866 6,063 6,063 6,260 6,457 6,457

5,512 5,906 6,299 6,299 6,496 7,087 7,087 7,480 7,480 7,480 8,661 8,661 8,661 8,661 8,661 8,661 9,449 9,449 9,449 9,449 9,449 9,449 9,449 10,236 10,236 10,236 10,236 10,236 10,236

1,515 | | | | | 1,515 1,811 | | | | | | | | | | | | | | | | | | | | 1,811

1,201 | | | | | 1,201 1,476 | | | | | | | | | | | | | | | | | | | | 1,476

3,425 3,622 3,937 3,937 4,134 4,724 4,724 4,921 5,118 5,118 5,315 5,315 5,512 5,709 5,709 5,906 6,102 6,102 6,299 6,496 6,496 6,693 6,693 6,890 7,087 7,087 7,283 7,480 7,480

0,578 0,689 | | | | | | | 0,689 0,846 | | | | | | | | | | | | | | | | | 0,846

Other sizes, materials or design versions on request.

DEPAC_Katalog_engl.indd 45

17.11.2010 11:24:10 Uhr

46 TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Pressure table atmosphere = 0 bar (0 PSI) Medium pressure *28 bar (420 PSI) 28 bar (420 PSI) 0

Barrier pressure 0 28 bar (420 PSI) 28 bar (420 PSI)

* only for lubricating liquids

Temperature Speed

– Elastomer dependent – 35 m/sec. (7000 FPM)

Sizes Dshaft

– 1“ ...... 4“

Materials Metals Springs Faces O-Rings

– – – –

DIN 1.4571, 316 SS, Hastelloy C CA, CE, SC, SSIC, TC FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

DEPAC ADVANTAGES ●●Double pressure balanced Full pressure reversal possible on pump and barrier side ●●Automatic closing by pressure reversal ●●Tandem active ●●Direction of rotation independent ●●Shock and vibration dampened secondary faces ●●Springs outside the medium

Alternatives Metal bellows – Hastelloy C, AM 350 Rolled bellows – Hastelloy C, Incolloy

Other sizes, materials or design variations upon request.

TYPE 301 THIS IS CONVINCING!

The ANSI / ASME B73.1 M... divides seal chambers into 2 categories. For packings the use of a tight stuffing box is recommended and for seals a “big bore” seal chamber is recommended.

Many customers who are still using packing would like to change over to seals. For these applications DEPAC offers the standard seal Type 301. This seal will fit into the smallest standard stuffing boxes of 7,94 mm (5/16”) cross sections.

For the use of seals in “big bore” seal chambers, DEPAC offers a variety of seal design variations with O-Ring, welded bellows and rolled bellows. For further information on these designs please see the corresponding pages.

DEPAC_Katalog_engl.indd 46

●●Especially suitable for change over from packing to mechanical seal ●●O-Ring design ●●Extremely short installation length ●●1/4” NPT flush and quench connections ●●To fit SB of 7,94 mm (5/16”) cross sections For measurements see page 38/39

TYPE 270 ANSI ●●Single seal ●●For “big bore” seal chambers

17.11.2010 11:24:13 Uhr

ANSI/ASME B73.1 M...

Cartridges

STATIONARY

Double pressure balanced

47 TYPE 301 ANSI

PLEASE NOTE The seal Types shown have been developed especially for the large “big bore” seal chambers. These seals are also available in welded bellows and rolled bellows design.

●●Single seal ●●For “big bore” seal chamber ●●With 1/4” NPT flush and quench connections

For the use of cartridge seals in existing pumps of older designs, or for the change over from packing to seals, please compare the previously described standard DEPAC Types 301, 322 and 322 Z. The description and technical details are on pages 38–39 and 42–43.

TYPE 323 ANSI ●●Double seal ●●Double pressure balanced ●●Sleeves with pumping screw ●●Barrier fluid shrouds under inner and outer seal faces

INCH DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4

Glands

INCH

DEPAC_Katalog_engl.indd 47

D1

D2

D3

1.713 3.189 1.957 1/8 1.831 3.189 2.075 1/4 1.988 3.465 2.272 3/8 2.106 3.465 2.350 1/2 2.224 3.622 2.469 5/8 2.382 3.780 2.626 3/4 2.500 3.780 2.744 7/8 2.618 3.780 2.862 2.697 3.780 2.941 1/8 2.815 4.252 3.059 1/4 3.012 4.843 3.217 3/8 3.091 4.843 3.335 1/2 3.209 4.843 3.453 5/8 3.406 5.039 3.610 3/4 3.484 5.039 3.728 7/8 3.858 5.630 4.165 3.937 5.630 4.244 1/8 4.134 5.827 4.441 1/4 4.252 6.024 4.559 3/8 4.331 6.024 4.638 1/2 4.528 6.220 4.835 5/8 4.606 6.220 4.913 3/4 4.724 6.417 5.031 7/8 4.921 6.614 5.228 4.921 6.614 5.228

D4

a

s

4.724 4.724 5.118 5.118 5.709 6.102 6.102 6.102 6.102 6.496 7.480 7.480 7.480 7.874 7.874 8.661 8.661 8.661 9.449 9.449 9.449 9.449 10.236 10.236 10.236

3.268 3.268 3.543 3.543 3.701 3.858 3.858 3.858 3.858 4.331 4.921 4.921 4.921 5.118 5.118 5.709 5.709 5.906 6.102 6.102 6.299 6.299 6.496 6.693 6.693

0.492 0.492 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846

DS

L1

L2

L3

L4

L5

L6

L7

L8

L9

1 – 2 3/4 2 7/8 – 4

1.496 1.417

0.748 1.024

0.866 0.906

1.575 1.693

0.669 0.748

1.063 1.181

1.969 2.146

1.378 1.515

0.945 0.984

17.11.2010 11:24:16 Uhr

48 TECHNICAL DATA Range of application Pressure Temperature Speed Sizes Dshaft Materials Metals Springs Faces O-Rings

– – – –

700 mm Hg 40 bar (600 PSI) Elastomer dependent 35 m/sec. (7000 FPM)

– 20......110 mm – – – –

DIN 1.4571/ 316 SS Hastelloy C CA, SC, SSIC, TC (Ni) FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

Alternatives Welded bellows – Hastelloy C Rolled bellows – Hastelloy C, Incolloy

DEPAC ADVANTAGES ●●Cartridge mounted ●●Stationary design ●●Pressure balanced TYPE 380 ●●Double pressure balanced TYPE 385 ●●Full pressure reversal on pump and barrier fluid side possible ●●Automatic closing by pressure reversal ●●Tandem active ●●Direction of rotation independent ●●Shock and vibration dampened secondary faces ●●Springs outside the medium

TYPE 380

Single seal ●●Pressure balanced ●●“Floating” disaster bushing

DEPAC_Katalog_engl.indd 48

17.11.2010 11:24:18 Uhr

API 610/682 CARTRIDGES

49 TYPE 385

THIS IS CONVINCING!

Double seal ●●Barrier space with patented pump design ●●Tandem active ●●“Floating” disaster bushing ●●Double pressure balanced ●●Barrier fluid shrouds under the inner and outer seal faces

The petroleum industry has a large variety of applications from water to highly volatile hydrocarbons, from chemicals to acids and alkali’s.

For all of these applications DEPAC offers a complete seal range with O-Ring, welded- and rolled bellows designs.

Applications and seal requirements can, in accordance with API, be discussed and agreed upon together with the customer.

API specifies certain test procedures and inspections that a seal manufacturer should take into account. Please contact DEPAC for consultation if this is required.

BI

–

Barrier fluid IN

1/2“ NPT

BO

–

Barrier fluid OUT

1/2“ NPT

D

–

Drain

3/8“ NPT

F

–

Flush

1/2“ NPT

Q

–

Quench

3/8“ NPT

MM/INCH DS

D1

D2

20 / 30 / 40 / 1.575 50 / 1.968 60 / 2.362 70 / 2.756 80 / 3.150 90 / 3.543 100 / 3.937 110 / 4.331

38 / 1.496 48 / 1.890 58 / 2.283 68 / 2.677 78 / 3.071 88 / 3.465 98 / 3.858 108 / 4.252 118 / 4.646 128 / 5.039

59 / 2.323 69 / 2.717 79 / 3.110 89 / 3.504 99 / 3.898 109 / 4.291 119 / 4.685 129 / 5.079 139 / 5.472 149 / 5.866

DEPAC_Katalog_engl.indd 49

D3

D4

69.5 / 2.736 135 / 5.315 79.5 / 3.130 145 / 5.709 89.5 / 3.524 155 / 6.102 99.5 / 3.917 175 / 6.890 119.5 / 4.705 195 / 7.677 129.5 / 5.098 205 / 8.071 139.5 / 5.492 215 / 8.465 159.5 / 6.280 290 / 11.417 169.5 / 6.673 300 / 11.811 179.5 / 7.067 310 / 12.205

D5

L1

L2

L3

L4

L5

a

S

63 / 2.480 73 / 2.784 83 / 3.268 93 / 3.661 103 / 4.055 113 / 4.449 123 / 4.843 133 / 5.236 143 / 5.630 153 / 6.024

60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362 60 / 2.362

33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299 33 / 1.299

35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378 35 / 1.378

99 / 3.898 99 / 3.898 99 / 3.898 105 / 4.134 105 / 4.134 105 / 4.134 105 / 4.134 115 / 4.528 115 / 4.528 115 / 4.528

63 / 2.480 63 / 2.480 63 / 2.480 68 / 2.677 68 / 2.677 68 / 2.677 68 / 2.677 78 / 3.071 78 / 3.071 78 / 3.071

88 / 3.465 98 / 3.858 108 / 4.252 120 / 4.724 140 / 5.512 150 / 5.906 160 / 6.299 180 / 7.087 190 / 7.480 200 / 7.874

13 / 0.512 13 / 0.512 13 / 0.512 17 / 0.669 17 / 0.669 17 / 0.669 17 / 0.669 21 / 0.827 21 / 0.827 21 / 0.827

17.11.2010 11:24:19 Uhr

POWER PLANTS

50 DEPAC SPECIAL SEALS for the power plant industry Application In coal fired power plants the cleaning (washing) of exhaust gas takes place in flue gas de-sulphurization plants. Within this process lime milk is used that naturally has to be pumped within the process system. The sealing of these liquids is most difficult and presents great demands on the seals.

Problem definition Special difficulties arise when mechanical seals are fitted into pumps that are connected to large tanks used for lime milk preparation or reconditioning.

A pump shut down has to be avoided under any circumstance since it can result in a total plant shut down. For this reason seals must have a safety seal, standstill seal, which can be activated at seal failure or time of seal replacement.

The DEPAC solution Type 370-S-60 The seal shown is a double seal design that incorporates bearings according to the standard DEPAC Type 370. It also includes an additional, in series, safety standstill seal.

In addition to the safety standstill seal there is also an O-Ring loaded seal face on the product side. This achieves a rough pre-sealing that is independent from �abnormal“ radial shaft movements.

DEPAC_Katalog_engl.indd 50

17.11.2010 11:24:25 Uhr

Mechanical Seals for Agitators, Mixers, Fermenters, Filters, Reactors

51 Type

Page

326, 365

52 – 53

370 372 371 373

54 – 55

Double Cartridges Stationary, double pressure balanced ”Floating” design

Mechanical seals with modular system Double Single

DEPAC_Katalog_engl.indd 51

– with bearing – without bearing – with bearing – without bearing

17.11.2010 11:24:26 Uhr

52 TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Pressure table atmosphere = 0 bar (0 PSI) Medium pressure *28 bar (420 PSI) 28 bar (420 PSI) 0

Barrier pressure 0 28 bar (420 PSI) 28 bar (420 PSI)

* only for lubricating liquids

Temperature – Elastomer dependent Speed – 25 m/sec. (5000 FPM) Sizes Dshaft Materials Metals Springs Faces O-Rings

– 24 ..... 200 mm – 1” ...... 7 1/2 – – – –

DIN 1.4571, 316 SS Hastelloy C CA, CE, SC, SSIC, TC FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

DEPAC ADVANTAGES ●●Extreme motion tolerances of up to 6 mm (0,25”) axial, radial and oscillating ●●Manual venting possibility ●●Full pressure reversal possible ●●Automatic closing by pressure reversal ●●Double pressure balanced ●●Shock and vibration dampened secondary faces ●●Axial and radial 1/4” NPT barrier fluid connections

Other sizes, materials or design variations upon request.

THIS IS CONVINCING!

Especially with exceptionally large pumps, agitators, mixers, autoclaves, filters, colanders, fermenters and similar equipment with large shafts, the shafts tend to have considerable deflections.

This applies to axial, radial and angular movements.

TYPE 326 ●●Motion tolerances Axial ± 2 mm (0,08”) Radial ± 1 mm (0,04”) ●●Manual venting possible ●●floating design

Standard seals cannot handle these extreme conditions.

In the past, additional bearings have often been integrated in the seal to stabilize the shafts. These designs are not only significantly more expensive, but will also fail immediately if the bearings are damaged due to wear or overload.

DEPAC offers new seal designs with “floating” faces, which will absorb the extreme movement transferred to the seal and will keep the face loading constant, independent from the shaft movements.

The reliability of these seal applications have therefore improved drastically.

DEPAC_Katalog_engl.indd 52

17.11.2010 11:24:28 Uhr

STATIONARY

DOUBLE CARTRIDGES “Floating” Design

Double pressure balanced

53 TYPE 365

MM TYPE 325

●●Motion tolerances Axial and radial ± 2,5 mm (0,098”) ●●Manual venting possible ●●floating design

PLEASE NOTE For special applications, for differences in shaft measurements and motion capabilities, other seal variations are available upon request.

MM TYPE 326

INCH TYPE 326

DS

D1

D2

D3

L1

L2

L3

a1

s1

24 25 28 30 32 33 35 38 40 42 43 45 48 50 53 55 60 65 70 75 80 85 90 95 100

45.7 45.7 48.7 50.7 52.7 53.7 55.7 58.7 60.7 62.7 63.7 65.7 68.7 70.7 73.7 75.7 80.7 85.7 90.7 102.8 107.8 112.8 117.8 122.8 127.8

47 47 50 52 54 55 57 60 62 64 65 67 70 72 75 77 82 87 92 103 108 113 118 123 128

105 105 105 115 115 115 115 130 130 140 140 140 140 140 150 150 160 160 180 190 190 220 220 220 220

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 58.4 58.4 58.4 58.4 58.4 58.4

33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 38.6 38.6 38.6 38.6 38.6 38.6

24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 25.5 25.5 25.5 25.5 25.5 25.5

60 60 60 67 67 67 67 75 75 82 82 82 82 82 92 92 100 100 112 125 130 135 140 145 150

13 13 13 13 13 13 13 15 15 15 15 15 15 15 18 18 18 18 18 18 18 22 22 22 22

DEPAC_Katalog_engl.indd 53

DS 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8

DS

D4

D5

D6

a2

s2

50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200

95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240 245

89 94 99 104 109 114 119 124 129 134 139 144 149 154 159 164 169 174 179 184 189 194 199 204 209 214 219 224 229 234 239

180 185 190 195 200 205 210 215 220 225 230 235 240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 325 330

113 118 123 128 133 138 143 148 153 158 163 168 173 178 183 188 193 198 203 208 213 218 223 228 233 238 243 248 253 258 263

17.5 17.5 17.5 17.5 17.5 17.5 17.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5 21.5

INCH TYPE 325

D1

D2

D3

L1

L2

L3

a1

s1

1.799 1.917 2.075 2.193 2.311 2.469 2.587 2.705 2.783 2.902 3.059 3.177 3.295 3.453 3.571 3.969 4.047 4.244 4.362 4.441

1.850 1.969 2.126 2.244 2.362 2.520 2.638 2.756 2.835 2.953 3.110 3.228 3.346 3.504 3.622 3.976 4.055 4.252 4.370 4.449

4.134 4.134 4.528 4.528 5.118 5.512 5.512 5.512 5.512 5.906 5.906 6.299 6.299 7.087 7.087 7.480 7.480 7.480 7.480 8.661

2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.205 2.229 2.229 2.229 2.229 2.229

1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.520 1.520 1.520 1.520 1.520

0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 0.965 1.004 1.004 1.004 1.004 1.004

2.362 2.362 2.638 2.638 2.953 3.228 3.228 3.228 3.228 3.622 3.622 3.937 3.937 4.409 4.409 4.843 4.921 5.118 5.236 5.315

0.492 0.492 0.492 0.492 0.579 0.579 0.579 0.579 0.579 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846

DS 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7

1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1/4 1/2 3/4 1/4 1/2 3/4 1/4 1/2 3/4 1/4 1/2

D4

D5

D6

a2

s2

3.937 3.937 4.134 4.134 4.331 4.528 4.528 4.724 4.921 4.921 5.118 5.315 5.315 5.512 5.512 5.709 5.906 6.102 6.299 6.693 6.890 7.087 7.283 7.677 7.874 8.071 8.268 8.661 8.858 9.055 9.449

3.701 3.701 3.898 3.898 4.094 4.291 4.291 4.488 4.685 4.685 4.882 5.079 5.079 5.276 5.276 5.472 5.669 5.866 6.063 6.457 6.654 6.850 7.047 7.441 7.638 7.835 8.031 8.425 8.622 8.819 9.213

7.283 7.283 7.480 7.480 7.677 7.874 7.874 8.071 8.268 8.268 8.465 8.661 8.661 8.858 8.858 9.055 9.252 9.449 9.646 10.039 10.236 10.433 10.630 11.024 11.220 11.417 11.614 12.008 12.205 12.402 12.795

4.646 4.646 4.843 4.843 5.039 5.236 5.236 5.433 5.630 5.630 5.827 6.024 6.024 6.220 6.220 6.417 6.614 6.811 7.008 7.402 7.598 7.795 7.992 8.386 8.583 8.780 8.976 9.370 9.567 9.764 10.157

0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.689 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846 0.846

17.11.2010 11:24:30 Uhr

54 DEPAC ADVANTAGES

TECHNICAL DATA Range of application Pressure – 700 mm Hg – 28 bar (420 PSI) Pressure table atmosphere = 0 bar (0 PSI) Medium pressure *28 bar (420 PSI) 28 bar (420 PSI) 0

●●DIN-measurements, inch alternatives are possible ●●Shock and vibration dampened secondary faces

Barrier pressure 0 28 bar (420 PSI) 28 bar (420 PSI)

●●Double pressure balanced

* only for lubricating liquids

Temperature – Elastomer dependent Speed – 20 m/sec. (4000 FPM)

●●Complete pressure reversal possible

SIZES Dshaft

●●Automatic closing with pressure reversal

– 40 ..... 220 mm – inch sizes upon request

●●Mirror image face design

MATERIALS Metals – DIN 1.4571, 316 SS, for parts – Alternativs e.g. Hastelloy C, Monel, Titan or enamel coating, etc.

Springs – Hastelloy C Faces – CA, CE, SC, SSIC, TC O-Rings – FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.

●●Direction of rotation independent

Other sizes, materials or design variations upon request.

TYPE 370 ●●Double seal with bearing ●●DIN 28141 flange ●●DIN 24154 A – B – C shaft form ●●Alternative for all other customer specifications including inch sizes

THIS IS CONVINCING!

For all applications where DIN shaft/flange measurements are required, DEPAC offers a seal system from which an optimal mechanical seal can be chosen for every application. For all other housing and connecting dimensions, including inch sizes, DEPAC will manufacture accordingly.

The flange, seal faces, as well as certain housing parts are inter-changeable. The user can reduce the inventory level with a broad exchange of parts to fit all applications.

OUT 180° turned IN

This is called a modular system.

This system warrants also, as already described, the stationary seal advantages necessary to optimize the service life.

DEPAC_Katalog_engl.indd 54

17.11.2010 11:24:32 Uhr

AGITATOR-CARTRIDGES Modular System

STATIONARY

Double pressure balanced

55 TYPE 371

PLEASE NOTE

●●Single seal with bearing

DIN 28141 Flange DIN 28154 A – B – C shaft form We would like to point out that these seals are not only available in DIN dimensions, but also for ALL other dimensional requirements including inch sizes.

Dimensions not shown in some drawings can be taken from the drawing of Type 370.

TYPE 372 ●●Double seal

In 180° turned Out

TYPE 373 ●●Single seal MM TYPE 326

DEPAC_Katalog_engl.indd 55

DS1

DS2

D3

D4

D5

D6

40 50 60 80 100 125 140 160 180 200 220

38 48 58 78 98 120 135 150 170 190 210

110.0 176.0 176.0 204.0 234.0 260.0 313.0 313.0 364.0 364.0 422.0

145.0 210.0 210.0 240.0 270.0 295.0 350.0 350.0 400.0 400.0 460.0

177.0 240.0 240.0 280.0 310.0 335.0 390.0 390.0 440.0 440.0 500.0

160.0 178.0 188.0 217.0 234.0 266.0 300.0 310.0 340.0 360.0 380.0

n x D7 in/out 4 x 18 8 x 18 8 x 18 8 x 22 8 x 22 8 x 22 12 x 22 12 x 22 12 x 22 12 x 22 16 x 22

G 3/8 G 3/8 G 3/8 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2

L1

L2

L3

187.0 195.0 197.0 220.0 214.0 255.0 275.0 290.0 295.0 300.0 315.0

135.0 135.0 135.0 135.0 135.0 135.0 150.0 150.0 150.0 150.0 150.0

105.0 105.0 105.0 105.0 105.0 105.0 115.0 115.0 115.0 115.0 115.0

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REFINERIES

56 DEPAC SPECIAL SEALS for the oil industry Range of applications The large variety of applications in the oil industry requires special sealing solutions to guarantee the highest degree of operating safety. Again the DEPAC experience is asked for.

Type 306-S-135 To avoid an uncontrollable plant shut down, it was a special customer requirement to have an adjustable packing set as a backup or safety seal.

The Challenge For the shown example, the existing shaft and sleeve design was needed for the impeller mounting and positioning, and therefore could not be changed.

DEPAC designed the seal accordingly, incorporating additional features like external flush possibility into a cartridge design, for ease of installation and maintenance.

A second difficulty was the short installation space on the outside of the sealing chamber.

The DEPAC Solution

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SUPPLY SYSTEMS

57 Type

Page

TS

58 – 59

THERMOSYPHON SYSTEM Technology and Application Tank Refilling/Hand Pump Circulating Pump Level Switch Pressure Gauge Thermometer

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58

Introduction

DIAGRAM

The DEPAC TS Thermosyphon system is a simple and reliable support system for double seals. It can be used with DEPAC double seals as well as those of other manufacturers.

G 1/4” 2

The barrier fluid should be a low viscosity, well lubricating and clean liquid with a high specific heat capacity.

Due to pipe resistance, the viscosity of the barrier fluid should not be much higher than that of water.

SEAL

G 1/4”

PRESSURIZING If for safety, technical and/or product reasons, the barrier pressure must be higher than the medium pressure, then an appropriate nitrogen buffer may be applied to pressurize the barrier fluid.

7 Cooling in

Cooling out

SEAL

6

8

Out

G 1/4”

SEAL

G 1/4”

COOLING To ensure the best possible circulation, it is always recommended to use a cooling system with cooling coils within the TS-tank.

SEAL

5 Barrier fluid

SEAL

MULTIPLE CONNECTIONS If one thermosyphon system is to be used for two seals, a circulation pump must be used in the barrier fluid line.

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SUPPLY SYSTEM

Level switch

Tank Metals Volume Operating Volume Operating Pressure*) Test Pressure Operating Temp.

Cooling Efficiency**)

all product wetted parts 316 SS 7.5 Liter 2 Liter 25 bar (375 PSI) 33 bar (495 PSI) -10 °C (4 °F) to +120 °C (48 °F) appr. 1 kW by natural circulation appr. 3 kW by forced circulation

*) Stated limits are dependent on all application details. **) Values based on 60 °C (140 °F) temperature of barrier fluid and 20 °C (68 °F) of cooling water.

View X

The level switch allows the operator to monitor and control the fluid level. An electronic signal can be used for an alarm or control an automatic filling device.

An explosion proof level switch is also available.

Metals DIN 1.4571, 316 SS

for product wetted parts Pressure 30 bar (450 PSI) Operating Temp.

150 °C (302 °F) Specific gravity of barrier fluid min. 0.7 g /cm2

Pressure gauge and thermometer are offered to monitor pressure and temperature in the TS-system.

Metals DIN 1.4571, 316 SS

for product wetted parts

View Y

Venting (G 1/4”)

1

Measuring range Pressure gauge 0 – 25 bar (0 – 375 PSI) Thermometer 0 – 200 °C (0 – 392 °F)

View X

2

Thermometer connection (G 1/2”)

Hand pump as filling unit

The hand pump serves to refill the barrier fluid in the thermosyphon tank. The refilling can be done during operation.

The hand pump can be mounted on the DEPAC TS tank.

Metals

Feed volume

DIN 1.4571, 316 SS for product wetted parts 18 cm 3/stroke

G2 for model with level switch

Pressure gauge Thermometer

Connection filling / pressure (1/4”NPT)

59

Circulating pump In order to increase the cooling efficiency of the barrier fluid, the circulating pump can be installed in the barrier fluid line.

Metals

Operating Pressure Operating Temp.

Power Connection Electrical consumption

DIN 1.4571/PTFE for product wetted parts max. 28 bar (406 PSI) max. 100 °C (212 °F) 220 V/50 Hz 18 Watt

Pressure gauge 3 connection (G 1/2”) 9

Cooling IN/OUT (1/4”NPT)

7

8

View Y

Barrier fluid IN/OUT GLRD (1/4” NPT)

DEPAC_Katalog_engl.indd 59

5

6

Drain 4 (1/4” NPT)

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PAPER, STEEL, FOOD PROCESSING INDUSTRY

60 DEPAC SPECIAL SEALS for the paper, steel and food-processing industries The Application In many of the above industries, certain applications require special sealing devices, often called hydraulic or rotating couplings.

The Problem Definition If hot oil or cooling fluids are used for heating or cooling a hollow rotating shaft, extensive experience is needed to be able to offer reliable seals for these uncommon applications.

DEPAC_Katalog_engl.indd 60

The DEPAC Solution Due to the extreme temperatures of appr. 280 째C (536 째F) to 300 째C (572 째F) elastomer materials had to be avoided. This was achieved by the use of Hastelloy C rolled bellows.

To guarantee the optimal service reliability, DEPAC designed this seal arrangement also on the stationary design principle.

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INSTALLATION

61 Installation During installation it is imperative that all the seal parts are kept clean and free of dirt. Dirt particles on the seal faces or O-Rings can cause instant leakage and even damage the seal faces.

All DEPAC seal shipments contain installation and operating instructions with corresponding drawings for the seal. Operating instructions should obviously be read and appropriate measures should be taken before installing a seal. Most important is that the installation dimensions are checked in comparison to the related dimensions of the equipment.

Set screws For set screws, which tighten the seal to the shaft or sleeve, and for connecting bolts, which tighten the seal gland to the equipment housing, an anti loosening agent such as Loctite 241 should be applied.

To avoid axial movement of seals on the shaft or sleeve under pressure conditions at or above 15 bar (225 PSI), DEPAC recommends drilling the shaft/ sleeve where the set screws are to be tightened.

Please ask your DEPAC representative for further information.

Welded bellows/Rolled bellows Please note that welded and rolled bellows seals are Corners not to be over compressed during installation!

O-Rings or other elastomers, which for installation rea- If this happens, a pressure set occurs which reduces sons need to slide over edges, are very sensitive and the calculated spring rate and causes the seal to fail. should be protected. Therefore all edges on sleeves These seals have to be assembled with a mountor shaft recesses, over which seals are to be pushed, ing tool, which bridges the bellows. This enables the have to be clean of burrs and should be chamfered to thrust applied to the seal during installation to be no less than 25 to 30 ° x 3 mm (0,12”). transferred to the connecting part without damaging the bellows. Mounting tools are either delivered with Face protection the seal or should be prepared accordingly.

Single seals are supplied by DEPAC with a special wax protective coating on the faces which should be Double seals removed completely. The wax leaves an oily film on It is of utmost importance that the barrier chamber the face, which is useful when starting the seal. How- is vented. DEPAC seals of the series 321, 326 and ever, no dust or dirt particles should be allowed to 365 have special venting devices incorporated, which stick to the film. This can cause leakage or damage should be used accordingly. In all situations, dry runto the faces. ning of the seal must be avoided since this would result in seal failure due to overheating.

Secondary seals For the lubrication of secondary seals like O-Rings, Springs etc. silicon grease or silicon oil should be used durAttention! If single springs (conical springs) are used, ing installation. Conventional mineral oils are to be the direction of spring winding has to correspond with avoided since some elastomers might not be resistant the direction of the shaft rotation (exeptions are rubto them. Special care should be taken that rubber ber bellow seals). For this reason it is important at bellow seals are to be installed with soapy water as the time of seal selection, to check if the seal’s direcopposed to oil or grease. tion of rotation is dependent or independent. The following drawings clearly show the necessary spring winding direction in relation to the direction of the shaft rotation.

DEPAC_Katalog_engl.indd 61

View from motor side

Shaft rotation: right Spring winding direction: right During installation the seal/spring should be pushed onto the shaft/ sleeve with a right turning motion

Left winding direction Left shaft rotation

Right winding direction right shaft rotation

If possible, a set of small springs equally spaced around the seal face should be preferred and selected.

Please also note that sinus, “super sinus” or waver springs are only available with a relative steep spring rate. With the wear of the seal faces, the seal quickly loses the spring force it needs and therefore its potential service life is artificially reduced.

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62 POWER CONSUMPTION OF PRESSURE BALANCED SEAL FACES

Speed RPM

Shaft diamter mm

Example from Data: Pressure = 15 bar (225 PSI) Shaft diameter = 70 mm (2”) Speed = 2000 RPM Power consumption: appr. 380 W

Pressure bar

Power consumption

Watt

LEAKAGE OF PRESSURE BALANCED SEALS

Speed RPM

Shaft diameter mm

Example from Data: Pressure = 16 bar (240 PSI) Shaft diameter = 80 mm ( 3 1/8”) Speed = 3000 RPM Leakage: appr. 7 ml/h

Pressure bar

DEPAC_Katalog_engl.indd 62

Leakage ml/h

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TECHNICAL DATA

63 FACE VELOCITY

Speed RPM

Mean face diameter mm

Example from Data: Mean face diameter = 110 mm Speed = 4000 RPM Face velocity 23 m/sec.

(4600 FPM)

Face velocity (m/s)

Pressure bar

WATER/STEAM PRESSURE CURVE

Temperature °C

TEMPERATURE CONVERTION CELSIUS/FAHRENHEIT/CELSIUS °C

0

1

2

3

4

5

6

7

8

9

220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0

428.0 410.0 392.0 374.4 356.0 338.0 320.0 302.0 284.0 266.0 248.0 230.0 212.0 194.0 176.0 158.0 140.0 122.0 104.0 86.0 68.0 50.0 32.0

429.8 411.8 393.8 375.8 357.8 339.8 321.8 303.8 285.8 267.8 249.8 231.8 213.8 195.8 177.8 159.8 141.8 123.8 105.8 87.8 69.8 51.8 33.8

431.6 413.6 395.6 377.6 359.6 341.6 323.6 305.6 287.6 269.6 251.6 233.6 215.6 197.6 179.6 161.6 143.6 125.6 107.6 89.6 71.6 53.6 35.6

433.4 415.4 397.4 379.4 361.4 343.4 325.4 307.4 289.4 271.4 253.4 235.4 217.4 199.4 181.4 163.4 145.4 127.4 109.4 91.4 73.4 55.4 37.4

435.2 417.2 399.2 381.2 362.2 345.2 327.2 309.2 291.2 273.2 255.2 237.2 219.2 201.2 183.2 165.2 147.2 129.2 111.2 93.2 75.2 57.2 39.2

437.0 419.0 401.0 383.0 365.0 347.0 329.0 311.0 293.0 275.0 257.0 239.0 221.0 203.0 185.0 167.0 149.0 131.0 113.0 95.0 77.0 59.0 41.0

438.8 420.8 402.8 384.8 366.8 348.8 330.8 312.8 294.8 276.8 258.8 240.8 222.8 204.8 186.8 168.8 150.8 132.8 114.8 96.8 78.8 60.8 42.8

440.6 422.6 404.6 386.6 368.6 350.6 332.6 314.6 296.6 278.6 260.6 242.6 224.6 206.6 188.6 170.6 152.6 134.6 116.6 98.6 80.6 62.6 44.6

442.4 424.4 406.4 388.4 370.4 352.4 334.4 316.4 298.4 280.4 262.4 244.4 226.4 208.4 190.4 172.4 154.4 136.4 118.4 100.4 82.4 64.4 46.4

444.2 426.2 408.2 390.2 372.2 354.2 336.2 318.2 300.2 282.2 264.2 246.2 228.2 210.2 192.2 174.2 156.2 138.2 120.2 102.2 84.2 66.2 48.2

0 -10 -20 -30

32.0 14.0 -4.0 -22.0

30.2 12.2 -5.8 -23.8

28.4 10.4 -7.6 -25.6

26.6 8.6 -9.4 -27.4

24.8 6.8 -11.2 -29.2

23.0 5.0 -13.0 -31.0

21.2 3.2 -14.8 -32.8

19.4 1.4 -16.6 -34.6

17.6 -0.4 -18.4 -36.4

15.8 -2.2 -20.2 -38.2

[Celsius (°C) x 1.8 + 32] = Fahrenheit (°F)

DEPAC_Katalog_engl.indd 63

[Fahrenheit (°F) -32]/1.8 = Celsius (°C)

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64

Seal selection made easy! Type of equipment The following data sheet used in conjunction with the information in this catalog will make the selection of the correct DEPAC seal much easier.

Pump Other (your specifications)

Agitator

Fermenter

By following the check list and marking your requirements, you should find the correct solution. The following details are necessary for a safe and optimal solution: ●●Type of equipment ●●Equipment dimensions ●●Medium details ●●Basic seal requirements ●●Materials required If you are not a 100% certain that you have the correct solution, please feel free to fax these sheets, with your data, to us or your local DEPAC representative. You will promptly receive the optimal and most cost effective sealing solution.

Installation

horizontal

vertical

Equipment details Dimensions

MM

INCH

Ø Dw Ø DS Ø D2 Ø D3 Ø DB

Equipment bolts Indicate number and position

L L1 L2

Shaft speed RPM

RPM/min

Axial shaft tolerance

mm

Radial shaft tolerance

mm

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DATA SHEETS

65

Media Data Process Fluid/Medium Temperature °C

pH-factor °F

Pressure/Vacuum

min.

max.

Suction

Discharge

Stuffing Box/Sealing chamber

Solids

yes

no

Abrasives

yes

Crystallizing

yes

no

Due to what criteria

Continuous service

yes

no

Intervals

Flush available

yes

no

Medium

Quench (steam) available

yes

no

Barrier system available

yes

no

Thermosyphon

Medium

Continous flow

Pressure

Tank

no

Slurry

yes

no

Pressure

Temperature

Pressure

Temperature

Temperature

Will the seal be cleaned while in use? yes

no

Medium

How

Pressure

Intervals

Temperature

Requirements Component seal

Cartridge

Materials Metal parts (in contact with the medium)

Single

Type

Stationary

Type

Gland/Housing

Gland

Type

Faces

Adapter

Type

DIN 24960

yes

Single

Type

Gasket

Flush / Quench

Type

Bellows

Safety

Type

Springs

Double

Type

Secondary Seals

O-Rings Wedge

no

TS-System

With pumping screw Gas lubricated

yes

Supplementary parts

Special seals ANSI

API

DEPAC_Katalog_engl.indd 65

Pressure and relief values Thermometer

Standard

Type

„Big bore”

Type

Circulating pump

Single

Type

Level Switch

Double

Type

no

Refilling Unit

Pressure gauge Standard

Ex

Mechanical

Electrical

Ex

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MINING INDUSTRY

66 DEPAC SPECIAL SEALS for the mining industry Description Special drilling machines used in tunnel and mining applications are subjected to the most extreme service conditions.

The DEPAC solution DEPAC designed the complete system, which met all the complex requirements.

Between the inner and outer sealing set, water with a pressure of up to 70 bar For the shown example, the required seal- (1050 PSI) is sealed. The water is dising system was to be integrated with the persed between the two seals and then bearing and was to allow high pressure distributed over 16 holes in the rotating cooling water to be injected into the drill disc. As the drawing shows, a spring head at certain segments only. The water loaded sealing segment controls the flow was to be introduced under pressure of path which allows water to flow only 70 bar (1050 PSI) during continues oper- through 30 % of the holes at one time. ation. The whole system, including bearing and segment flushing, needed to be The result is that at any rotary position of developed. the drill head, the liquid exits at the same angle.

An additional benefit of this solution is the ability to “blind” mount the seal with an axial housing position within a ± 2 mm (0,08”) tolerance.

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PRODUCT RANGE

DEPAC Mechanical Seals ... world`s finest

67 Depac is a leading manufacturer of technically advanced mechanical seals.

Our high-tech products only enhance our competitive position in the Industry.

1. MECHANICAL SEALS

Apart from the large program of mechanical seals as shown in this catalog, DEPAC also offers special custom designed seals for all kinds of applications.

A long line of patent registration shows the outstanding technological capability of our organization.

For the special needs of customers, DEPAC offers the most economical solutions, which stand up most favorably in comparison to even the largest competitors.

Our modern CNC production facility and strict quality control procedures as well as our extensive product testing, guarantee the highest performance standards of every DEPAC mechanical seal.

2. PACKING

These standards guarantee the highest degree of reliability and provide an exceptional maintenance record for our customers.

For the conventional applications of packings, DEPAC offers a complete program of stuffing box packing.

The most modern braiding techniques as well as materials are used to produce top quality for best performance.

© 2010 Depac, Edition 10/10/1500/LD, changes are reserved, Art. No. 8201-002-GLRD-10-0

3. HYDRAULIC SEALS

DEPAC_Umschlag_4mm_RH_engl.indd 2

l INSTANT SEAL® l ORBIFLON® It is especially important in the application of hydraulic seals that highest quality seals are used. Unexpected shutdowns are extremely expensive and therefore special attention should be paid to achieve the best service life with minimum wear of equipment or sealing surfaces.

So, if you too want to reduce the common losses due to shutdown, oil leakage, maintenance costs and surface wear, please discuss your applications with us.

4.

TP-COMTEC® PRODUCTS

One cannot picture today’s industry without these types of modern maintenance products. The DEPAC product line ranges from corrosion prevention, coating, special lubrication to industrial cleaning.

DEPAC is certain of its quality so that we are willing to back our product with our “money back guarantee” if you are not satisfied.

17.11.2010 9:18:38 Uhr