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Domestic Tank Functions
881 HERSEY STREET ST. PAUL, MN 55114 PHONE (651) 646-1177 FAX (651) 646-1676
Domestic Tank Functions
Le ve l Pr e ssu re Re lief
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Liq uid
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Va po rS
Ble ed er
80 %
Dr or Pre Serv ssu ice re
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Va p
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Ble
Re or
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Horizontal tank Sketch 2
We can compact this a bit using a Rego 7556R12.0 vapor head Multivalve. The vapor out functions are built into one valve saving three of tank openings. This arrangement is typical on most storage tanks produced today.
Re
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Le uid Liq n Dr ai
Page 2 of 8
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Another arrangement compacts things even further using a Rego 8593AR16.0 Multivalve. Here the vapor out functions and the filler function are built into one valve saving four tank openings. Many tanks were manufactured with this arrangement over the years.
Liq
Horizontal Tank Sketch 3
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Fil
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Fil
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This arrangement is very spread out, with many tank couplings. Although tanks are not manufactured this way any longer, some of the older tanks will be found with this arrangement.
Liq
Va po rR
Horizontal Tank Sketch 1 (Functional) (Depicts all the tank functions)
Fil ler
Liq uid
Ou t
etu r
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There are nine (9) basic functions that should be provided on a viable domestic propane storage tank. Function Hookup Connection Tank Connection Liquid Out 3/4” FNPT Chek-Lok Adapter Filler 1-1/4” FNPT 1-3/4” Male ACME Vapor Return 3/4” FNPT 1-1/4“ Male ACME The graphics depict the 80% Bleeder 1/4” FNPT To Atmosphere common arrangements Vapor Service 3/4” FNPT FPOL Liquid Level Float Flange Read the Dial Pressure 1/4” FNPT Read the Dial Relief Various FNPT To Atmosphere Drain 1-1/4” FNPT 1-1/4” Pipe Plug
Domestic Tank Functions Liq uid L Va po evel rR etu 80 % r Ble n Va ed po er r Pre Serv ssu ice re
Horizontal Tank Sketch 4
Re lief
Fil ler
Liq uid
Ou t
This arrangement is an extremely popular effort by Master Tank to consolidate many of the tank functions into a proprietary Multivalve. Because the valve was made only for Master Tank, who is now out of business, the valve cannot be replaced, but can be repaired.
Dr
ain
8484
Vertical Tank Sketches
R
120 gallon (420 lb.) upright cylinders may be Quadrifitted with separated valving or Multivalve fitted. The Multivalves are available with either 3/4� MNPT or 1� MNPT tank connection. ASME design cylinders require a 250 psi relief valve setting. DOT (old ICC) design cylinders require a 375 psi relief valve. Vapor Service Filler 80% Bleeder Relief Vapor Service Filler 80% Bleeder Gauge R
QUADRIFITT DESIGN
Gauge
Gauge
Relief Relief Filler Vapor Service 80% Bleeder
MULTIVALVE DESIGN
Gauge
Page 3 of 8
Relief Filler Vapor Service 80% Bleeder
Domestic Tank Functions
Domestic Tank Valves Filler
Liquid Out
7590U 3/4” Chek-Lok
7591U 1-1/4” Chek-Lok
Bleeder
7647SC 3/4” Filler
Vapor Service
7579 1-1/4” Filler
Vapor Return
7573D 3/4” Vapor Return
Multivalve
Multivalve
3165C 3/4” Bleeder 3165F12.0 3/4” Bleeder 12” Dip Tube
9101R1 3/4” Vapor Valve
Vapor Service for Upright Cylinders
7556R12.0 3/4” Vapor, Bleeder, Vapor Return
8593AR16.0 1-1/2” Vapor, Bleeder, Vapor Return, Fill
Multivalve 8484
6532R12.0 3/4” 250# 6533R11.7 3/4“ 375# Vapor, Bleeder, Fill, Relief
Page 4 of 8
6542R12.0 3/4” 250# 6543R11.1 3/4“ 375# Vapor, Bleeder, Fill, Relief
8484 1-1/2” Vapor, Bleeder, Vapor Return, Float Gauge The 8484 valve is obsolete. Shown here for reference only because of its widespread use in our marketplace.
Domestic Tank Functions
Domestic Relief Valves Required relief valve sizing for common domestic ASME tanks. Outside Required Tank Surface Flow Gallons Area sq. ft. SCFM/AIR
Tank Pipe Size
120
39
1078
150
48
1286
250
62
1580
325
79
1930
500
98
2300
1”
1000
174
3684
1-1/4”
3/4” External Relief
External Reliefs Pipe Size
3131G
2060
3/4”
3131-54
W3132G
3340
1”
3132-54
3132G
4130
1-1/4”
3132-54
3135G
5770
1-1/4”
3135-54
3133G
6080
1-1/2”
3133-54
Part Number
Closure caps come standard on external relief valves. Also work on some internal relief valves.
Closure Cap Included
Flow Capacity SCFM/AIR
Internal Relief
Ringed caps come standard on internal relief valves.
Internal Reliefs
R
Flow Capacity SCFM/AIR
Pipe Size
Cap with Ring Included
Closure Cap Also Fits
7583G
1980
3/4”
7583-40
3131-54
8684G
2620
1”
8684-40
3131-54
8685G
4385
1-1/4”
7585-40X
3132-54
Part Number
Cap with Ring
Page 5 of 8
Closure Cap
Domestic Tank Functions
Float Gauges Rochester Liquid Level Gauges Are Magnetic The Rochester liquid level gauges are magnetic. Their design permits the complete sealing off of the inside liquid from the outside gaugehead and dial.This eliminates fire hazards and loss of product from broken glass, leaking packings and the irratic reading of other designs. The Rochester magnetic liquid level gauge operates simply by means of a float actuating a powerful magnet inside the container. This in turn provides an invisible “magnetic coupling� through a solid head with a second magnet on the pointer in the dial chamber. The gauge head completely seals off the liquid in the container so the dial may be removed and replaced quickly without loss of liquid, pressure, vacuuum, or costly downtime.
Typical Dial
Typical Magnetic Liquid Level Gauge
Magnets
Page 6 of 8
Domestic Tank Functions
Float Gauges
Page 7 of 8
Domestic Tank Functions
Float Gauges Rochester Glue-on Universal Dial Kits These Universal Dial Kits are meant to replace old obsolete Senior and Junior dials that cannot be repaired with the standard 2 screw dials. The user should obtain silicone adhesive from a local source. Part Number 3180S17001 3181S01749
Attachment
Service
Dial Face
Glue-on
LP-Gas
5 - 95%
Size Senior Junior
3180S17001
3181S01749
5986S02733
5909S02733
Rochester Dials for Horizontal Tanks
Standard Senior and Junior dials that are attached with the 2 screws. Dials are Remote Ready with removable dust cap. Part Number 5986S02733 5909S02733
Attachment
Service
Dial Face
2 Screw
LP-Gas
5 - 95%
Size Senior Junior
Rochester Dials for Vertical Cylinders Dials for vertical cylinders with 10 - 80% faceplate. Available with 2 screw or snap-on mounting. Part Number
Attachment
5909S02772
2 Screw
5364S01951
Snap-on
Service
Dial Face
Size
LP-Gas
10 - 80%
Junior
5909S02772
5364S01951
Taylor Replacement Dials Choose Style A or Style B Mounting Pre-2002
Part Number
Size
130022 (5-2767) Junior 130023 (5-2768)
Rear View of Dials
Style Style A - Guide hole in back of dial at 95% position. Style B - Guide hole in back of dial at 5% position.
Junior & Senior Parts
Part Number
Description
40-415
Senior Screw
15-4
40-414
Junior Screw
15-7
40-416
Dial Screw
Part Number
Page 8 of 8
Description
Post-2002
Style B Part No. 130023 Large pinhole at 5%
Style A Part No. 130022 Large pinhole at 95%
40-414
40-416
15-7