Mento Hoses and Couplings Catalogue
18. Technical Information
Technical Information • • • • • • • • • •
Hydraulic Hoses Hose Selection Chart Pressure Conversion Conversion Factors Hydraulic Coupling Thread Properties of Rubber Properties of Plastics ASTM Designation Rubbers Swell Resistance of Rubbers Conversion Factors
• Remarks on Use of Hoses
18. 18-1 18-2 18-3 18-4 18-5 18-6 18-7
4. EDITION
Mento Hoses and Couplings Catalogue
18. Technical Information
1
Hydraulic Hoses Selection of hydraulic hoses Working pressure: When selecting a hose it should be considered that it’s working pressure should be higher than the maximum operating pressure of the system. For determination of the maximum operating pressure the system engineer should always consider possible pressure peaks during start up and inversion. Pressure peaks may be so short that they are only measurable with electronic devices. In suction applications, the capacity of the hose to withstand negative pressure is a decisive factor. Working pressures are given for working temperature of + 20ºC (+ 68ºF). For increased temperatures a de-rating factor should be considered.
Electrical conductivity: Electrical conductivity, to avoid static electricity build up, or non-conductivity, to avoid electrical discharge through the assembly, may be decisive requirement to avoid explosion or electrical shocks. Whenever the hose is not unequivocally branded either non-conductive or anti-static, its electrical characteristics should always be considered as not controlled.
Balflex Hydraulic
Electrical conductivity:
Permeability: All hoses present a certain degree of permeability, Electrical conductivity, to avoid static electricity build up, or non-conductivity, to avoid electrical d especially and highly volatile liquids. The designer assembly,with maygases be decisive requirement to avoid explosion or electrical shocks. Wheneve should consider the possibility that this permeabilityorresults in unequivocally branded either non-conductive anti-static, its electrical characteristics considered as not controlled. system or environment contamination.
Permeability: Abrasion: Accelerated external abrasion, through contact in Balflex Hydraulic Balflex Hydraulic Hoses All hoses present atocertain degree of permeability, especially with gases and highly volatile li motion or exposure projected particles reduces drastically
Note: Only an accurate knowledge of the pressure history of the service cycles of the equipment should lead to a sub-dimensioning of the hose by the engineer, bearing in mind the recommendations of SAE J 1927 standards. Electrical conductivity:
should thetopossibility that this permeability results of in system or environment contaminatio hose lifeconsider and leads premature failure through exposure the Electrical conductivity: reinforcement. For special applications we recommends hoses Temperature: Excessive temperature is one of the main limitaAbrasion: Electrical conductivity, to avoid static electricity up, the or non-conductivity, to avoid electrical d Electrical conductivity, to avoid static electricity build up, or non-conductivity, to avoid electrical discharge build through with special abrasion resistant rubber compounds orisexplosion protection tions of rubber and inducesmay accelerated aging. Fluid temperature, assembly, may be shocks. decisive requirement to hose avoid or electrical shocks. Wheneve assembly, be decisive requirement to avoid explosion or electrical the not Accelerated external abrasion,Whenever through contact in motion or exposure to projected particles redu through unequivocally branded eitherfailure non-conductive or anti-static, electrical characteristics branded either non-conductive its electrical characteristics should exposure always beof the its either in motionunequivocally or with the equipment stopped, should not exceedor anti-static, life andadequate leads tosleeves. premature through reinforcement. For special a considered as not controlled. considered as not controlled. recommends hoses with special abrasion resistant rubber compounds or protection through adequ the maximum working temperature recommended for each Couplings selection: Couplings are a fundamental part of the hose. Likewise, Permeability: surrounding temperature should be considered, Permeability: geometry ofselection: hose assemblies. The compatibility of sealing and Couplings specially when All resulting from heat sources in the proximity of the securement of the couplings theofsystem ports beassemblies. veri-with gases All hoses a certain degree ofliquids. permeability, especially and highly volatile hoses present a certain degree of permeability, especially withpresent gases and highlyto volatile Theshould designer Couplings are a fundamental part the geometry of hose The compatibility of sealinli hose assembly.should consider the possibility that this permeability results should consider thatseries this permeability results in system contaminatio in system or environment contamination. the couplings to the the possibility system ports should be each verified. The recommended coupling series for each h fied. The recommended coupling for hose should be or environment
Balflex Hydraulic Balflex Hydraulic Hoses
Electrical conductivity: and and the assembly instructions carefully followed. Inadequate couplings may damage the hose and Electrical conductivity: used the assembly instructions carefully followed. Inadequate Fluid compatibility: Fluid compatibility with the hose and the Abrasion: Abrasion: failure. Electrical conductivity, to avoid static electricity build up, or non-conductivity, to avoid electrical d Electrical conductivity, to avoid static electricity build up, or non-conductivity, to avoid electrical discharge through the couplings mayexternal damageabrasion, the hosethrough and lead to a premature failure. coupling shouldAccelerated be verified. external Fluids that chemically attack the hose Accelerated contact in motion or exposure to projected particles redu abrasion, through contact in motion or exposure to projected particles reduces drastically hose assembly, may be shocks. decisive requirement to avoid explosion or electrical shocks. Wheneve assembly, may be decisive requirement to avoid explosion or electrical Whenever the hose is not ® can lead to the contamination obstruction ofnon-conductive the hydraulic Table Examples of installation ofshould hoses assemblies life and4:its leads to premature failure through exposure reinforcement. For special a life and leads and to premature through exposure of the reinforcement. For special applications Balflex unequivocally branded either non-conductive or anti-static, electrical characteristics unequivocally branded eitherfailure or anti-static, electrical characteristics always beof the its Examples of installation of hoses assemblies recommendsor hoses with special resistant recommends hoses withhose. special abrasiongases resistant rubber compounds protection throughabrasion adequate sleeves.rubber compounds or protection through adequ considered as not controlled. system and to premature failure of controlled. the Handling considered as not Incorrect Correct Incorrect requires special attention. As an orientation, the Hydraulic Hose Couplings selection: Couplings selection: Permeability: Permeability: Fluid Compatibility Chart gives a classification of compatibility with Couplings are a fundamental part of the geometry hose assemblies. The compatibility of sealinli Couplings are a fundamental part of the geometry of hose assemblies. The compatibility of sealing and securement of All hoses a certain ofliquids. permeability, especially with gases and highly volatile All hoses a certain degree of permeability, especially withpresent gases and highlydegree volatile The of designer some fluids. Consult us forpresent compatibility of other fluids and rubber The the couplings to the possibility system ports should be verified. The recommended coupling series for each h the couplings to the possibility system ports be verified. coupling series for hose should results be used should consider thateach this permeability in system or environment contaminatio should consider thatshould this permeability resultsrecommended in system or environment contamination. compounds. Whenever in doubt test before application. andcouplings the assembly instructions and the assembly instructions carefully followed. Inadequate may damage the carefully hose andfollowed. lead to aInadequate premature couplings may damage the hose and failure. Abrasion:
failure. Abrasion:
Couplings selection:
Couplings selection:
Dimensioning: Dimensioning of all components should guarantee abrasion, through contact in motion or exposure to projected particles redu Accelerated external abrasion, through contact in motion Accelerated or exposure external to projected particles reduces drastically hose that pressure loss is kept Examples at a minimum, order not toofreduce ® Table Examples of For installation of hoses assemblies Table of in installation hoses assemblies life leads to premature failure applications through exposure life and4: leads to premature failure through exposure of and the4:reinforcement. special Balflexof the reinforcement. For special a power transmission and to avoid overheating turbulence of therubber recommends with special resistant recommends hoses with specialorabrasion resistant compounds orhoses protection throughabrasion adequate sleeves.rubber compounds or protection through adequ Incorrect Correct Incorrect Incorrect of the lining. Correct Incorrect Correct fluid that might lead to deterioration
Assembly geometry: Installation should guarantee that the areThe a fundamental of the geometry of hose of assemblies. The compatibility of sealin Couplings are a fundamental part of the geometry of hoseCouplings assemblies. compatibilitypart of sealing and securement minimum bend radius of the hose respected that be bendthe couplings to the system ports should be verified. The recommended coupling series for each h the couplings to theissystem portsand should verified. The recommended coupling series for each hose should be used andcouplings the assembly instructions theplane. assembly may damage the carefully hose andfollowed. lead to aInadequate premature couplings may damage the hose and ing occurs only and in one Hoseinstructions length maycarefully suffer afollowed. varia- Inadequate failure. failure. tion between – 4% and + 2%, when submitted to pressure. The assembly lengthTable should4:provide enough margin for thisofchange Table 4: Examples of installation of hoses assemblies Examples of installation hoses assemblies in length. Torsion and traction of the assembly must be avoided Incorrect Correct Incorrect Incorrect Correct Incorrect Correct and protection and restrain of the assembly should be considered Incorrect Correct Incorrect Incorrect Correct Incorrect Correct if there are obstacles to avoid. Mechanical loads acting on the assembly, including vibration, should be kept at a minimum. Free swivelling connectors should be used whenever torsion is present. Whenever hose failure may result in whipping (for example in gas applications) restraint through a steel cable to the connecting parts should be considered. When connecting a moving part, the free movement of the assembly without touching any surface Incorrect Correct Incorrect Incorrect Correct Incorrect Correct should be assured. Positioning of the assembly should consider that risks of bodily injure and equipment damage through spillage or fluid ejection are minimized. Table 4 shows some correct and Construction characteristics and dimensions may be changed at any time without prior notice. incorrect installation situations. The data contained herein is information purposes only and does not enlarge, amend or imply any warranty other than pro Environmental compatibility: The hose and couplings compatibility with the working environment factors, as temperature, fire hazard, UV light, ozone, chemicals and electrical charges should be conIncorrect Correct sidered. External protection sleeves require an adequate assembly.
with the product. Any use of the product not in conformance with the manufacturer’s instructions may be dangerous.
Only items in this catalogue are carried in stock. Some items are subjected to minimum quantities or sold only in multiples of s refer to the price list or contact our commercial department.
Incorrect
Correct
Balflex® – The European Technology
Air and Gaseous applications: Hose assemblies that are to be (I) HYDR-2010 - 30 Construction characteristics and dimensions may be changed at any time without prior notice. Construction characteristics and dimensions be changed at any time without prior notice. used in air and other gaseous applications shoud bemay pin-pricked, The data contained herein is information only by andthe does not enlarge, amend or imply any warranty other than pro The data contained herein is information purposes only and does not enlarge, amend or imply any warranty other purposes than provided manufacturer through the cover, prior to use. with the product. Any may use of product not in conformance with the manufacturer’s instructions may be dangerous. with the product. Any use of the product not in conformance with the manufacturer’s instructions bethe dangerous. These micro perforations allow gas that has permeated the inner items inquantities this catalogue areonly carried in stock.ofSome itemsquantities. are subjected to minimum quantities or sold only in multiples of s items in this catalogue are carried in stock. Some items are subjectedOnly to minimum or sold in multiples standard Please tube of the hoseOnly to escape the atmosphere. This prevents refer to the price list or contact our commercial department. refer to the priceinto list or contact our commercial department. gases from accumulating and blistering the hose cover.
(I) HYDR-2010 -
30
Balflex® – The European Technology (I) HYDR-2010 - 30
Balflex® – The European Technology Balflex 2010
Balflex Hydraulic Hoses
Mento Hoses and Couplings Catalogue
18. Technical Information Balflex® Hose Selection Chart
2
This graphic helps finding the Nominal Hose Diameter-DN (mm) or the Dash Size. Firstly, one must know the Flow Rate and F Velocity values that are being used. These two pieces of information must be found in the outer graphic lines. Then by linking th two values with a straight line, one should obtain the Nominal Hose Diameter-DN (mm) or the Gauge Diameter-A (cm²). The exam below shows that for a fluid velocity of 4 meters per second and a flow rate of 70 liters per minute or 19 gallons per minute, should choose a hose with DN of 19mm it means 3/4" hose or a dash hose -12.
Hose Selection Chart This graphic helps finding the Nominal Hose Diameter-DN (mm) or the Dash Size. Firstly, one must know the Flow Rate and Fluid Velocity values that are being used. These two pieces of information must be found in the outer graphic lines. Then by linking these two values with a straight line, one should obtain the Nominal Hose Diameter-DN (mm) or the Gauge DiameterA (cm²). The example below shows that for a fluid velocity of 4 meters per second and a flow rate of 70 liters per minute or 19 gallons per minute, one should choose a hose with DN of 19mm it means 3/4" hose or a dash hose -12.
Construction characteristics and dimensions may be changed at any time without prior notice.
The data contained herein is information purposes only and does not enlarge, amend or imply any warranty other than provided by the manufact with the product. Any use of the product not in conformance with the manufacturer’s instructions may be dangerous.
Only items in this catalogue are carried in stock. Some items are subjected to minimum quantities or sold only in multiples of standard quantities. Ple refer to the price list or contact our commercial department.
Balflex® – The European Technology Balflex 2010
(I) HYDR-2010 -
3
Mento Hoses and Couplings Catalogue
3
18. Technical Information
Hydraulic Coupling Thread OD mm 8,00 9,73 10,00 10,27 11,11 12,00 12,70 13,16 13,57 14,00 14,29 15,88 16,00 16,66 17,06 18,00 19,05 20,00 20,96 21,22 22,00 22,23 22,91 24,00 26,00 26,44 26,57 26,98 28,00 30,00
ID mm 6,92 8,57 8,92 8,77 9,74 10,38 11,33 11,45 11,31 12,38 12,76 14,35 14,38 14,95 14,80 16,38 17,33 18,38 18,63 18,32 20,38 20,26 20,59 22,38 24,38 24,12 23,67 25,10 26,38 27,83
MM BSP MM NPTF JIC MM JIC BSP NPTF MM JIC SAE MM BSP NPTF MM JIC MM BSP NPTF MM JIC BSP MM MM BSP NPTF JIC MM MM
Type
8X1 1/8” X 28 10 X 1 1/8” X 27 7/16” X 20 12 X 1,5 1/2” X 20 1/4” X 19 1/4” X 18 1/4 X 1,5 9/16” X 18 5/8” X 18 16 X 1,5 3/8” X 19 3/8” X 18 18” X 1,5 3/4” X 16 20 X 1,5 1/2” X 14 1/2” X 14 22 X 1,5 7/8” X 14 5/8” X 14 24 X 1,5 26 X 1,5 3/4” X 14 3/4” X 14 1.1/16” X 12 28 X 1,5 30 X 2
OD mm 30,16 30,20 31,23 33,25 33,34 36,00 41,28 41,91 41,99 42,00 45,00 47,63 47,80 48,05 52,00 59,61 60,09 63,20 65,71 72,70 75,18 87,88 88,61 113,03 113,97 140,95 167,79 218,44
ID mm 28,20 27,88 29,61 30,29 31,40 33,83 39,30 38,95 38,45 39,83 42,83 45,80 44,85 44,52 49,83 56,66 56,56 60,80 62,75 67,62 72,23 84,93 83,53 110,07
JIC BSP NPTF BSP JIC MM JIC BSP NPTF MM MM JIC BSP NPTF MM BSP NPTF JIC BSP NPTF BSP BSP NPTF BSP NPT NPT NPT NPT
Type 1.3/16” X 12 7/8” X 14 1” X 11,5 1” X 11 1.5/16” X 12 36 X 2 1.5/8” X 12 1.1/4” X 11 1.1/4” X 11,5 42 X 2 45 X 2 1.7/8” X 12 1.1/2” X 11 1.1/2 X 11,5 52 X 2 2” X 11 2” X 11,5 2.1/2” X 12 2.1/4” X 11 2.1/2” X 8 2.1/2” X 11 3” X 11 3” X 8 4” X 11 4” X 8 5” X 8 6” X 8 8” X 8
Properties of Rubber Low temp. range High temp. range Air Oil Water Density gr/cm3
NR -40°C
SBR -30°C
CR -25°C
NBR -20°C
EPDM -40°C
CSM -10°C
FKM -20°C
PEX 0°C
IIR -25°C
+50°C
+70°C
+90°C +40°C +90°C 1.101.30 CSM 4 2 1 1 2 2 1 1 2 2 3 1-2 3 2 5
+150°C +200°C +120°C 1.401.95 FKM 3 1 2 2 2 1 2 2 2 4 2 2 5 2 2
+60°C +23°C +60°C 0.911.00 PEX 4 1 1 1 1 2 2 1 3 2 2
+90°C
+80°C 0.951.05 SBR 3 3 3 4 5 2 3 4 3 3 5 2 4 3 3
+80°C +93°C +70°C 0.981.00 NBR 3 4 5 4 4 3 3 3 3 3 5 3 4 2 3
+100°C
+70°C 0.981.00 NR 3 4 5 5 5 1 2 3 3 3 5 1-2 2 3 4
+80°C +60°C +80°C 1.201.25 CR 3 2 2 2 1 3 2 5 3 3 4 2 4 2 3
+150°C 0.921.00 IIR 1 1 2 1 5 2 2 3 2 3 5 2 2 3 2
5 2 2
5 5 5
3 1 1
1
5
5
1
2
5
1 1 1 2 5 1
2 2 1 2 5 1
5 5 5 5 5 2
1 2 4 3 3 3
2 1 2 2 2 5
2 1 3 2 2 3
+90°C 0.951.00 EPDM 1 2 1 2 5 1 1 1 2 2 3 2 1 1 2
Resistance Steam Weather UV Ozone Flame Water Diluted acids Concentrated acids Anorganic acids Organic acids Oxidating acids Alcohols Aldehydes Alcalics Amines Animal/vegetable oils/fats 5 4 2 1 3 3 Ester Alyl Phosphat 5 5 5 4 1 4 Ester Aryl Phosphat 5 5 5 5 1 4 Halogenated solvents 5 5 5 5 5 5 Halogenated Hydrocarbons 5 5 5 5 5 4 Aromatic hydrocarbons 5 5 5 5 5 3 Aliphatic Hydrocarbons 5 5 4 2 5 3 5 3 Mineral Oils 5 5 3 1 Ketones 3 4 3 2 5 5 LPG 5 5 2 1 5 2 Refrigerants ammonia based 3 3 1 2 2 2 2 Refrigerants Fluorbasis Water absorption 1 1 2 3 1 2 Gas Permetability 3 3 2 3 3 2 Abrasionresistance 1 2 3 3 3 2 Electrial insulation properties 2 2 2 4 1 2 Dielectrical strenghts 2 2 3 4 2 2 Flex 1 2 2 3 2 3 The named properties are indications only and serve as a guideline only. No liability is accepted. 1 = very good, 2 = good, 3 = satisfactory, 4 = limited, 5 = not recommended
Mento Hoses and Couplings Catalogue
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18. Technical Information
Properties of Plastics LDPE FEP PA PUR Min. temperature -20°C 100°C -30°C -40°C Max. temperature shortterm +70°C +250°C +140°C +110°C Max. temperature +60°C +208°C +70°C +80°C Abrasion resistance 2 3 3 1 Waterabsorption ASTM D 570 in % <=0,01 <=0,1 <=0,3 <=0,9 Resistance Water 23°C 1 1 1 1 Water 60°C 2 1 2 3 Diluted acids 1 1 3 2 Concentrated acids 2 1 3 3 Oxidizing acids 3 1 3 3 Organic acids 1 1 2 2 Saltsolutions 1 1 2 1 Aliphatic hydrocarbons 1 1 2 2 Chlorinated Hydrocarbons 3 1 2 2 Aromatic Hydrocarbons 3 1 1 2 Fuels 3 1 1 2 Mineral Oils 1 1 1 1 Oils and fats 1 1 1 2 Esters 2 1 1 3 Ketone 2 1 1 3 Alcohole 2 1 1 1 Ethers 3 1 2 1 Aldehyde 2 1 2 Amine 2 1 1 TThe named properties are indications only and serve as a guideline only. No liability is accepted. 1 = very good, 2 = limited, 3 = not recommended
PP -30°C +140°C +100°C 3 <=0.03
PVC 20°C +60°C +50°C 2 <=0,15
1 1 1 2 3 2 1 3 2 2 2 1 1 2 2 1 3 1 1
1 2 1 3 3 2 1 3 3 3 3 2 2 3 3 2 3 1 1
ASTM Designation Rubbers ASTM D1418 NR BR SBR CR NBR ACM ECO EPDM IIR CSM CM FKM FEP AU PVC PA
Chemical Definition
Common Names
Solvent Information
Polyisoprene Polybutadien Styrol Butadien Poly Chloropren Acryl Nitril Butadien Ethyl Butyl Acetat Epichlorhydrin Ethylen Propylen Dien Terpolymer Isobutan Isopren Chlorosulfiertes Polyethylen Chloriertes Polyethylen Vinyliden Fluorid Hexafluorpropylen Fluoriertes Ethylen Propylen Polyester Urethan Polyvinylchlorid Polyamide
Para/Natural Butadiene Buna - S Chloropren Nitril / Buna N Polyacrylat Epichlorhydrin Ethylen-Propylen Butyl Hypalon Chloriert Polyethylen Viton FEP (Teflon) Polyurethan PVC Nylon
Ketone: Acetone, methyl ketone, isobutyl ketone, methyl ethyl, methyl isobutyl Alcohols: methyl, ethyl, butyl, anyl, isopropoyl, decyl, isobutyl diacteone, ethyl hexanol Aromatics: benzene, cumene, p-cumene, naphtalene, toluene, xylene cresol, styrene, cyclohexane Halogenics: chloroform, dichlorobenzene, dichlorethylene, methylenbromide, methylenchloride, benzylchloride, carbon tetrachloride, trichlorethan, carbon disulphite, turpentine, perchlorethylene, dichlorethane Amines: aniline, ethyl diamine, diethanol amine, triethanolamine dimenthyl amine, monoethanolamine Esters: butyl acetate, emthyl acetat, anyl acetate, isobutyl acetate Alifatics: propan, butan, pentane, hexane, heptane, dipentene, tripropylene
Swell Resistance of Rubbers MINERAL OIL HIGH ANILINE NR- Poly Isopren High Swell SBR - Styrol Butadien High Swell EPDM - Ethylen Propylen High Swell NBR - Acryl Nitrile Crimp CR - Poly Chloropren Low Swell or Crimp FKM - Fluorid Minor Swell
RUBBER TYPE
MINERAL OIL LOW ANILINE Medium - High Swell Medium - High Swell Medium - High Swell Low Swell High Swell Minor Swell
Mento Hoses and Couplings Catalogue
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18. Technical Information
Conversion Factors Temperatures Lengths °C Feet Meter Inch/mm °F °F °C 1 0.3048 3/16” = 4.8mm -45.6 -50 -58.0 2 0.6096 1/4” = 6.3mm -40.0 -40 -40.0 3 0.9144 5/16” = 7.9mm -34.5 -30 -22.0 4 1.2192 3/8” = 9.5mm -31.7 -25 -13.0 -28.9 -20 -4.0 5 1.5240 1/2” = 12.7mm -26.1 -15 5.0 6 1.8288 5/8” = 15.9mm -23.2 -10 14.0 7 2.1336 3/4” = 19.1mm -20.5 -5 23.0 8 2.4384 1” = 25.4mm -17.8 0 32.0 9 2.7432 1 1/4” = 31.8mm -15.0 5 41.0 10 3.0480 1 1/2” = 38.1mm -12.2 10 50.0 20 6.0960 1 3/4” = 44.5mm -9.5 15 59.0 30 9.1440 2” = 50.8mm -6.7 20 68.0 -3.9 25 77.0 40 12.1920 2 1/2” = 63.5mm -1.1 30 86.0 50 15.2040 3” = 76.1mm 1.7 35 95.0 60 18.2880 3 1/2” = 88.9mm 4.5 40 104.0 70 21.3660 4” = 101.6mm 7.2 45 113.0 80 24.3840 4 1/2” = 114.3mm 10.0 50 122.0 90 27.4320 5” = 127.0mm 12.8 55 131.0 100 30.4800 5 1/2” = 139.7mm 15.6 60 140.0 150 45.7200 6” = 152.0mm 18.3 65 149.0 21.1 70 158.0 200 60.9600 7” = 177.8mm 23.9 75 167.0 250 76.2000 8” = 203.0mm 26.7 80 176.0 300 91.4400 10” = 254.0mm 29.4 85 185.0 350 106.6800 12” = 304.8mm 32.2 90 194.0 400 121.9200 14” = 355.6mm 35.0 95 203.0 450 137.1600 16” = 406.4mm 37.9 100 212.0 500 152.4000 43.3 110 230.0 48.8 120 248.0 1 m = 39.37 inch = 3.2808 feet 54.4 130 266.0 1 inch = 2.54 cm 60.0 140 284.0 65.5 150 302.0 1 cm = 0.3937 inch 71.0 160 320.0 76.6 170 338.0 82.1 180 356.0 87.8 190 374.0 93.3 200 392.0 98.9 210 410.0 104.4 220 428.0 110.0 230 446.0 Fahrenheit 5/9 x (F-32) = °C Celsius 9/5 x (C+32) = °F °R 5/4R = °C °R 9/4R +32 = °F Pressures Conversiontable for pressure-units (approx. values) bar kp/cm2 psi N/cm2 kPa MPa bar 1 1 14.5 10 100 0.1 kp/cm2 1 1 14.5 10 100 0.1 psi 0.07 0.07 1 0.7 7 0.007 N/cm2 0.1 0.1 0.7 1 10 0.01 kPa 0.01 0.01 7 0.1 1 0.001 MPa 0.1 0.1 145 100 1000 1
Conversion Factors
Unit Factor Converted Unit 1 m (meter) 1000 mm (millimeter) 1 m (meter) 1,09362 yard 1 m (meter) 3,28084 foot 1 mm (millimeter) 0,001 m (meter) 1 mm (millimeter) 0,03937 Inch 1 inch 25,4 mm (millimeter) 1 inch 0,0254 m (meter) 1 foot 0,3048 m (meter) 1 yard 0,9144 m (meter) Fº Cº x 1,8 + 32 Fº (Fahrenheit) Cº (Fº - 32): 1,8 Cº (Celsius) Example: 1 m = 3,28084 feet ; 1 inch = 25,4mm Example: + 100ºC = + 212ºF bar 0,00134 0,0025 0,0339 PSI 0,0194 0,036 0,492 MPa 0,003 1 atm 0,001 0,0025 0,0335 m H20 (20ºC) 0,014 0,026 0,346 in Hg (20ºC) 0,0396 0,074 1,001 in H20 (20ºC) 0,538 1,005 13,623 mm Hg (20ºC) 1,005 1,88 25,43 Example: 1 MPa = 14,51 PSI ; 1Mpa = 10,0bar
DN15 D k g Nr. n DN20 D g k Nr. n DN25 D g k Nr. n DN32 D g k Nr. n DN38 D g k Nr. n DN50 D g k Nr. n DN65 D g k Nr. n DN80 D g k Nr. n DN100 D g k Nr. n DN125 D g k Nr. n DN150 D g k Nr. n DN200 D g k Nr. n
Pressure Conversion 0,069 1,001 0,007 0,068 0,704 2,04 27,73 51,75
0,098 1,421 0,0098 0,097 1,000 2,89 39,38 73,51
PN6
PN6
PN6
PN6
PN6
PN6
PN6 160 110 130 4 14 PN6 190 128 150 4 18 PN6 210 148 170 4 18 PN6 240 178 200 8 18 PN6 265 202 225 8 18 PN6 320 258 280 8 18 1,00 14,504 0,10 0,987 10,207 29,53 401,86 750,06
Flange Sizes PN10/ PN25 95 94 65 65 45 45 4 4 14 14 PN10/ PN25 105 105 58 58 75 75 4 4 14 14 PN10/ PN25 115 115 68 68 85 85 4 4 14 14 PN10/ PN25 140 140 78 78 100 100 4 4 18 18 PN10/ PN25 150 150 88 88 110 110 4 4 18 18 PN10/ PN25 140 165 90 102 110 125 4 4 14 18 PN10/ PN25 185 185 122 122 145 145 4 8 18 18 PN10/ PN25 200 200 138 138 160 160 8 8 18 18 PN10/ PN25 220 235 158 162 180 190 8 8 18 22 PN10/ PN25 250 270 188 188 210 220 8 8 18 26 PN10/ PN25 285 300 212 218 240 250 8 8 22 26 PN25 PN10/ 340 340 268 242 295 295 8/12 12 22 26 1,01 14,69 0,101 1,00 10,34 29,91 407,09 759,81
ASA150 88.9 60.3 34.9 4 15.9 ASA150 98.4 42.9 69.9 4 15.9 ASA150 108.0 50.8 79.4 4 15.9 ASA150 117.5 63.5 88.9 4 15.9 ASA150 127.5 73.0 98.4 4 15.9 ASA150 15.4 92.1 120.7 4 19 ASA150 177.8 104.8 139.7 4 19 ASA150 190.5 127.0 152.4 4 19 ASA150 228.6 157.2 190.5 8 19 ASA150 254.0 185.7 215.9 8 22.2 ASA150 279.4 215.9 241.3 8 22.2 ASA150 342.9 269.9 298.5 8 22.2 10,0 145,04 1,00 9,87 102,074 295,30 4018,65 7500,62
ASA300 95.3 66.7 34.9 4 15.9 ASA300 117.5 42.9 82.5 4 19 ASA300 123.8 50.8 88.9 4 19 ASA300 133.4 63.5 98.4 4 19 ASA300 155.6 73.0 114.3 4 22.2 ASA300 165.1 92.1 127.0 8 19 ASA300 190.5 104.8 149.2 8 22.2 ASA300 209.6 127.0 168.3 8 22.2 ASA300 254.0 157.2 200.0 8 22.2 ASA300 279.4 185.7 235.0 8 22.2 ASA300 317.5 215.9 269.9 12 22.2 ASA300 381.0 269.9 330.2 12 25.4 100 1450,38 10,00 98,69 1020,736 2953 40186,47 75006,17
Mento Hoses and Couplings Catalogue
18. Technical Information
Remarks on Use of Hoses Chemical Hose and Resistance to Chemicals Besides the before mentioned standards some common ruler are: * Clean hoses after use * select the correct method of cleaning according to hose type * select the correct hose according to application, chemical conveyed, pressure and temperature * use appropriate procedures for fitting hose couplings * issue maintenance schedules and controle hoses for visible damages or changes in structure
Cleaning of Hoses Most common cleaning procedures are flushing with hot or cold water, use of diluted acids and bases, commercial detergents and steam. Always make sure that the correct method of cleaning is selected according to hose type. When steam cleaning hoses with saturated steam in open systems following time/temperature ratings are recommended and should not be exceeded: NR CIIR EPDM UHPE-X CPE
100°C 140°C 150°C 130°C 130°C
20 min 30 min 20 min 30 min 30 min
SBR NBR PE-X FEP
110°C 130°C 110°C 150°C
20 min 20 min 20 min 20 min
For Food hoses we recommend to clean them with a 0,4% natriumchloride and 0,5% natriumhydroxide solution at 40°C for 24- 48 h before first use. Goodyear products included in this catalogue are all approved for S.I.P., C.I.P. and C.O.P cleaning systems. Special care must be taken when steamcleaning hose with plastic liners as PE-X, FEP, UHPE-X or Polyamide. Avoid direct contact with hose liner and steam lance in order to avoid melt through.
Lengths change and Endloads of Hoses Change in lenghts of hoses under pressure or vacuum are specified in most standards for hoses. Care should be taken that these figures are reflected in the calculation of assembly lenghts in order to avoid undue stresses or damages. Hoses also must be fitted free of torsion.
As a general rule each 10°C increase of temperature above ambient will reduce burstpressures by ca 20%. Care must be taken when applying pressure ratings to PVC spiral hose. The burstpressures quoted in this catalogue are indictaive only. PVC spiral hose should only be used in short lenghts, ambient temperature applications for pressure.
Vacuum and Temperature All Vacuum ratings mentioned in this catalogue are valid at ambient temperature of 23°C only. Higher Temperatures, abrasive materials or chemical aggressive media can strongly influence these values. We recommend to contact us in these cases. When selecting a hose particulary for high vacuum applications a physical phenomen should be considered. If a water column rises at high speed through a hose and a valve or the pump is suddenly shut off, the rising water column creates a very high vacuum at the end of the rising column. This short term vacuum can surpass actual pump and system ratings. Irreversible damage to the hose can be the result.
Bend Radius All Bend radius mentioned in this catalogue are valid at ambient temperature of 23°C only. Make sure that hoses are fitted in radus equal or bigger then specified in order to avoid permanent damage to hose structure. At higher temperatures or if used with high abrasives bend radius should be increased with minimum 30%. When fitting in Ushape or equalizing height levels make sure that sufficent hose lengths is used or appropriate couplings including bends are selected. Under certain conditions like strong mechanical and/or chemical attack or very short lengths the use of fixed piping or compensators is recommened.
Abrasion Resistance
Every hose is capable to accept a certain amount of loads, like pressureload, weight of hose, medium and couplings and extra mechanical stresses. For safety reason the maximum endload of a hose should not exceed the pressureload at working pressure including correction factors ofor temperatures.
Abrasion resistance of rubbers and plastics can be determined theoretically with a degree of accuracy. However practical implications are a different thing.
ENDLOAD is the sum of all pressureloads, weights and mechanical forces acting on a hose.
The DIN 53516 test is a rather simple grinding test where abrasion is determined as a function of volume loss in mm3. These tests however do not take a number of practical implications into consideration.
Pressure and Temperature All pressureratings mentioned in this catalogue are subject to ambient temperatures at 23°C. Higher or lower temperatures can reduce the pressure carrying capacities of hoses considerably by changing physical properties of the compound or the reinforcements. For example on oil hoses based on NBR rubber the burstpressure can reduce at 90°C up to 40%. This means an oil hose rated at 16 Bar WP at 23°C can safely be used with working pressures of 10 Bar at 93°C. Following safety should be applied at 23 °C (WP : BP) Water up to 10 Bar 1:3 Fluids above 10 Bar 1:4 Air or inert gases 1:4 Fluids which can change into the gaseous phase under change of pressure 1:5 Steam 1:10 Hot water 70 - 90°C 1:4 For thermoplastic hoses, especially PVC hoses pressure/temperature charts are available. PVC hoses mentioned in this catalogue can generally be used for temperatures up to 60 °C.
In order to enable users to compare abrasion resistance of various hoses, DIN 53516 or ASTM tests are employed.
Noteworthy are points like hose construction, assembly of hose lines or flow characteristics which are not covered by a.m. standards. In praxis a number of cases are known where a hose with higher abrasion value is outlasting a hose with a low abrasion factor. Abrasion is basically the impact of a particle onto the hose liner. This particle can range in size from an atom to a sizable stone. Upon contact with the hoseliner part of the kinetic energy is absorbed and the particle rebounces. The created pressure of impact is lower on rubber than on steel under certain conditions, thus giving rubber a better abrasion resistance. For example at temperatures up to 70°C and impact angles between 25-70° classical BR or NR rubbers outclass steel products. This is in essence also true for plastics. Depending on temperature and impact angle some plastics reach or outclass the abrasion resistance of rubbers. In practice two types of abrasion can be considered: – abrasive, caused by impact pressure, angle and geometry of the particle – heat abrasion caused by friction heat built up mainly with pneumatic transport.
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Mento Hoses and Couplings Catalogue
18. Technical Information
Remarks on Use of Hoses Abrasion Resistance
Metallic conductors
The hoses mentioned in this catalogue are suitable for most standard applications. However please make sure that when installing hoses, sufficient bent radius are applied.
Normally three types of metallic conductors are used in hoses:
For special applications involving high flow speeds or large bore hose we require the following information: – Flow speed in m/sec – pneumatic or hydraulic transport – Hardness, type and shape of material conveyed – dimension and specific gravity of material conveyed – Drawings or templates if available In order to select a hose from our range following thumb rule may be used to select tube material: – hydraulic transport NR beige or black 40-50 Shore A – pneumatic transport NR/BR blend black, 60-70 Shore A electrically conductive The most common plastics used in abrasive applications are Polyuethane or UHPE-X. Polyurethane is available in a number of grades and shore hardness and can thus replace rubber in a number of applications for temperatures ranging from 20°C to 50°C. UHPE-X is suitable for hydraulic transport of abrasives or pneumatic transport at low flow speeds and impact pressures. Cover abrasion resistance of bulk material hoses is generally considerable lower if compared to tube compounds. Suitable means of protection in service can prolongue hose life considerably, as many hoses have to be withdrawn from service more owing to cover abrasion than tube abrasion
Electrical Conductivity Any conductor moving through a magnetic field induces a voltage into the conductor. Dustparticles, liquids, abrasives or even gases which are conveyed at high speeds through a hose will be induced by this voltage. This voltage in turn will be transfered into a hose. If this hose is cannot discharge this voltage to earth, voltage will be further induced up to a point where the natural resistance of the hose breaks down. In this case spontaneous discharge of this voltage will take place, causing considerable risks to machinery or operators. Depending on the nature of discharge this can lead to serious injuries or expolsion of any combustible atmosphere. In practise two methods are being used to discharge static electricity from a hose: – electrically conductive compounds – metallic conductors In effect every rubber is to a certain effect conductive. However without including certain additives like carbon black, the specific resistance is too high to be of any practical value. By blending conductive carbon blacks into the compound, the specific resistance will be reduced. In theory a high conductive hose could be manufactured, but limits are attached to this. Every electron movement generates heat. Combine this heat built up with the heat created by the friction of the medium a point is reached where the hose itself gets damaged or its molecular structure is changing. This can lead even to a further decrease of resistivity and subsequent sudden combustion. In practise black conductive compounds are seperated into two categories: – ANTISTATIC R 106 - 108 Ohm – CONDUCTIVE R 104 - 106 Ohm Please note that specific values of resistivity change with time in service owing to swell, abrasion or ageing. All colored compounds are to be considered non conductive. Metallic conductors must be used to assure suitable means of static discharge.
– strands of copper or stainless steel wire incorporated into the hose body and which are connected directly or via the couplings to earth. – Steel wire helixes – steel cord or braids as found in hydraulic – or steam hoses The method of obtaining a conductive connection may vary form country to country. Most common standards are DIN 2823, EN 12115, VG 95955, BG Chemie and various British and SAE Standards.
Antistatic Properties For example BG Chemie (German safety standard for chemical industries) following recommendations are made: – Oil- and Chemicalhoses Rmax 106 Ohm – idem, but in EX atmospheres Rmax 104 Ohm – Abrasion hoses in EX atmospheres Rmax 104 Ohm An exception to the points points mentioned before are hoses used in metallurgical applications, coating equipment, electric furnace ovens or as cable protection hose. In these applications non conductive hose is used to avoid flash over. Typical voltages encountered are 1000 Volt DC in cathodic plating equipment. If a conductive hose is used in this application, most certainly flash over will take place, damaging the hose and equipment. Only high grade compounds are utilized to achieve the necessary isolating values and dielectrical strenghts.
Chemical Hose and Resistance to Chemicals All temperatures mentioned in this catalogue for chemical hoses are general indications for a certain material based upon suppliers specification. Depending on chemical in use, these temperatures may vary considerably. For individual resistance of a certain hose we kindly ask you to contact us. By purpose no general resistance chart is included in this catalogue, as resistance ratings may vary between suppliers. A good example is PE-X, where materials from various suppliers show differences in temperaturerange and chemical resistance. For all products mentioned in this catalogue detailed resistance charts are available at Peters Rubber & Plastics. In order to make a recommendation following information is required: – name of chemical conveyed, formula or CAS number – pure chemical, impuritiesor blends – pressure, temperature and vacuum – intermittend or continious use and information about cleaning procedures – mechanical loads and application – U.S. government or federal regulations if applicable Please note that cover compounds with identical material designations as tube compound will behave differently when coming into contact with chemicals. On cover compounds emphasis is laid upon weathering and abrasion resistance, thus sacrifying chemical resistance. Guidelines for use maintanance of chemical hoses are DIN2823, BG Chemie, EN 12115 or any local or national regulations which may apply.
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