安全阀-RH4系列

ReliefValves(RH4Series)Catalog4131-RHRevised,April2001IntroductionParkerRH4ReliefValvesaredesignedsuchthatwhentheupstreampressureexceedstheclosingforceexertedbythespring,thelowerstemopens,permittingflowthroughthevalve.Flowthroughthevalveincreasespropor-tionatelytotheincreaseinupstreampressure.2Features•Pressuresettingsareexternallyadjustablewhilethevalveisinoperation.Eightdifferentspringrangesprovidegreatersystemsensitivityandenhancedperformance.•Capturedmoldedseatdesignisblow-outandchipresistant.•ManualOverrideoptionwithpositivestemretractionisavailableforpressuresupto1500psig(103bar).Thisoptionpermitstheusertorelieveupstreampressurewhilemaintainingthepredeterminedcrackingpressure.•Standardlowfrictionsynergisticcoatingofbodybonnetimprovescrackandre-sealperformance.•Colorcodedspringsandlabelsindicatespringcrackingrange.•Backpressurehasminimumeffectoncrackingpressure.•Lockwirefeaturesecuresagivenpressuresetting.Specifications•Workingpressure:Upto6000psig(414bar)CWP.Upto8000psig(552bar)duringreliefwithnointernalsealdamage.•Crackingpressure:Eightsprings,from50psigto6000psiginthefollowingranges:50-350psig,350-750psig,750-1500psig,1500-2250psig,2250-3000psig,3000-4000psig,4000-5000psig,5000-6000psig(Seetableonpage3forbarequivalents).•TemperatureRating:Buna-NRubber–30°Fto225°F(–34°Cto107°C)HighlyFluorinatedFluorocarbonRubber–20°Fto200°F(–29°Cto93°C)EthylenePropyleneRubber–70°Fto275°F(–57°Cto135°C)FluorocarbonRubber–10°Fto400°F(–23°Cto204°C)NeopreneRubber–45°Fto250°F(–43°Cto121°C)AvailableEndConnectionsFlowCalculationsInletPressureWaterAirPressureDrop∆P@60°F(16°C)@60°F(16°C)psigbarpsigbargpmm3/hrscfmm3/hr10.10.40.14.37.01007100.71.30.313.221.0503.52.90.724.237.3100.71.30.340.969.01000691006.94.10.9123.5208.450034.59.22.1219.1368.61006.94.10.9220.1373.53000207100069.013.02.9590.81002.41500103.415.93.6652.11105.7100069.013.02.9916.81556.260004132000137.918.34.21179.72001.33000206.822.55.11301.62207.0RH4SeriesReliefValveParkerHannifinCorporationInstrumentationValveDivisionJacksonville,AlabamaA-TwoferruleA-LOK®compressionportF-ANSI/ASMEB1.20.1,InternalpipethreadsM-ANSI/ASMEB1.20.1,ExternalpipethreadsZ-SingleferruleCPITMcompressionportKF-BritishStandardBS21(ISO7-1),InternalpipethreadsKM-BritishStandardBS21(ISO7-1),Externalpipethreads3RH4SeriesReliefValvesParkerHannifinCorporationInstrumentationValveDivisionJacksonville,AlabamaModelShown:4M4F-RH4A-VT-SS-MN-K2ModelShown:4A-RH4A-BNT-SS-K1FlowData/DimensionsEndConnectionsFlowDataDimensions†BasicPart(Inlet)(Outlet)OrificeCvxT‡ABNumberPort1Port2Inchmminchmminchmm4A-RH4A1/4A-LOK®Compression1/4A-LOK®Compression1.4436.61.6040.64Z-RH4A1/4CPI™Compression1/4CPI™Compression1.4436.61.6040.64M4A-RH4A1/4MaleNPT1/4A-LOK®Compression1.1930.21.6040.64M4Z-RH4A1/4MaleNPT1/4CPI™Compression1.1930.21.6040.64M4F-RH4A1/4MaleNPT1/4FemaleNPT1.1930.21.1729.74KF-RH4A1/4FemaleBSP/ISOTapered1/4FemaleBSP/ISOTapered1.1930.21.1729.74KM-RH4A1/4MaleBSP/ISOTapered1/4MaleBSP/ISOTapered1.1930.21.1729.7M6A-RH4A6mmA-LOK®Compression6mmA-LOK®Compression1.4436.61.6040.6M6Z-RH4A6mmCPI™Compression6mmCPI™Compression1.4436.61.6040.6M8A-RH4A8mmA-LOK®Compression8mmA-LOK®Compression1.4436.61.6040.6M8Z-RH4A8mmCPI™Compression8mmCPI™Compression1.4436.61.6040.6()Denotesdimensionsinmillimeters7/8Hex1Hex1.26(32.0).59(15.0)3.25Max(82.8)2.72Min(69.1)AB1.38(35.1)4.14(105.2)AB.59(15.0)7/8Hex1Hex†ForCPI™andA-LOK®,dimensionsaremeasuredwithnutsinthefingertightposition.‡TestedinaccordancewithISAS75.02.GasflowwillbechokedwhenP1-P2/P1=xT.SpringKitsCrackingPressureCrackingPressureKitPartNumberRange(psig)Range(bar)ColorCodeKIT-RH4SP-50-35050-3503.4-24.1GrayKIT-RH4SP-350-750350-75024.1-51.7RedKIT-RH4SP-750-1500750-150051.7-103.4OrangeKIT-RH4SP-1500-22501500-2250103.4-155.1YellowKIT-RH4SP-2250-30002250-3000155.1-206.8LightGreenKIT-RH4SP-3000-40003000-4000206.8-275.8LightBlueKIT-RH4SP-4000-50004000-5000275.8-344.7VioletKIT-RH4SP-5000-60005000-6000344.7-413.7LemonYellowSpringKitContains:SpringCodedlabelPTFEwashersLockingwire/leadsealInstallationInstructions0.143.60.410.674RH4SeriesReliefValvesParkerHannifinCorporationInstrumentationValveDivisionJacksonville,AlabamaSealKitsSealKitSeat/SealOrderNumberMaterialKIT-RH4-VTFluorocarbonRubberKIT-RH4-BNTBuna-NRubberKIT-RH4-EPRTEthylenePropyleneRubberKIT-RH4-NETNeopreneRubberKIT-RH4-KZTHighlyFluorinatedFluorocarbonRubberSealKitContains:StemSealPTFEBack-upRingBonnetSealSeatSealAssemblyMandrelMaintenanceInstructionsOfferofSaleTheitemsdescribedinthisdocumentareherebyofferedforsalebyParkerHannifinCorporation,itssubsidiariesoritsauthorizeddistributors.Thisofferanditsacceptancearegovernedbytheprovisionsstatedinthe“OfferofSale”locatedinCatalog4110-UNeedleValves(USeries).FAILURE,IMPROPERSELECTIONORIMPROPERUSEOFTHEPRODUCTSAND/ORSYSTEMSDESCRIBEDHEREINORRELATEDITEMSCANCAUSEDEATH,PERSONALINJURYANDPROPERTYDAMAGE.ThisdocumentandotherinformationfromParkerHannifinCorporation,itssubsidiariesandauthorizeddistributorsprovideproductand/orsystemoptionsforfurtherinvestigationbyusershavingtechnicalexpertise.Itisimportantthat