API STD 526-1995 Flanged Steel Pressure Relief Valves.pdf

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1、COPYRIGHT2000AmericanPetroleumInstituteInformationHandlingServices,2000COPYRIGHT2000AmericanPetroleumInstituteInformationHandlingServices,2000COPYRIGHT2000AmericanPetroleumInstituteInformationHandlingServices,2000COPYRIGHT2000AmericanPetroleumInstituteInformationHandlingServices,2000COPYRIGHT2000Am

2、ericanPetroleumInstituteInformationHandlingServices,2000COPYRIGHT2000AmericanPetroleumInstituteInformationHandlingServices,2000APISTD*52695..07322900545996353..FlangedSteelPressureReliefValvesSECTION1-GENERAL1.1ScopeNACEInt'13MR0175-90SulfideStressCrackingResistantThisstandardisapurchasespecificati

3、onforflangedsteelMetallicMaterialsforOilFieldEquip•pressurereliefvalves.Basicrequirementsaregivenformentdirectspring-loadedpressurereliefvalvesandpilot-operatedpressurereliefvalvesasfollows:1.3Definitionsa.Orificedesignationandarea.PressurereliefvalveterminologyisdefinedinAPIb.Valvesizeandpressurer

4、ating,inletandoutlet.RecommendedPractice520,PartI.c.Materials.d.Pressure-temperaturelimits.1.4Responsibilitye.Center-to-facedimensions,inletandoutlet.Thepurchaserisprimarilyresponsibleforthefollowing:Fortheconvenienceofthepurchaser,asamplespecifica•tionsheetisgiveninAppendixA.a.Selectingthetypeofpr

5、essurereliefvalveandtherequiredNameplatenomenclatureandrequirementsforstampingpressure-temperatureratings.aredetailedinAppendixB.b.Specifyingmaterialsthatwillsatisfactorilyresistcorro•sionfromtheprocessfluidandenvironmentalconditions.1.2ReferencedPublicationsc.Selectingtheminimumrequiredorificearea

6、baseduponrelievingconditionsderivedfromfullknowledgeofthepres•Thelatesteditionorrevisionofthefollowingstandards,sure-relievingsystemandtherequirementsoftheapplicablecodes,andspecificationsshall,totheextentspecified,formcodesandregulations.apartofthisstandard.d.Providingdataforsizingandselection.API

7、ThemanufacturerisprimarilyresponsiblefortheRP520Sizing,Selection,andInstallationofPressurefollowing:RelievingDevicesinRefineries,PartsIandIIStd527SeatTightnessofPressureReliefValvesa.Designingandmanufacturi