作者:标准资料网 时间:2024-04-29 03:22:33   浏览:9766   来源:标准资料网

【英文标准名称】:ValvesforanhydrousammoniaandLP-gas(otherthansafetyrelief)
【原文标准名称】:无水氨和液化石油气阀门(不包括安全卸荷阀)
【标准号】:UL125-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007-04-18
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:氨;压缩气体;气阀;气体;低压;石油气;测试;阀门
【英文主题词】:Ammonia;Compressedgases;Gasvalves;Gases;Lowpressure;Petroleumgas;Testing;Valves
【摘要】:Theserequirementscoverthefollowingtypesofanhydrousammoniaandliquefiedpetroleumgas(LP-Gas)valvesforuseattemperatureswithintherangeofminus40鳩(minus40鳦)to130鳩(55鳦):a)Shut-offValves,b)ExcessFlowValves,c)BackPressureCheckValves,d)FillerValves,e)VaporReturnValves,andf)ActuatedLiquidWithdrawalExcess-FlowValves.ValvescoveredbytheserequirementsareforuseinsystemsandfacilitiescoveredinthefollowingStandards:a)SafetyRequirementsfortheStorageandHandlingofAnhydrousAmmonia,ANSI/CGAG2.1(ANSIK61.1);b)LiquefiedPetroleumGasCode,NFPA58;andc)UtilityLP-GasPlantCode,NFPA59.Theserequirementsdonotcovershut-offvalvesofthetypecommonlyreferredtoas"cylindervalves"usedoncontainersconstructedunderDepartmentofTransportation(DOT)Specifications.TheserequirementsdonotapplytoLP-Gasvalvesforuseoncontainersorinsystemsforthefollowing:a)Refrigeratedstoragesystemsandb)Marineandpipelineterminals,chemicalplants,naturalgasprocessingplants,refineriesortankfarms,where"tankfarms"donotincludestorageatindustriallocations.Theserequirementsdonotapplytovalvesforanhydrousammoniaforuseoncontainersorinsystemsforthefollowing:a)Refrigeratedstoragesystems,b)Ammoniamanufacturingplants,c)Refrigerationplantswhereammoniaisusedsolelyasarefrigerant,andd)Ammoniatransportationpipelines.Exceptforsuchobservationsasarerequiredtoascertainperformancecharacteristics,theassigningofpressureand/orflowcapacityratingsisnotwithinthescopeoftheserequirements.Aproductthatcontainsfeatures,characteristics,components,materials,orsystemsnewordifferentfromthosecoveredbytherequirementsinthisstandard,andthatinvolvesariskoffireorofelectricshockorinjurytopersonsshallbeevaluatedusingappropriateadditionalcomponentandend-productrequirementstomaintainthelevelofsafetyasoriginallyanticipatedbytheintentofthisstandard.Aproductwhosefeatures,characteristics,components,materials,orsystemsconflictwithspecificrequirementsorprovisionsofthisstandarddoesnotcomplywiththisstandard.Revisionofrequirementsshallbeproposedandadoptedinconformancewiththemethodsemployedfordevelopment,revision,andimplementationofthisstandard.
【中国标准分类号】:J16
【国际标准分类号】:23_060_40
【页数】:
【正文语种】:英语