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【英文标准名称】:ULStandardforSafetyStrengthofBodyandHydraulicPressureLossTestingofBackflowSpecialCheckValves
【原文标准名称】:专用回流阀水压损失和主体强度试验UL安全性标准
【标准号】:UL1469BULLETIN-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007-06-20
【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】:
【英文主题词】:
【摘要】:Theserequirementscoverbackflowspecialcheckvalvesof3/4-inch(19.1-mm)through10-inch(254-mm)nominalpipesizeusedinpipingsystemssupplyingwaterforfireprotectionservice.ThebackflowspecialcheckvalvescoveredbytheserequirementsareintendedforinstallationanduseinaccordancewiththeStandardsfor:a)LowExpansionFoamandCombinedAgentSystems,NFPA11;b)InstallationofSprinklerSystems,NFPA13;c)InstallationofStandpipeandHoseSystems,NFPA14;d)WaterSprayFixedSystemsforFireProtection,NFPA15;e)DelugeFoam-WaterSprinklerandSpraySystems,NFPA16;f)InstallationofCentrifugalFirePumps,NFPA20;g)WaterTanksforPrivateFireProtection,NFPA22;andh)InstallationofPrivateFireServiceMainsandTheirAppurtenances,NFPA24.Aproductthatcontainsfeatures,characteristics,components,materials,orsystemsnewordifferentfromthosecoveredbytherequirementsinthisstandardandthatinvolveariskoffire,electricshock,orinjurytopersonsshallbeevaluatedusingtheappropriateadditionalcomponentandend-productrequirementsasdeterminednecessarytomaintaintheacceptablelevelofsafetyasoriginallyanticipatedbytheintentofthisstandard.Aproductwhosefeatures,characteristics,components,materials,orsystemsconflictwithspecificrequirementsorprovisionsofthisstandardcannotbejudgedtocomplywiththisstandard.Whereconsideredappropriate,revisionofrequirementsshallbeproposedandadoptedinconformancewiththemethodsemployedfordevelopment,revision,andimplementationofthisstandard.
【中国标准分类号】:J16
【国际标准分类号】:23_100_40
【页数】:
【正文语种】:英语