ANSI/AWWA C511-1997 减压防回流组件

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【英文标准名称】:ReducedPressurePrincipleBackflowPreventionAssembly
【原文标准名称】:减压防回流组件
【标准号】:ANSI/AWWAC511-1997
【标准状态】:作废
【国别】:美国
【发布日期】:
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:AWWA
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Checkvalves;Watersupply
【摘要】:Coversthereduced-pressureprinciplebackflow-preventionassembly.Theassemblyshallbecapableofwithstandingaworkingwaterpressureofatleast150psi(1.034kPa)withoutdamagetoworkingpartsorimpairmentoffunctionandforoperationonhotorcoldwaterlines.Covershotandcoldwaterreduced-pressureprinciplebackflow-preventionassemblies.Allassembliesshallbedesignedataminimumtooperateinwateratatemperaturerangeof33-110F(1-43C).Hotwaterassembliesshallbedesignedataminimumtooperateinwateratatemperaturerange33-180F(1-82C).Acompleteassemblyconsistsofamechanical,independentlyoperating,hydraulicallydependentreliefvalvelocatedbetweentwoindependentlyoperating,internallyloadedcheckvalvesthatarelocatedbetweentwotightlyclosing,resilient-seatedvalveswithfourproperlyplacedresilient-seatedtestcocks.
【中国标准分类号】:
【国际标准分类号】:93_025;23_060_50
【页数】:
【正文语种】:英语