ANSI/AWWA C510-1997 双止回阀防回流组件

作者:标准资料网 时间:2024-05-12 18:13:46  浏览:9854   来源:标准资料网

【英文标准名称】:DoubleCheckValveBackflow-PreventionAssembly
【原文标准名称】:双止回阀防回流组件
【标准号】:ANSI/AWWAC510-1997
【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】:Watersupply;Watervalves
【摘要】:Coversthedoublecheckvalvebackflow-preventionassembly.Theassemblyshallbeforoperationonhot-orcold-waterlinesandcapableofwithstandingaworkingwaterpressureofatleast150psi(1,034kPa)withoutdamagetotheworkingpartsorimpairmentoffunction.Covershot-andcold-waterdoublecheckvalvebackflow-preventionassemblies.Allassembliesshallbedesignedto,ataminimum,operateatatemperaturerangeof33oF-110oF(1oC-43oC).Hot-waterassembliesshallbedesignedtooperateinwaterataminimumtemperaturerangeof33oF-180oF(1oC-82oC).Acompleteassemblyconsistsoftwointernallyloaded,independentlyoperatingcheckvalves,locatedbetweentwotightlyclosing,resillient-seatedshutoffvalves,withfourproperlyplacedresillient-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