ASME B16.34-2009 阀门 带法兰、有螺纹和焊接端部.pdf
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ASMEB16.34-2009阀门.带法兰、有螺纹和焊接端部ASMEB16.34-2009ValvesFlanged,ThreadedandWeldingEndThisstandardappliestonewconstructionandcoverspressure-temperatureratings,dimensions,tolerances,materials,nondestructiveexaminationrequirements,testing,andmarkingforcast,forged,andfabricatedflanged,threaded,andweldingendandwaferorflangelessvalvesofsteel,nickel-basealloys,andotheralloysshowninTable1.Waferorflangelessvalves,boltedorthrough-bolttypes,thatareinstalledbetweenflangesoragainstaflangearetreatedasflanged-endvalves.AlternativerulesforNPS2½andsmallervalvesaregiveninMandatoryAppendixV.
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