【英文标准名称】:Threadedpipefittingsinmalleablecastironandcastcopperalloy
【原文标准名称】:可锻铸铁和铸铜合金的螺纹管配件
【标准号】:BS143and1256-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-03-15
【实施或试行日期】:2000-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisBritishStandardspecifiesrequirementsfordesignandperformanceofthreadedpipefittingsinmalleablecastironandcastcopperalloyfortwobasicdesigns:a)BS143,withtaperexternalandtaperinternalthreads;b)BS1256,withtaperexternalandparallelinternalthreads.ThisBritishStandardappliestofittingsinthefollowingcategories:1)category1:BS143designandBS1256design,inalimitedrangeofmalleablecastironfittingsizesandtypeswiththreadsconformingtoBS21(ISO7-1),andthatarenotincludedinBSEN10242;2)category2:BS143designonly,inafullrangeofmalleablecastironfittingsizesandtypeswiththreadsconformingtoANSI/ASMEBl.20.1(NPT);3)category3:BS143designonly,inalimitedrangeofcastcopperalloyfittingsizesandtypes,withthreadsconformingtoBS21(ISO7-1)orANSI/ASMEBl.20.1(NPT).ThesefittingsareforgeneralpurposesfortransmissionoffluidsandgasesuptothelimitsofpressureandtemperaturespecifiedinthisBritishStandard.TheyareintendedforconnectionofelementswiththreadsconformingtoBS21(ISO7-1)orANSI/ASMEB1.20.1(NPT),insizes1/8to6formalleablecastironfittingsandsizes1/8to2forcastcopperalloyfittings.NOTEForuseinconditionsoutsidethepressureandtemperaturelimitsspecifiedinthisBritishStandard,referenceshouldbemadetothemanufacturer.
【中国标准分类号】:V20
【国际标准分类号】:23_040_40
【页数】:30P;A4
【正文语种】:英语