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【英文标准名称】:Districtheatingpipes-Preinsulatedbondedpipesystemsfordirectlyburiedhotwaternetworks-Fittingassembliesofsteelservicepipes,polyurethanethermalinsulationandoutercasingofpolyethylene;GermanversionEN448:2003
【原文标准名称】:区域供暖管道.直埋式热水供应网预隔热连接管道系统.聚氨酯绝热和聚乙烯外覆层钢管成套配件
【标准号】:DINEN448-2003
【标准状态】:作废
【国别】:德国
【发布日期】:2003-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:聚氨酯;绝缘;钢管;定义;规范(验收);管道配件;尺寸;管道;远距离供热;组合管;隔热;装箱;配件;温水;水管;组合套管;监督(认可);聚乙烯;作标记;区域供暖;硬质泡沫塑料;管道工程系统;套管;试验;管道系统;鼓箍;热水供应网;水管系统;地下;焊工工作;地下装置;长距离加热系统;焊接工艺;密度
【英文主题词】:Casing;Compositejacketpipes;Compositetubes;Definitions;Density;Dimensions;Distantheating;Districtheating;Fittings;Hotwaternetworks;Insulations;Jackettubes;Laggingofadrum;Longdistanceheatingsystems;Marking;Pipefittings;Pipesystem;Pipelines;Pipeworksystems;Polyethylene;Polyurethane;Rigidfoams;Specification(approval);Steelpipes;Surveillance(approval);Testing;Thermalinsulation;Underground;Undergroundinstallations;Warmwater;Waterpipesystems;Waterpipes;Weldingprocesses;Weldingwork
【摘要】:ThisEuropeanStandardspecifiesrequirementsandtestmethodsforfittingsofprefabricatedthermallyinsulatedpipe-in-pipeassembliescomprisingasteelservicefittingfromDN20toDN1200,rigidpolyurethanefoaminsulationandanoutercasingofpolyethyleneforuseindirectlyburiedhotwaternetworkswithpreinsulatedpipeassembliesinaccordancewithEN253:2002.Thisstandardcoversthefollowingfittings:Bends,T-pieces,reducersandanchors.Thisstandardappliesonlytoinsulatedfittingassembliesforcontinuousoperationwithhotwateratvarioustemperaturesinaccordancewithclause1ofEN253:2002.GuidelinesforqualityinspectionaregiveninAnnexAofthisstandard.ProceduresforPE-weldingaregiveninAnnexBofthisstandard.Thisstandarddoesnotincluderulesforcalculationofloadsandstresses.#,,#
【中国标准分类号】:Q83
【国际标准分类号】:23_040_40
【页数】:30P;A4
【正文语种】:德语