DIN EN 448-2009 区域供热管道.直埋热水网络预装管道系统.供热钢管道,聚氨酯保温层及聚乙烯外层的配件装配,DIN EN 448:2009-07的英文版本

标准号：DIN EN 448-2009
中文标准名称：区域供热管道.直埋热水网络预装管道系统.供热钢管道,聚氨酯保温层及聚乙烯外层的配件装配,DIN EN 448:2009-07的英文版本
英文标准名称：District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; English version of DIN EN 448:2009-07
标准类型：Q83
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q83
国际标准分类号：23.040.40
引用标准：EN 253-2009;EN 287-1;EN 489-2009;EN 571-1;EN 1289;EN 1290;EN 1291;EN 1418;EN 1435;EN 10253-2-2007;EN 12517-1;EN 12814-1;EN 13941;EN 14419-2009;EN 14870-1;EN ISO 5817;EN ISO 8501-1;EN ISO 9692-1-2003;EN ISO 15607;ISO 17636
适用范围：This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulatedpipe-in-pipe assemblies comprising a steel service fitting from DN 20 to DN 1200, rigid polyurethane foaminsulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated pipeassemblies in accordance with EN 253.This European Standard covers the following fittings: bends, T-pieces, reducers, single use compensators andanchors.This European Standard applies only to insulated fitting assemblies and single use compensators for continuousoperation with hot water at various temperatures in accordance with EN 253:2009, Clause 1.This European Standard applies to fitting assemblies with a minimum design pressure of 16 bar (overpressure)complying with EN 13941.Guidelines for quality inspection are given in Annex A of this European Standard.Procedures for PE-welding are given in Annex B of this European Standard.NOTE This European Standard does not include rules for calculation of loads and stresses.