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
发布: 2009年
发布单位: 德国标准化学会
替代标准: DIN EN 448:2016; DIN EN 448 E:2014-04
当前最新: DIN EN 448:2023-08

引用标准: EN 10253-2:2007 EN 12517-1 EN 12814-1 EN 1289 EN 1290 EN 1291 EN 13941 EN 1418 EN 1435 EN 14419:2009 EN 14870-1 EN 253:2009 EN 287-1 EN 489:2009 EN 571-1 EN ISO 15607 EN ISO 5817 EN ISO 8501-1 EN ISO 9692-1:2003 ISO 17636
被代替标准: DIN EN 448:2003 DIN EN 448:2007

适用范围: This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulated pipe-in-pipe assemblies comprising a steel service fitting from DN 20 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated pipe assemblies in accordance with EN 253. This European Standard covers the following fittings: bends, T-pieces, reducers, single use compensators and anchors. This European Standard applies only to insulated fitting assemblies and single use compensators for continuous operation 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.

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