標準號：BS EN 448-2009
中文標準名稱：區域加熱管.直埋式熱水網用預絕緣連接管系統.聚氨酯絕熱和聚乙烯外殼鋼制給水管的成套配件
英文標準名稱：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
標準類型：Q83
發布日期：2009/3/31 12:00:00
實施日期：2009/3/31 12:00:00
中國標準分類號：Q83
國際標準分類號：23.040.40
引用標準：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 253-2009;EN 287-1;EN 489-2009;EN 571-1;EN 1289;EN 1290;EN ISO 9692-1-2003;EN ISO 15607;ISO 17636
適用范圍：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.