BS EN 488-2011 区域供暖管道.直埋式热水供应网用预先隔热包覆的管道系统.聚氨基甲酸乙酯热绝缘和聚乙烯外覆层钢管用钢阀门组件

标准号：BS EN 488-2011
中文标准名称：区域供暖管道.直埋式热水供应网用预先隔热包覆的管道系统.聚氨基甲酸乙酯热绝缘和聚乙烯外覆层钢管用钢阀门组件
英文标准名称：District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
标准类型：Q83
发布日期：2011/4/30 12:00:00
实施日期：2011/4/30 12:00:00
中国标准分类号：Q83
国际标准分类号：23.060.01;91.140.60
引用标准：EN 19;EN 253-2009;EN 448-2009;EN 736-1-1995;EN 10204-2004;EN 12266-1-2003;EN 13941-2009+A1-2010;EN 14419
适用范围：This European Standard specifies requirements and test methods for valves of prefabricated thermallyinsulated valve assemblies comprising a steel valve, rigid polyurethane foam insulation and an outer casing ofpolyethylene for use in directly buried hot water networks with pre-insulated pipe assemblies in accordancewith EN 253.This European Standard applies only to insulated valve assemblies for continuous operation with hot water atvarious temperatures in accordance with EN 253:2009, Clause 1 and the valve assemblies with a maximumoperation pressure of 25 bar. For higher pressures, additional demands apply.Guidelines for quality inspection are given in Annex A of this European Standard.NOTE For this application, the following valve types are commonly used: ball valves, gate valves, and butterfly valves.This European Standard does not include calculation rules for loads and stresses. These depend on theconfiguration of the system as it is installed. The design and installation rules are given in EN13941:2009+A1:2010.