PREN 488:2009被替代
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
出版：Comite Europeen de Normalisation
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基本信息
标准编号： PREN 488:2009
发布时间：2009/3/1 0:00:00
标准类别：Draft
出版单位：Comite Europeen de Normalisation
标准页数：31
标准简介
Describes requirements and test methods for valves of prefabricated thermally insulated valve assemblies comprising a steel valve, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with pre-insulated pipe assemblies in accordance with EN 253.
替代本标准的新标准
等同采用的国际标准
09/30197069 DC - Identical
