PREN 488-2009
PREN 488-2009 标准详情
- 标准号：PREN 488-2009
- 中文标题：
- 英文标题：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
- 标准类别：欧盟标准EN
- 发布日期：
内容简介
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 wi
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