SS-EN-488 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

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This European Standard specifies 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. This European Standard applies only to factory made prefabricated insulated valve assemblies for continuous operation with hot water at various temperatures in accordance with EN 253:2009+A2:2015, Clause 1 and the valve assemblies with a maximum operation pressure of 25 bar. For higher pressures, additional demands apply. 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 the configuration of the system as it is installed. The design and installation rules are given in EN 13941.

To find similar documents by classification:

23.040.01 (Pipeline components and pipelines in general)

23.040.99 (Other pipeline components)

23.060 (Valves)

23.060.01 (Valves in general)

27.010 (Energy and heat transfer engineering in general)

27.220 (Heat recovery. Thermal insulation This group includes standards for general use Thermal insulation of buildings, see 91.120.10)

91.140.10 (Central heating systems Including burners and boilers for central heating systems Heating appliances, see 97.100)

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Designation Name

SS-EN 488:2015

Revision Level




Publication Date

Nov. 9, 2015



Page Count


International Equivalent

EN 488:2015(IDT)