BS EN 488:2015 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.


Cross References:
EN 19
EN 253:2009+A2:2015
EN 448:2015
EN 736-1
EN 10088-1:2014
EN 10204
EN 12266-1
EN 12502-4
EN 13941:2009+A1:2010
EN 14419
EN ISO 12944-2
ISO 12944-2
EN ISO 12944-5
ISO 12944-5
EN 1333:2006
EN ISO 6708:1995
ISO 6708:1995
EN ISO 9001
ISO 9001


All current amendments available at time of purchase are included with the purchase of this document.