BS EN 488:2019

This standard BS EN 488:2019 District heating pipes. Bonded single pipe systems for directly buried hot water networks. Factory made steel valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene is classified in these ICS categories:

• 23.060.01 Valves in general

This document specifies requirements and test methods for factory made thermally insulated bonded valve assemblies for hot water networks in accordance with EN 13941?1, comprising a steel valve, rigid polyurethane foam thermal insulation and a casing of polyethylene.

The valve assembly could also include the following additional elements: measuring wires, spacers and diffusion barriers.