CEN - PREN 488-2
District heating and district cooling pipes - Bonded pipe systems for directly buried hot and cold water networks - Factory made steel valve assembly for draining and venting, polyurethane thermal insulation and a casing of polyethylene
| Organization: | CEN |
| Publication Date: | 1 July 2023 |
| Status: | pending |
| Page Count: | 16 |
| ICS Code (Pipelines and its parts for district heat): | 23.040.07 |
scope:
This document specifies requirements for factory made thermally insulated bonded valve assemblies for draining and venting for directly buried hot and cold water networks in accordance with EN 13941-1, comprising a steel valve, steel service pipe, polyurethane (PUR) foam thermal insulation and a casing of polyethylene (PE).
The valve assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers.
Document History