EN 488-1:2025

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Part 1: Factory made steel shut-off valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene EN 488-1:2025

Publication date:   Jul 6, 2023

General information

60.55 Ratification completed (DOR)   Jan 27, 2025

CEN

CEN/TC 107 Prefabricated district heating and district cooling pipe system

European Norm

23.040.07   Pipelines and its parts for district heat | 23.060.01   Valves in general

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Scope

This document specifies requirements and test methods for factory made thermally insulated bonded steel shut-off valve assemblies for hot water networks in accordance with EN 13941-1, comprising a steel valve, valve extension pipes, polyurethane (PUR) foam thermal insulation and a casing of polyethylene.
This document applies to steel valve assemblies with an internal pressure of maximum 2,5 MPa.
The principles of this document can be applied to thermal insulated bonded steel valve assemblies with internal pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure.
The steel shut-off valve assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers.

Life cycle

PREVIOUSLY

PUBLISHED
EN 488:2019

NOW

IN_DEVELOPMENT
EN 488-1:2025
60.55 Ratification completed (DOR)
Jan 27, 2025