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Norm

ÖNORM EN 488

Issue date: 2020 03 15

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

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, c...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 30 Pages
Language:
German | English | Download GER/ENG
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.
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