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EVS-EN 448:2019

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene

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Kehtetu alates 01.04.2025
Alusdokumendid
EN 448:2019
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
01.04.2025
Põhitekst
01.11.2019
Põhitekst
03.12.2015
Põhitekst
EVS-EN 448:2015
This document specifies requirements and test methods for factory made thermally insulated bonded fitting assemblies for hot water networks in accordance with EN 13941-1, comprising a steel service fitting, rigid polyurethane foam thermal insulation and a casing of polyethylene.
The fitting assembly could also include the following additional elements: measuring wires, spacers and diffusion barriers.
This document covers the following fitting assemblies: bend, tee, reducer, single use compensator and anchor.
This document applies to fitting assemblies with a minimum design pressure of 1,6 MPa (overpressure).

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