NBN EN 448:2019

NBN 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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Details

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).

Additional Info

Author Bureau de Normalisation Belge (NBN)
Published by NBN
Document type Standard
ICS 23.040.40 : Metal fittings
23.040.07 : Pipelines and its parts for district heat
Replace NBN EN 448:2015
Replaced by prEN 448:2023
Document history Yes
Keyword EN 448, EN 448:2019