SNV - SN EN 448
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
Organization: | SNV |
Publication Date: | 1 June 2020 |
Status: | active |
Page Count: | 33 |
ICS Code (Metal fittings): | 23.040.40 |
ICS Code (Pipelines and its parts for district heat): | 23.040.07 |
scope:
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).