District heating pipes. Bonded twin pipe systems for directly buried hot water networks. Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
23.040.07 - Pipelines and its parts for district heat
23.040.10 - Iron and steel pipes
Reemplaza a: BS EN 15698-2:2015
This document specifies requirements and test methods for
fittings of factory made thermally insulated bonded twin pipe
assemblies for hot water networks in accordance with EN 13941?1, comprising two
steel service fittings and/or valves, polyurethane foam thermal
insulation and one casing of polyethylene.
The pipe assembly can also include the following additional
elements: measuring wires, spacers and diffusion barriers.
This document covers the following assemblies:
fittings: bends, T-pieces and reducers;
This document applies to fitting and valve assemblies with a
minimum design pressure of 1,6 MPa (overpressure).
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