NEN-EN 15698-2
District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
| Organization: | NEN |
| Publication Date: | 1 October 2019 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Pipelines and its parts for district heat): | 23.040.07 |
scope:
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;
- valve construction.
This document applies to fitting and valve assemblies with a minimum design pressure of 1,6 MPa (overpressure).
Document History