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NBN EN 448:2025
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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Summary
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 pipe, in most cases a steel fitting, polyurethane (PUR) foam thermal insulation and a casing of polyethylene.
The fitting assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers.
This document specifies the characteristics of the following fitting assemblies:
- bends, T-pieces, and reducers.
This document applies to fitting assemblies with a design pressure of at least 1,6 MPa.
The fitting assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers.
This document specifies the characteristics of the following fitting assemblies:
- bends, T-pieces, and reducers.
This document applies to fitting assemblies with a design pressure of at least 1,6 MPa.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 03/20/2025 |
| Page Count | 0 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
28/11/2019
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