BS EN 15698-1:2019
$102.76
District heating pipes. Bonded twin pipe systems for directly buried hot water networks – Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 18 |
This document specifies requirements and test methods for straight lengths of factory made thermally insulated bonded twin pipe assemblies for directly buried hot water networks in accordance with EN 13941 1, comprising two steel service pipes, rigid 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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 4.1 General 4.2 Steel service pipe |
| 8 | 4.3 Casing 4.4 Polyurethane (PUR) rigid foam thermal insulation 4.5 Pipe assembly 4.5.1 End alignment of flow and return steel service pipes 4.5.2 Distance between flow and return steel service pipes |
| 9 | 4.5.3 Twisting of steel service pipes |
| 10 | 4.5.4 Centre line deviation |
| 11 | 4.5.5 Pipe ends 4.5.6 Axial shear strength 4.5.7 Expected thermal life and long term temperature resistance 4.5.8 Thermal conductivity in unaged condition 4.5.9 Impact resistance 4.5.10 Surface conditions at delivery 4.5.11 Measuring wires for surveillance systems 5 Test methods 5.1 General 5.2 Test specimens |
| 12 | 5.3 Casing 5.4 Polyurethane (PUR) rigid foam thermal insulation 5.5 Pipe assembly 5.5.1 Axial shear strength 5.5.1.1 Test specimen 5.5.1.2 Test procedure |
| 13 | 5.5.1.3 Calculation of shear strength 5.5.1.4 Axial shear strength before ageing |
| 14 | 5.5.1.5 Axial shear strength after ageing 5.5.2 Expected thermal life and long term temperature resistance 5.5.3 Thermal conductivity in unaged condition 5.5.4 Thermal transmittance 5.5.5 Impact resistance 6 Marking |
| 15 | Annex A (informative)Guidelines for inspection and testing |
| 16 | Annex B (informative)Waste treatment and recycling |
