BS EN 15698-2:2019
$102.76
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
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 16 |
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:
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fittings: bends, T-pieces and reducers;
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valve construction.
This document applies to fitting and valve assemblies with a minimum design pressure of 1,6 MPa (overpressure).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 5 | European foreword |
| 6 | Introduction |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Requirements 4.1 General 4.2 Steel parts 4.3 Welding of steel parts 4.3.1 Welding of steel pipes and elements 4.3.2 Welding of fixing bars 4.3.3 Placing of the fixing bars 4.4 Casing 4.5 Polyurethane (PUR) rigid foam thermal insulation |
| 9 | 4.6 Fitting and valve assemblies 4.7 Requirements for effective operation and maintenance 4.8 Surveillance system 5 Test methods |
| 10 | 6 Marking 6.1 General 6.2 Steel service pipe 6.3 Casing 6.4 Fitting assembly 6.5 Steel valves and valve assembly |
| 11 | Annex A (normative) Waste treatment and recycling |
| 12 | Annex B (informative) Examples of twin pipe fitting assemblies |
| 15 | Bibliography |
