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BS EN 15698-2:2015

BS EN 15698-2:2015

$102.76

District heating pipes. Preinsulated bonded twin pipe systems for directly buried hot water networks – Fitting and valve assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene

Published By Publication Date Number of Pages
BSI 2015 20
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This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulated twin pipe assemblies comprising steel service fittings and/or valves from DN 15 to DN 250, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated twin pipe assemblies in accordance with EN 15698‑1:2009 .

This European Standard covers the following:

  • fitting assemblies, such as T-pieces, reducers and anchors;

  • valve assemblies.

This European Standard applies only to insulated fitting assemblies for continuous operation with hot water at various temperatures in accordance with the scope EN 15698‑1:2009 .

This European Standard applies to fitting and valve assemblies with a minimum design pressure of 16 bar (overpressure) complying with EN 13941 .

Guidelines for quality inspection and testing of fitting assemblies are given in EN 448:2015, Annex A and EN 15698‑1:2009, Annex A.

Guidelines for quality inspection and testing of valve assemblies are given in EN 488:2015, Annex A and EN 15698‑1:2009, Annex A.

Procedures for PE-welding are given in EN 448:2015, Annex B.

NOTE

This European Standard does not include rules for calculation of loads and stresses.

PDF Catalog

PDF Pages PDF Title
5 European foreword
6 Introduction
7 1 Scope
2 Normative references
8 3 Terms and definitions
10 Figure 1 — Examples of fittings
4 Requirements
4.1 General
11 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 rigid foam insulation (PUR)
4.6 Fitting and valve assemblies
12 Figure 2 — Centre line deviations
4.7 Requirements for effective operation and maintenance
4.8 Surveillance system
5 Test methods
6 Marking
6.1 General
13 6.2 Steel service pipe
6.3 Casing
6.4 Fitting assembly
6.5 Steel valves and valve assembly
14 Annex A (normative) Waste treatment and recycling
15 Annex B (informative) Examples of twin pipe fitting assemblies
Figure B.1 — Horizontal bend
Figure B.2 — Vertical bend
16 Figure B.3 — House entry bend
Figure B.4 — Reducer
17 Figure B.5 — Branch
Figure B.6 — Transition assembly
18 Figure B.7 — Anchor

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BS EN 15698-2:2015
$102.76