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BS EN 17878-2:2024

BS EN 17878-2:2024

$102.76

District heating pipes. Factory made flexible pipe systems with a lower temperature profile – Requirements and test methods for bonded systems with plastic service pipes

Published By Publication Date Number of Pages
BSI 2024 22
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This document specifies requirements and test methods for flexible, factory made, buried district heating pipe systems with plastic service pipes and bonding between the layers of the pipe assemblies. It is only applicable in conjunction with EN 17878-1. This document is applicable to pipes, fittings, their joints and to joints with components made of non-plastics materials intended to be used for district heating installations. This document is applicable to a maximum operating temperature of 80 °C and maximum operating design pressure up to 1,0 MPa for a design service life of at least 50 years. This document does not apply to cover surveillance systems. NOTE For higher temperatures or for the transport of other fluids, for example potable water, additional requirements and testing are needed. Such requirements are not specified in this document.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
8 3 Terms and definitions
4 Classification
4.1 Operating temperatures and service life
9 4.2 Design pressures
5 Requirements
5.1 General requirements
10 5.2 Service pipes, fittings and their connections
5.2.1 Quality of service pipes, fittings and their connections
5.2.1.1 General
5.2.1.2 PE-RT Type II
5.2.1.3 PE-X
5.2.1.4 PB-H
11 5.2.1.5 Multilayer M-pipes
5.2.2 Fittings with steel welding end
12 5.2.3 Oxygen tightness of service pipes
5.3 Axial shear strength of pipe assemblies
5.4 Linear water tightness of pipe assemblies
5.5 Water vapour permeation of pipe assemblies
6 Test procedures
6.1 General
6.2 Thermal cycling test
13 6.3 Axial shear strength of pipe assemblies
14 6.4 Linear water tightness of pipe assemblies
15 Annex A (informative)Application of Miner’s Rule – Calculation of the calculated design life ofPE-RT Type II, PB-H, PE-X and multilayer piping systems
A.1 General
17 A.2 Considerations for multilayer piping systems
18 Annex B (informative)Guidelines for inspection and testing

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BS EN 17878-2:2024
$102.76