EN 15632-2:2022

SLOVENSKI STANDARD
01-julij-2022
Nadomešča:
SIST EN 15632-2:2010+A1:2015
Cevi za daljinsko ogrevanje - Tovarniško izdelani gibki cevni sistemi - 2. del:
Vezani cevni sistemi iz polimernih materialov - Zahteve in preskusne metode
District heating pipes - Factory made flexible pipe systems - Part 2: Bonded system with
plastic service pipes; requirements and test methods
Fernwärmerohre - Werkmäßig gedämmte flexible Rohrsysteme - Teil 2:
Verbundrohrsysteme mit Mediumrohren aus Kunststoff; Anforderungen und Prüfungen
Tuyaux de chauffage urbain - Système de tuyaux flexibles pré-isolés - Partie 2 : Système
bloqué avec tubes de service en plastique ; exigences et méthodes d'essai
Ta slovenski standard je istoveten z: EN 15632-2:2022
ICS:
23.040.07 Cevovodi za daljinsko Pipeline and its parts for
ogrevanje in njihovi deli district heat
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15632-2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 23.040.07 Supersedes EN 15632-2:2010+A1:2014
English Version
District heating pipes - Factory made flexible pipe systems
- Part 2: Bonded system with plastic service pipes;
requirements and test methods
Tuyaux de chauffage urbain - Systèmes de tuyaux Fernwärmerohre - Werkmäßig gedämmte flexible
flexibles manufacturés - Partie 2 : Système bloqué avec Rohrsysteme - Teil 2: Verbundrohrsysteme mit
tubes de service en plastique ; exigences et méthodes Mediumrohren aus Kunststoff; Anforderungen und
d'essai Prüfungen
This European Standard was approved by CEN on 27 March 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15632-2:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Classification . 7
4.1 Operating temperatures and service life. 7
4.2 Design pressures . 7
5 Requirements . 8
5.1 General requirements . 8
5.2 Service pipes, fittings and their connections . 8
5.2.1 Quality of service pipes, fittings and their connections . 8
5.2.2 Oxygen tightness of service pipes . 11
5.3 Axial shear strength of pipe assemblies . 11
5.4 Linear water tightness of pipe assemblies . 11
5.5 Water vapour permeation of pipe assemblies . 11
6 Test procedures . 11
6.1 General . 11
6.2 Thermal cycling test . 12
6.3 Axial shear strength of pipe assemblies . 12
6.4 Linear water tightness of pipe assemblies . 14
Annex A (informative) Application of Miner's Rule - Calculation of the calculated design life
of PB-H, PE-X and Multilayer piping systems . 15
A.1 General . 15
A.2 Considerations for multilayer piping systems . 17
Annex B (informative) Guideline for inspection and testing . 18
Bibliography . 20

European foreword
This document (EN 15632-2:2022) has been prepared by Technical Committee CEN/TC 107
“Prefabricated district heating and district cooling pipe systems”, the secretariat of which is held by DS.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2022, and conflicting national standards
shall be withdrawn at the latest by November 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15632-2:2010+A1:2014.
This document is one of a series of standards which form several parts of EN 15632, District heating
pipes — Factory made flexible pipe systems:
— Part 1: Classification, general requirements and test methods;
— Part 2: Bonded system with plastic service pipes; requirements and test methods;
— Part 3: Non bonded system with plastic service pipes; requirements and test methods;
— Part 4: Bonded system with metal service pipes; requirements and test methods.
In comparison with EN 15632-2:2010+A1:2014, the following changes have been made:
a) revised temperature profile in Clause 4 with explicitly stated (unchanged) safety factors;
b) introduction of an alternative option of thermal stability testing at 115 °C in 5.2;
c) improved specification of a service pipe according to EN ISO 21003 in 5.2;
d) completely revised informative Annex A “Application of Miner’s rule”;
e) completely revised “guideline for testing” in the informative Annex B.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
District heating technology has developed rapidly since its origin and especially in recent times. Today,
there are different generations of district heating networks. The technologies of these generations are
driven by the different heat sources and operating temperatures used.
CEN/TC 107 provides a set of European standard series for rigid and flexible piping systems in district
heating to suit all generations and requirements of district heating networks in the market.
The standard documents ensure quality for pre-fabricated piping systems in district heating.
This standard series covers flexible, pre-fabricated piping systems for operation conditions as described
in the scope of part 1.
1 Scope
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 part 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 95 °C and maximum operating
design pressure up to 1,0 MPa for a design service life of at least 30 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 is needed. Such requirements are not specified in this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 485-2, Aluminium and aluminium alloys - Sheet, strip and plate - Part 2: Mechanical properties
EN 573-3, Aluminium and aluminium alloys - Chemical composition and form of wrought products -
Part 3: Chemical composition and form of products
EN 10025-2, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy
structural steels
EN 10025-3, Hot rolled products of structural steels - Part 3: Technical delivery conditions for
normalized/normalized rolled weldable fine grain structural steels
EN 10025-4, Hot rolled products of structural steels - Part 4: Technical delivery conditions for
thermomechanical rolled weldable fine grain structural steels
EN 10216-1, Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy
steel tubes with specified room temperature properties
EN 10216-2, Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy
and alloy steel tubes with specified elevated temperature properties
EN 10216-3, Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 3: Alloy fine
grain steel tubes
EN 10217-1, Welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Electric
welded and submerged arc welded non-alloy steel tubes with specified room temperature properties
EN 10217-2, Welded steel tubes for pressure purposes - Technical delivery conditions - Part 2: Electric
welded non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10217-3, Welded steel tubes for pressure purposes - Technical delivery conditions - Part 3: Electric
welded and submerged arc welded alloy fine grain steel tubes with specified room, elevated and low
temperature properties
EN 15632-1, District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general
requirements and test methods
EN ISO 15875-1, Plastics piping systems for hot and cold water installations - Crosslinked polyethylene
(PE-X) - Part 1: General (ISO 15875-1)
EN ISO 15875-2, Plastics piping systems for hot and cold water installations - Crosslinked polyethylene
(PE-X) - Part 2: Pipes (ISO 15875-2)
EN ISO 15875-3, Plastics piping systems for hot and cold water installations - Crosslinked polyethylene
(PE-X) - Part 3: Fittings (ISO 15875-3)
EN ISO 15875-5, Plastics piping systems for hot and cold water installations - Crosslinked polyethylene
(PE-X) - Part 5: Fitness for purpose of the system (ISO 15875-5)
EN ISO 15876-1, Plastics piping systems for hot and cold water installations - Polybutene (PB) - Part 1:
General (ISO 15876-1)
EN ISO 15876-2, Plastics piping systems for hot an
...