District heating pipes - Factory made flexible pipe systems - Part 4: Bonded system with metal service pipes; requirements and test methods

This document specifies requirements and test methods for flexible, factory made, buried district heating pipe systems with metallic service pipes and bonding between the layers of the pipe assemblies and thermal insulation materials of polyurethane or polyisocyanurate foam, the casing being made of polyethylene.
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 continuous operating temperature up to 120 °C and a maximum operating temperature of 140 °C for maximum 300 h/a, and a design pressure up to 2,5 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.

Fernwärmerohre - Werkmäßig gedämmte flexible Rohrsysteme - Teil 4: Verbundmediumrohre aus Metall; Anforderungen und Prüfungen

Dieses Dokument legt Anforderungen und Prüfverfahren für flexible, werkmäßig hergestellte, erdverlegte Fernwärmerohrsysteme mit Mediumrohren aus Metall, Verbund zwischen den Schichten der Rohrbaugruppen sowie Wärmedämmstoffen aus Polyurethan oder Polyisocyanurat-Schaumstoff, wobei der Außenmantel aus Polyethylen hergestellt ist, fest.
Es ist nur in Verbindung mit Teil 1 anwendbar.
Dieses Dokument gilt für Rohre, Formstücke, ihre Verbindungen untereinander sowie mit Rohrleitungsteilen, deren Werkstoffe nicht aus Kunststoff bestehen und die für Fernwärmeinstallationen vorgesehen sind.
Dieses Dokument ist anwendbar für eine Dauerbetriebstemperatur von 120 °C und einer maximalen Betriebs¬temperatur von 140 °C für maximal 300 h/a sowie für einen zulässigen Betriebsdruck bis einschließlich 2,5 MPa für eine Auslegungsnutzungsdauer von mindestens 30 Jahren.
Dieses Dokument gilt nicht für Überwachungssysteme.
ANMERKUNG   Für höhere Temperaturen oder für den Transport anderer Flüssigkeiten, z. B. Trinkwasser, sind zusätz¬liche Anforderungen und Prüfungen erforderlich. Derartige Anforderungen sind in diesem Dokument nicht festgelegt.

Tuyaux de chauffage urbain - Systèmes de tuyaux flexibles manufacturés - Partie 4 : Système bloqué avec tubes de service en métal ; exigences et méthodes d'essai

Le présent document spécifie les exigences et les méthodes d’essai relatives aux systèmes de tuyaux de chauffage urbain flexibles, manufacturés, enterrés, avec des tubes de service en métal, une adhérence entre les couches des assemblages de tubes et des matériaux d’isolation thermique en mousse de polyuréthane ou de polyisocyanate ; les tubes de protection doivent être en polyéthylène.
Il n'est utilisable que conjointement avec la partie 1.
Le présent document est applicable aux tuyaux, raccords, leurs joints, et aux joints avec des composants en matériaux non plastiques destinés à être utilisés pour les installations de chauffage urbain.
Le présent document est applicable à une température de service continu jusqu’à 120 °C et, à une température de service maximale de 140 °C pour une durée de 300 h/a, et une pression de conception maximale de 2,5 MPa pour une durée de vie prévue d’au moins 30 ans.
Le présent document ne couvre pas les systèmes de surveillance.
NOTE   Pour les températures plus élevées ou pour le transport d’autres fluides, par exemple, de l’eau potable, des exigences et des essais supplémentaires sont nécessaires. Ces exigences ne sont pas spécifiées dans le présent document.

Cevi za daljinsko ogrevanje - Tovarniško izdelani gibki cevni sistemi - 4. del: Vezane kovinske cevi - Zahteve in preskusne metode

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SLOVENSKI STANDARD
SIST EN 15632-4:2022
01-julij-2022
Nadomešča:
SIST EN 15632-4:2009
Cevi za daljinsko ogrevanje - Tovarniško izdelani gibki cevni sistemi - 4. del:
Vezane kovinske cevi - Zahteve in preskusne metode

District heating pipes - Factory made flexible pipe systems - Part 4: Bonded system with

metal service pipes; requirements and test methods
Fernwärmerohre - Werkmäßig gedämmte flexible Rohrsysteme - Teil 4:
Verbundmediumrohre aus Metall; Anforderungen und Prüfungen

Tuyaux de chauffage urbain - Systèmes de tuyaux flexibles manufacturés - Partie 4 :

Système bloqué avec tubes de service en métal ; exigences et méthodes d'essai
Ta slovenski standard je istoveten z: EN 15632-4:2022
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
SIST EN 15632-4:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 15632-4:2022
---------------------- Page: 2 ----------------------
SIST EN 15632-4:2022
EN 15632-4
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 23.040.07 Supersedes EN 15632-4:2009
English Version
District heating pipes - Factory made flexible pipe systems
- Part 4: Bonded system with metal service pipes;
requirements and test methods

Tuyaux de chauffage urbain - Systèmes de tuyaux Fernwärmerohre - Werkmäßig gedämmte flexible

flexibles manufacturés - Partie 4 : Système bloqué avec Rohrsysteme - Teil 4: Verbundmediumrohre aus

tubes de service en métal ; exigences et méthodes Metall; Anforderungen und Prüfungen

d'essai
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 15632-4:2022 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 15632-4:2022
EN 15632-4:2022 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 6

4 Operating conditions ..................................................................................................................................... 6

5 Requirements ................................................................................................................................................... 6

5.1 General requirements ................................................................................................................................... 6

5.2 Service pipes, fittings and their connections ........................................................................................ 6

5.3 Axial shear strength of the pipe assemblies .......................................................................................... 8

5.4 Linear water tightness of pipe assemblies ............................................................................................. 8

5.5 Fittings ................................................................................................................................................................ 8

5.6 Surveillance systems ...................................................................................................................................... 8

6 Test procedures ............................................................................................................................................... 8

6.1 General ................................................................................................................................................................ 8

6.2 Axial shear strength of pipe assemblies ................................................................................................. 8

6.2.1 General ................................................................................................................................................................ 8

6.2.2 Test procedure ................................................................................................................................................. 9

6.3 Cycle test .......................................................................................................................................................... 10

6.4 Linear water tightness of pipe assemblies .......................................................................................... 11

Annex A (informative) Guideline for testing ................................................................................................... 12

Bibliography ................................................................................................................................................................. 14

---------------------- Page: 4 ----------------------
SIST EN 15632-4:2022
EN 15632-4:2022 (E)
European foreword

This document (EN 15632-4:2022) 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 15632-4:2009.

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 15632-4:2009, the following changes have been made:
a) change in the temperature in the scope;
b) changes in the steel qualities, including the referenced standards;
c) completely revised “guideline for testing” in the informative Annex A.

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.
---------------------- Page: 5 ----------------------
SIST EN 15632-4:2022
EN 15632-4:2022 (E)
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.
---------------------- Page: 6 ----------------------
SIST EN 15632-4:2022
EN 15632-4:2022 (E)
1 Scope

This document specifies requirements and test methods for flexible, factory made, buried district heating

pipe systems with metallic service pipes and bonding between the layers of the pipe assemblies and

thermal insulation materials of polyurethane or polyisocyanurate foam, the casing being made of

polyethylene.
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 continuous operating temperature up to 120 °C and a maximum

operating temperature of 140 °C for maximum 300 h/a, and a design pressure up to 2,5 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 1057, Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating

applications

EN 10088-2, Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion

resisting steels for general purposes
EN 10204, Metallic products - Types of inspection documents

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 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 10305-1, Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold

drawn tubes

EN 10305-2, Steel tubes for precision applications - Technical delivery conditions - Part 2: Welded cold

drawn tubes

EN 10305-3, Steel tubes for precision applications - Technical delivery conditions - Part 3: Welded cold sized

tubes
EN 12449, Copper and copper alloys - Seamless, round tubes for general purposes

EN 14419, District heating pipes - Bonded single and twin pipe systems for buried hot water netwo

...

SLOVENSKI STANDARD
oSIST prEN 15632-4:2021
01-januar-2021
Cevi za daljinsko ogrevanje - Tovarniško izdelani gibki cevni sistemi - 4. del:
Vezane kovinske cevi - Zahteve in preskusne metode

District heating pipes - Factory made flexible pipe systems - Part 4: Bonded system with

metal service pipes; requirements and test methods
Fernwärmerohre - Werkmäßig gedämmte flexible Rohrsysteme - Teil 4:
Verbundmediumrohre aus Metall; Anforderungen und Prüfungen
Tuyaux de chauffage urbain - Systèmes de tuyaux flexibles préisolés - Partie 4 :
Système bloqué avec tubes de service en métal ; exigences et méthodes d'essai
Ta slovenski standard je istoveten z: prEN 15632-4
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
oSIST prEN 15632-4:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 15632-4:2021
---------------------- Page: 2 ----------------------
oSIST prEN 15632-4:2021
DRAFT
EUROPEAN STANDARD
prEN 15632-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
ICS 23.040.07 Will supersede EN 15632-4:2009
English Version
District heating pipes - Factory made flexible pipe systems
- Part 4: Bonded system with metal service pipes;
requirements and test methods

Tuyaux de chauffage urbain - Systèmes de tuyaux Fernwärmerohre - Werkmäßig gedämmte flexible

flexibles préisolés - Partie 4 : Système bloqué avec Rohrsysteme - Teil 4: Verbundmediumrohre aus

tubes de service en métal ; exigences et méthodes Metall; Anforderungen und Prüfungen

d'essai

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 107.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15632-4:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 15632-4:2021
prEN 15632-4:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 6

4 Operating conditions ..................................................................................................................................... 6

5 Requirements ................................................................................................................................................... 6

5.1 General requirements ................................................................................................................................... 6

5.2 Service pipes, fittings and their connections ........................................................................................ 7

5.3 Axial shear stress of the pipe assemblies ............................................................................................... 8

5.4 Linear water tightness of pipe assemblies ............................................................................................. 8

5.5 Fittings ................................................................................................................................................................ 8

5.6 Surveillance systems ...................................................................................................................................... 8

6 Test procedures ............................................................................................................................................... 8

6.1 General ................................................................................................................................................................ 8

6.2 Axial shear strength of pipe assemblies ................................................................................................. 8

6.2.1 General ................................................................................................................................................................ 8

6.2.2 Test procedure ................................................................................................................................................. 9

6.3 Cycle test .......................................................................................................................................................... 10

6.4 Linear water tightness of pipe assemblies .......................................................................................... 10

Annex A (informative) Guideline for testing ..................................................................................................... 12

Bibliography ................................................................................................................................................................. 14

---------------------- Page: 4 ----------------------
oSIST prEN 15632-4:2021
prEN 15632-4:2020 (E)
European foreword

This document (prEN 15632-4:2020) has been prepared by Technical Committee CEN/TC 107

“Prefabricated district heating and district cooling pipe system”, the secretariat of which is held by DS.

This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15632-4:2009.

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 to EN 15632-4:2009 the following changes have been made:
a) change the temperature in the scope;
b) changes in the mild steel qualities incl. the referring standards;
c) completely revised “guideline for testing” in the informative Annex A.
---------------------- Page: 5 ----------------------
oSIST prEN 15632-4:2021
prEN 15632-4:2020 (E)
Introduction

Factory made flexible bonded pipe systems with metallic service pipes are used in district and local

heating networks.

This part of the series of standards for the various types of flexible pipe systems shall be used in

connection with EN 15632-1 which specifies the basic design criteria for flexible district heating pipes.

---------------------- Page: 6 ----------------------
oSIST prEN 15632-4:2021
prEN 15632-4:2020 (E)
1 Scope

This document provides requirements and test methods for flexible, factory made, buried district

heating pipe systems with metallic service pipes and bonding between the layers of the pipe assemblies

and thermal insulation materials of polyurethane or polyisocyanurate foam, the casing being made of

polyethylene.
It shall be used in conjunction with part 1.

This document is valid for maximum media temperatures up to 120 °C and, occasionally peak

temperatures up to 140 °C for maximum 300 h/a, and a design pressure up to 2,5 MPa for a design

lifetime of at least 30 years.
This document covers surveillance systems.

In conjunction with the other parts of EN 15632, 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.

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 1057, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and

heating applications

EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion

resisting steels for general purposes

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 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 10305-1, Steel tubes for precision applications — Technical delivery conditions — Part 1: Seamless

cold drawn tubes

EN 10305-2, Steel tubes for precision applications — Technical delivery conditions — Part 2: Welded cold

drawn tubes

EN 10305-3, Steel tubes for precision applications — Technical delivery conditions — Part 3: Welded cold

sized tubes
EN 12449, Copper and copper alloys — Seamless, round tubes for general purposes

EN 14419, District heating pipes — Bonded single and twin pipe systems for buried hot water networks —

Surveillance systems

EN 15632-1, District heating pipes — Factory made flexible pipe systems — Part 1: Classification, general

requirements and test methods
---------------------- Page: 7 ----------------------
oSIST prEN 15632-4:2021
prEN 15632-4:2020 (E)
3 Terms and definitions
For the purposes of this document, the
...

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