EN 15632-1:2009+A1:2014

District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general requirements and test methods

This European Standard provides classification, general requirements and test methods for flexible, pre-insulated, directly buried district heating pipe systems.
It is intended to be used in conjunction with parts 2, 3, 4, and 5.
Depending on the pipe assembly (see Table 4), this European Standard is valid for maximum operating temperatures of 95 °C to 140 °C and operating pressures of 6 bar to 25 bar.
The pipe systems are designed for a lifetime of 30 years. For pipe systems with plastic service pipes, the respective temperature profiles are defined in EN 15632-2 and EN 15632-3.
NOTE   For the transport of other liquids, for example potable water, additional requirements may be applicable.

Fernwärmerohre - Werkmäßig gedämmte flexible Rohrsysteme - Teil 1: Klassifikation, allgemeine Anforderungen und Prüfungen

Diese Europäische Norm enthält die Klassifikation, allgemeine Anforderungen und Prüfverfahren für flexible werkmäßig gedämmte direkt erdverlegte Fernwärmenetze.
Sie ist für die Anwendung in Verbindung mit den Teilen 2, 3 oder 4 vorgesehen.
In Abhängigkeit von der Rohrbaugruppe (siehe Tabelle 4) gilt diese Europäische Norm für maximale Betriebs¬temperaturen von 95 °C bis 140 °C und Betriebsdrücke von 6 bar bis 25 bar.
Die Rohrsysteme sind für eine Lebensdauer von 30 Jahren ausgelegt. Für Rohrsysteme mit Mediumrohren aus Kunststoff sind die entsprechenden Temperaturprofile in EN 15632 2 und EN 15632 3 festgelegt.
ANMERKUNG   Für den Transport von anderen Flüssigkeiten, wie z. B. Trinkwasser, können zusätzliche Anforderungen gelten.

Tuyaux de chauffage urbain - Systèmes de tuyaux flexibles préisolés - Partie 1: Classification, prescriptions générales et méthodes d'essai

La présente Norme européenne fournit la classification, les prescriptions générales et les méthodes d’essai pour les systèmes de réseaux de tuyaux de chauffage urbain flexibles préisolés enterrés directement.
Elle est prévue pour être utilisée conjointement avec les Parties 2, 3, 4 et 5.
Suivant le tuyau préisolé (voir Tableau 4), la présente Norme européenne est valable pour des températures maximales de service de 95 °C à 140 °C et des pressions de service de 6 bar à 25 bar.
Les systèmes de tuyaux sont conçus pour une durée de vie de 30 ans. Pour les systèmes de tuyaux avec des tubes de service en plastique, les profils de température respectifs sont définis dans l’EN 15632-2 et l’EN 15632-3.
NOTE   Pour le transport d’autres liquides, par exemple de l’eau potable, des prescriptions supplémentaires peuvent s’appliquer.

Cevi za daljinsko ogrevanje - Izolirani gibki cevni sistemi - 1. del: Klasifikacija, splošne zahteve in preskusne metode

Ta evropski standard določa klasifikacijo, splošne zahteve in preskusne metode za izolirane, gibke, podzemne cevne sisteme za daljinsko ogrevanje.
Standard je treba uporabljati v povezavi z deli 2, 3, 4 in 5.
Glede na cevni sestav (glej tabelo 4) ta evropski standard velja za najvišje obratovalne temperature od 95 °C do 140 °C in obratovalne tlake od 6 to 25 barov.
Življenjska doba cevnih sistemov je 30 let. Temperaturni razponi za cevne sisteme s plastičnimi oskrbovalnimi cevmi so določeni v standardih EN 15632-2 in EN 15632-3.
OPOMBA Za prevoz drugih tekočin, na primer pitne vode, morda veljajo dodatne zahteve.

General Information

• Status: Withdrawn
• Publication Date: 16-Dec-2014
• Withdrawal Date: 10-May-2022
• ICS: 23.040.01 - Pipeline components and pipelines in general
• ICS: 23.040.07 - Pipeline and its parts for district heat
• Technical Committee: CEN/TC 107 - Pre-fabricated district heating pipe systems
• Drafting Committee: CEN/TC 107/WG 10 - Flexible pipe systems for district heating
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 11-May-2022
• Ref Project: SIST EN 15632-1:2009+A1:2015 - District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general requirements and test methods

Relations

• Merged From: EN 15632-1:2009 - District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general requirements and test methods
• Effective Date: 22-Oct-2014
• Replaced By: EN 15632-1:2022 - District heating pipes - Factory made flexible pipe systems - Part 1: Classification, general requirements and test methods
• Effective Date: 18-May-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2015
Cevi za daljinsko ogrevanje - Izolirani gibki cevni sistemi - 1. del: Klasifikacija,
splošne zahteve in preskusne metode
District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification,
general requirements and test methods
Fernwärmerohre - Werkmäßig gedämmte flexible Rohrsysteme - Teil 1: Klassifikation,
allgemeine Anforderungen und Prüfungen
Tuyaux de chauffage urbain - Systèmes de tuyaux flexibles préisolés - Partie 1:
Classification, prescriptions générales et méthodes d'essai
Ta slovenski standard je istoveten z: EN 15632-1:2009+A1:2014
ICS:
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 15632-1:2009+A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2014
ICS 23.040.01 Supersedes EN 15632-1:2009
English Version
District heating pipes - Pre-insulated flexible pipe systems - Part
1: Classification, general requirements and test methods
Tuyaux de chauffage urbain - Systèmes de tuyaux flexibles Fernwärmerohre - Werkmäßig gedämmte flexible
préisolés - Partie 1: Classification, prescriptions générales Rohrsysteme - Teil 1: Klassifikation, allgemeine
et méthodes d'essai Anforderungen und Prüfungen
This European Standard was approved by CEN on 5 December 2008 and includes Amendment 1 approved by CEN on 8 November 2014.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15632-1:2009+A1:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .7
4 Classification . 12
5 Requirements . 12
5.1 Thermal insulation properties . 12
5.2 Flexibility . 12
5.3 Resistance to external actions . 13
5.4 Insulation Layer . 13
5.4.1 Compressive creep . 13
5.4.2 Water absorption at elevated temperatures . 13
5.5 Casing . 13
5.5.1 UV stability . 13
5.5.2 Thermal stability . 13
5.5.3 Stress crack resistance . 13
5.5.4 Use of rework material . 14
5.6 Surveillance systems . 14
6 Test methods . 14
6.1 General . 14
6.2 Flexibility . 14
6.3 Compressive creep . 15
6.3.1 General . 15
6.3.2 Principles of testing . 16
6.3.3 Test apparatus . 16
6.3.4 Test sample . 17
6.3.5 Test procedure . 18
6.3.6 Calculation and expression of results . 18
7 Marking . 20
7.1 General marking aspects . 20
7.2 Minimum marking information . 20
8 Manufacturer's information . 20
Annex A (normative) !Thermal conductivity of pre-insulated pipes – Test procedure" . 21
A.1 General . 21
A.2 Requirements . 21
A.2.1 Test specimen . 21
A.2.2 Operating temperature . 21
A.2.3 Types of apparatus . 21
A.3 Apparatus . 21
A.3.1 Guarded end apparatus . 21
A.3.2 Calibrated end apparatus . 22
A.3.3 Dimensions . 22
A.3.4 Heater pipe surface temperature . 22
A.4 Test specimens . 22
A.4.1 Conditioning . 22
A.4.2 Surface temperature measurement . 22
A.4.3 Location of temperature sensors . 22
A.5 Procedure . 22
A.5.1 Test length . 22
A.5.2 Diameter and dimension measurement . 22
A.5.3 Thickness of casing . 23
A.5.4 Ambient requirements . 23
A.5.5 Test pipe temperature . 24
A.5.6 Power supply . 24
A.5.7 Axial heat loss . 24
A.5.8 Test period and stability . 24
A.6 Calculations - Thermal conductivity . 24
Annex B (normative) !Calculation of the heat flow from the medium to the ambient loss of pre-

insulated buried district heating pipes" . 26
B.1 General . 26
B.2 Calculations . 26
B.2.1 Single pipe system (SPS) . 26
B.2.2 Twin pipe system (TPS) . 27
B.2.3 Radial thermal resistance of the surrounding soil . 27
B.3 Declared values of the radial thermal resistance of buried pipe systems . 27
Annex C (!informative") Determination of design values for the radial thermal resistance . 28
Annex D (informative) !Guideline for testing" . 29
D.1 General . 29
D.2 Tests . 29
D.2.1 Type test (Qualification test) . 29
D.2.2 Quality surveillance test . 30
D.2.3 Production test . 30
Bibliography . 31

Foreword
This document (EN 15632-1:2009+A1:2014) has been prepared by Technical Committee CEN/TC 107
“Prefabricated district heating pipe systems”, the secretariat of which is
...