EN 253:2009

District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene

This European Standard specifies requirements and test methods for straight lengths of prefabricated thermally insulated pipe-in-pipe assemblies for directly buried hot water networks, comprising a steel service pipe from DN 15 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene. The pipe assembly may also include the following additional elements: measuring wires, spacers and diffusion barriers.
This standard applies only to insulated pipe assemblies, for continuous operation with hot water at various temperatures up to 120 °C and occasionally with a peak temperature up to 140 °C.
The estimation of expected thermal life with continuous operation at various temperatures is outlined in Annex B.

Fernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt erdverlegte Fernwärmenetze - Verbund-Rohrsystem, bestehend aus Stahl-Mediumrohr, Polyurethan-Wärmedämmung und Außenmantel aus Polyethylen

Diese Europäische Norm legt Anforderungen und Prüfverfahren für vorgefertigte, gerade wärmegedämmte
Rohr-in-Rohr-Systeme für direkt erdverlegte Fernwärmenetze fest, die aus einem Stahl-Mediumrohr von
DN 15 bis DN 1200 mit Wärmedämmung aus Polyurethan-Hartschaumstoff und einer Ummantelung aus
Polyethylen bestehen. Das Verbund-Rohrsystem darf darüber hinaus folgende Bauteile umfassen: Messdrähte,
Abstandshalter und Diffusionsbarrieren.
Diese Norm gilt nur für wärmegedämmte Verbund-Rohrsysteme für den Dauerbetrieb mit Warmwasser bei
unterschiedlichen Betriebstemperaturen von bis zu 120 °C und gelegentlich auftretenden Spitzentemperaturen
von bis zu 140 °C.
Die Abschätzung der erwarteten thermischen Lebensdauer bei Dauerbetrieb mit unterschiedlichen Betriebstemperaturen
ist in Anhang B erläutert.

Tuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour les réseaux d'eau chaude enterrés directement - Tube de service en acier, isolation thermique en polyuréthane et tube de protection en polyéthylène

La présente Norme européenne définit les prescriptions et les méthodes d’essai applicables aux longueurs
droites de systèmes préfabriqués de tuyaux isolés thermiquement pour réseaux d’eau chaude enterrés
directement comprenant un tube de service en acier de DN 15 à DN 1200, une isolation en mousse rigide de
polyuréthane et un tube de protection en polyéthylène. Le tuyau préisolé peut également comprendre les
éléments supplémentaires suivants : les câbles de mesure, les entretoises et les barrières anti diffusion.
La présente Norme s’applique uniquement aux systèmes isolés par mousse de polyuréthane utilisés pour
l’eau chaude à différentes températures pouvant aller en service continu jusqu'à 120 °C et, parfois, à une
température de pointe pouvant atteindre 140 °C.
L’estimation de la durée de vie thermique escomptée de systèmes opérant à différentes températures en
service continu est donnée à l’Annexe B.

Cevi za daljinsko ogrevanje - Izolirani vezani cevni sistemi za podzemeljska toplovodna omrežja - Cevni sestav iz jeklene cevi, poliuretanske toplotne izolacije in zunanjega polietilenskega plašča

General Information

• Status: Withdrawn
• Publication Date: 20-Jan-2009
• Withdrawal Date: 12-Feb-2013
• ICS: 23.040.07 - Pipeline and its parts for district heat
• ICS: 23.040.10 - Iron and steel pipes
• Technical Committee: CEN/TC 107 - Pre-fabricated district heating pipe systems
• Drafting Committee: CEN/TC 107/WG 2 - Basic consideration
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 13-Feb-2013
• Completion Date: 13-Feb-2013
• Ref Project: SIST EN 253:2009 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene

Relations

• Replaces: EN 253:2003/A2:2006 - District heating Pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
• Effective Date: 08-Jun-2022
• Replaces: EN 253:2003 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
• Effective Date: 28-Jan-2009
• Replaces: EN 253:2003/A1:2005 - District heating Pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
• Effective Date: 22-Dec-2008
• Merged Into: EN 253:2009+A1:2013 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
• Effective Date: 05-Dec-2012
• Amended By: EN 253:2009+A1:2013/FprA2 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
• Effective Date: 08-Oct-2012

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RG]HPHOMVNDFernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt erdverlegte Fernwärmenetze - Verbund-Rohrsystem bestehend aus Stahl-Mediumrohr, Polyurethan-Wärmedämmung und Außenmantel aus PolyethylenTuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour les réseaux d'eau chaude enterrés directement - Tube de service en acier, isolation thermique en polyuréthane et tube de protection en polyéthylèneDistrict heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene91.140.65Oprema za ogrevanje vodeWater heating equipment23.040.10Železne in jeklene ceviIron and steel pipesICS:Ta slovenski standard je istoveten z:EN 253:2009SIST EN 253:2009en,fr01-april-2009SIST EN 253:2009SLOVENSKI
STANDARDSIST EN 253:2004/A2:2007SIST EN 253:2004/A1:2006SIST EN 253:20041DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 253January 2009ICS 23.040.10Supersedes EN 253:2003
English VersionDistrict heating pipes - Preinsulated bonded pipe systems fordirectly buried hot water networks - Pipe assembly of steelservice pipe, polyurethane thermal insulation and outer casing ofpolyethyleneTuyaux de chauffage urbain - Systèmes bloqués de tuyauxpréisolés pour les réseaux d'eau chaude enterrésdirectement - Tube de service en acier, isolation thermiqueen polyuréthane et tube de protection en polyéthylèneFernwärmerohre - Werkmäßig gedämmteVerbundmantelrohrsysteme für direkt erdverlegteFernwärmenetze - Verbund-Rohrsystem bestehend ausStahl-Mediumrohr, Polyurethan-Wärmedämmung undAußenmantel aus PolyethylenThis European Standard was approved by CEN on 5 December 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 253:2009: ESIST EN 253:2009

Relation between actual continuous operating conditions and accelerated ageing test conditions . 31Annex B (informative)
Calculation of the minimum expected thermal life with operation at various temperatures with respect to PUR foam performance . 33Annex C (normative)
Calculated continuous operating temperature (CCOT) . 34C.1General. 34C.2Symbols . 34C.3Ageing and shear strength determinations . 34C.4Calculations . 35C.4.1Determination of the thermal life at different ageing temperatures . 35C.4.2Adoption to the Arrhenius relation . 35C.4.3Calculated continuous operating temperature, CCOT . 35Annex D (informative)
Guidelines for inspection and testing . 37D.1General. 37D.2Manufacturer's type test . 37D.3Manufacturer’s quality control . 37D.4External inspection . 37D.5Manufacturer's responsibility . 37Annex E (informative)
Radial creep behaviour of the polyurethane foam (PUR) . 40Annex F (normative)
Thermal conductivity of pre-insulated pipe
...