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CEN

EN 448:2015

(Main)

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

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

This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulated pipe-in-pipe assemblies comprising a steel service fitting from DN 20 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated pipe assemblies in accordance with EN 253.
This European Standard covers the following fittings: bend, tee, reducer, single use compensator and anchor.
This European Standard applies only to factory made prefabricated fitting assemblies and single use compensators for continuous operation with hot water at various temperatures in accordance with EN 253.
This European Standard applies to fitting assemblies with a minimum design pressure of 16 bar (overpressure) complying with EN 13941.
This European Standard does not include calculation rules for loads and stresses. The design and installation rules, for the system, are given in EN 13941.

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

Diese Europäische Norm legt Anforderungen an und Prüfverfahren für Formstücke von werkmäßig wärme-gedämmten Verbundmantelrohren für erdverlegte Fernwärmenetze fest, die aus einem Stahl Mediumrohr von DN 20 bis DN 1 200 mit Wärmedämmung aus Polyurethan-Hartschaumstoff und einer Ummantelung aus Polyethylen für direkt erdverlegte Fernwärmenetze aus werkmäßig gedämmten Verbund Rohrsystemen nach EN 253 bestehen.
Diese Europäische Norm behandelt folgende Formstücke: Bogenstück, T-Stück, Reduzierstück, Einmalkompensator und Festpunktelement.
Diese Europäische Norm gilt ausschließlich für werkmäßig gedämmte Verbundformstücke und Einmalkompensatoren für den Dauerbetrieb mit Warmwasser bei unterschiedlichen Betriebstemperaturen nach EN 253.
Diese Europäische Norm gilt für Verbundformstücke, die für einen Druck von mindestens 16 bar (Überdruck) nach EN 13941 ausgelegt sind.
Diese Europäische Norm enthält keine Regeln für die Berechnung von Last- und Spannungswerten. Die Regeln für Aus¬legung und Installation des Systems sind EN 13941 zu entnehmen.

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

La présente Norme européenne définit les exigences et les méthodes d’essai applicables aux raccords des systèmes préfabriqués de tubes isolés thermiquement pour les réseaux d'eau chaude enterrés directement, conformes à l’EN 253, comprenant des raccords de service en acier de DN 20 à DN 1200, une isolation en mousse rigide de polyuréthane et un tube de protection en polyéthylène.
La présente Norme européenne couvre les raccords suivants : coude, té, réducteur, compensateur à usage unique et pièce d’ancrage.
La présente Norme européenne s’applique uniquement aux assemblages de raccords préfabriqués en usine et aux compensateurs à usage unique utilisés en service continu avec de l’eau chaude à diverses températures conformément à l’EN 253.
La présente Norme européenne s’applique aux raccords de pression minimale de calcul de 16 bar (surpression) conformément à l’EN 13941.
La présente Norme européenne ne comprend pas de règles de calcul pour les charges et les contraintes. Les règles de conception et d'installation du système sont données dans l'EN 13941.

Cevi za daljinsko ogrevanje - Izolirani vezani cevni sistemi za podzemeljska toplovodna omrežja - Sestav fitingov jeklenih cevi, poliuretanske toplotne izolacije in zunanjega polietilenskega plašča

Ta evropski standard določa zahteve in preskusne metode za fitinge predizdelanih, toplotno izoliranih cevnih sestavov, sestavljenih iz jeklenih fitingov od DN 20 do DN 1200, trde poliuretanske izolacijske pene in zunanjega polietilenskega plašča za uporabo v podzemeljskih toplovodnih omrežjih z izoliranimi vezanimi sistemi v skladu s standardom EN 253. Ta evropski standard zajema naslednje fitinge: kolena, priključke T, reducirne priključke, kompenzatorje za enkratno uporabo in sidra. Ta evropski standard se uporablja samo za izolirane sestave fitingov in kompenzatorje za enkratno uporabo za neprekinjeno delovanje z vročo vodo pri različnih temperaturah v skladu s točko 1 standarda EN 253:2009. Ta evropski standard se uporablja za sestave fitingov z minimalnim predvidenim tlakom 16 barov (nadtlak) v skladu s standardom EN 13941. Smernice za preverjanje kakovosti so navedene v dodatku A tega evropskega standarda. Postopki za varjenje polietilena so navedeni v dodatku B tega evropskega standarda. OPOMBA: Ta evropski standard ne zajema pravil za izračun obremenitev in napetosti.

General Information

Status
Withdrawn
Publication Date
03-Nov-2015
Withdrawal Date
15-Oct-2019
ICS
23.040.07 - Pipeline and its parts for district heat
23.040.40 - Metal fittings
Technical Committee
CEN/TC 107 - Pre-fabricated district heating pipe systems
Drafting Committee
CEN/TC 107/WG 5 - Fittings and valves
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
16-Oct-2019
Ref Project
SIST EN 448:2016 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene

Relations

Replaces
EN 448:2009 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
Effective Date
05-Dec-2012
Replaced By
EN 448:2019 - District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene
Effective Date
14-Jun-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RG]HPHOMVNDFernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt erdverlegte Fernwärmenetze - Verbundformstücke, bestehend aus Stahl-Mediumrohr, Polyurethan-Wärmedämmung und Außenmantel aus PolyethylenTuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour les réseaux enterrés d'eau chaude - Raccords préisolés, tubes de service en acier, isolation thermique en polyuréthanne et tube de protection en polyéthylèneDistrict heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene91.140.65Oprema za ogrevanje vodeWater heating equipment23.040.40Kovinski fitingiMetal fittings23.040.07Cevovodi za daljinsko ogrevanje in njihovi deliPipeline and its parts for district heatICS:Ta slovenski standard je istoveten z:EN 448:2015SIST EN 448:2016en,fr,de01-januar-2016SIST EN 448:2016SLOVENSKI
STANDARDSIST EN 448:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 448
November 2015 ICS 23.040.40 Supersedes EN 448:2009English Version
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
Tuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour des réseaux d'eau chaude enterrés directement - Raccords préisolés pour tubes de service en acier, isolation thermique en polyuréthane et tube de protection en polyéthylène
Fernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt erdverlegte Fernwärmenetze - Verbundformstücke, bestehend aus Stahl-Mediumrohr, Polyurethan-Wärmedämmung und Außenmantel aus Polyethylen This European Standard was approved by CEN on 5 September 2015.
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 © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 448:2015 ESIST EN 448:2016

Guidelines for inspection and testing . 23 A.1 General . 23 A.2 Manufacturer’s type test . 23 A.3 Manufacturer’s quality control . 23 A.4 External inspection . 23 A.5 Extent of inspection . 23 A.6 Manufacturer’s responsibility . 23 Annex B (informative)
Procedures for polyethylene welding . 26 B.1 General . 26 B.2 Recommendations for site, machine and equipment . 26 B.3 Items . 26 B.4 Butt fusion welding . 26 B.5 Extrusion welding . 28 Bibliography . 30
...

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