EN 488:2011+A1:2014
(Main)District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
This European Standard specifies requirements and test methods for valves of prefabricated thermally insulated valve assemblies comprising a steel valve, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with pre-insulated pipe assemblies in accordance with EN 253.
This European Standard applies only to insulated valve assemblies for continuous operation with hot water at various temperatures in accordance with EN 253:2009, Clause 1 and the valve assemblies with a maximum operation pressure of 25 bar. For higher pressures, additional demands apply.
Guidelines for quality inspection are given in Annex A of this European Standard.
NOTE For this application, the following valve types are commonly used: ball valves, gate valves, and butterfly valves.
This European Standard does not include calculation rules for loads and stresses. These depend on the configuration of the system as it is installed. The design and installation rules are given in EN 13941:2009+A1:2010.
Fernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt erdverlegte Fernwärmenetze - Vorgedämmte Absperrarmaturen für Stahlmediumrohre mit Polyurethan-Wärmedämmung und Außenmantel aus Polyethylen
Diese Europäische Norm legt Anforderungen an und Prüfverfahren für vorgefertigte, wärmegedämmte Absperr¬armaturen fest, die eine Stahlarmatur, eine Wärmedämmung aus Polyurethan-Hartschaumstoff und eine Ummantelung aus Polyethylen umfassen und in direkt erdverlegten Fernwärmenetzen mit werkmäßig gedämmten Verbund-Rohrsystemen nach EN 253 verwendet werden.
Diese Norm gilt nur für wärmegedämmte Absperrarmaturen für einen Dauerbetrieb mit Warmwasser bei verschiedenen Betriebstemperaturen in Übereinstimmung mit EN 253:2009, Abschnitt 1, sowie Absperr-armaturen mit einem maximalen Betriebsdruck von 25 bar. Für höhere Drücke gelten zusätzliche Anfor-derungen.
Leitlinien für die Qualitätsprüfung sind in Anhang A dieser Norm enthalten.
ANMERKUNG Für diese Anwendung werden gewöhnlich folgende Grundbauarten von Armaturen eingesetzt: Kugelventile, Klappen und Schieber.
Diese Norm enthält keine Regeln zur Berechnung von Belastungen und Spannungen. Diese sind von der Konfiguration des Systems bei dessen Installation abhängig. Regeln für Auslegung und Installation sind in EN 13941:2009+A1:2010 angegeben.
Tuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour les réseaux d'eau chaude enterrés directement - Robinets préisolés pour tubes de service en acier, isolation thermique en polyuréthane et tube de protection en polyéthylène
La présente Norme européenne spécifie les caractéristiques et les méthodes d’essai des robinets préisolés préfabriqués isolés thermiquement constitués d’un appareil de robinetterie en acier, d’un isolant en mousse rigide de polyuréthanne et d’une protection en polyéthylène pour une utilisation sur des réseaux d’eau chaude enterrés directement comportant des assemblages de tuyaux préisolés conformes à l’EN 253.
La présente Norme européenne s'applique uniquement aux assemblages d'appareils de robinetterie isolés destinés à un fonctionnement en continu avec de l'eau chaude aux diverses températures indiquées dans l'EN 253:2009, Article 1, mais également aux assemblages de robinetterie avec une pression de service maximale de 25 bar. Pour des pressions supérieures, des exigences supplémentaires s'appliquent.
Les lignes directrices relatives au contrôle qualité sont données à l'Annexe A de la présente Norme européenne.
NOTE Les types de robinet suivants sont communément utilisés dans ce genre d’application : robinets à tournant sphérique, robinets-vannes et robinets à papillon.
La présente Norme européenne ne comprend pas de règles de calcul pour les charges et les contraintes. Celles-ci dépendent de la configuration du système lors de son installation. Les règles de conception et d'installation sont données dans l'EN 13941:2009+A1:2010.
Cevi za daljinsko ogrevanje - Izolirani vezani cevni sistemi za podzemeljska toplovodna omrežja - Sestav jeklenih ventilov za jeklene cevi, poliuretanske toplotne izolacije in zunanjega polietilenskega plašča
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2014
1DGRPHãþD
SIST EN 488:2011
&HYL]DGDOMLQVNRRJUHYDQMH,]ROLUDQLYH]DQLFHYQLVLVWHPL]DSRG]HPHOMVND
WRSORYRGQDRPUHåMD6HVWDYMHNOHQLKYHQWLORY]DMHNOHQHFHYLSROLXUHWDQVNH
WRSORWQHL]RODFLMHLQ]XQDQMHJDSROLHWLOHQVNHJDSODãþD
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water
networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation
and outer casing of polyethylene
Fernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt
erdverlegte Fernwärmenetze - Vorgedämmte Absperrarmaturen für Stahlmediumrohre
mit Polyurethan-Wärmedämmung und Außenmantel aus Polyethylen
Tuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour les réseaux
d'eau chaude enterrés directement - Robinets préisolés pour tubes de service en acier,
isolation thermique en polyuréthane et tube de protection en polyéthylène
Ta slovenski standard je istoveten z: EN 488:2011+A1:2014
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.060.01 Ventili na splošno Valves in general
91.140.65 Oprema za ogrevanje vode Water heating equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 488:2011+A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2014
ICS 23.060.01 Supersedes EN 488:2011
English Version
District heating pipes - Preinsulated bonded pipe systems for
directly buried hot water networks - Steel valve assembly for
steel service pipes, polyurethane thermal insulation and outer
casing of polyethylene
Tuyaux de chauffage urbain - Systèmes bloqués de tuyaux Fernwärmerohre - Werkmäßig gedämmte
préisolés pour les réseaux d'eau chaude enterrés Verbundmantelrohrsysteme für direkt erdverlegte
directement - Robinets préisolés pour tubes de service en Fernwärmenetze - Vorgedämmte Absperrarmaturen für
acier, isolation thermique en polyuréthane et tube de Stahlmediumrohre mit Polyurethan-Wärmedämmung und
protection en polyéthylène Außenmantel aus Polyethylen
This European Standard was approved by CEN on 19 February 2011 and includes Amendment 1 approved by CEN on 30 November 2013.
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 488:2011+A1:2014 E
worldwide for CEN national Members.
Contents Page
Foreword .4
1 Scope .7
2 Normative references .7
3 Terms and definitions .8
4 Requirements .9
4.1 Pressure ratings for valves .9
4.1.1 General .9
4.1.2 Valves without indicated flow direction . 10
4.2 Service temperatures for valves . 10
4.3 Steel parts . 10
4.3.1 General . 10
4.3.2 Valve . 10
4.3.3 Valve extension pipe . 10
4.3.4 Welding ends . 10
4.3.5 Welding of steel parts . 10
4.4 Casing . 10
4.4.1 General . 10
4.4.2 Requirements for polyethylene welding . 10
4.4.3 Diameter and wall thickness of the casing . 11
4.5 Polyurethane rigid foam insulation (PUR) . 11
4.5.1 General . 11
4.5.2 Minimum insulation thickness . 11
4.6 Valve assembly . 11
4.6.1 Ends of valve assembly . 11
4.6.2 End of stem construction . 11
4.6.3 Main dimensions of the valve assembly . 12
4.6.4 Installation of measuring elements. 13
4.7 Requirements for effective operation and maintenance . 13
4.8 Resistance to axial forces and bending moments . 13
5 Testing, test methods and test requirements . 13
5.1 General . 13
5.2 Test specimens . 13
5.2.1 General . 13
5.2.2 Test specimens for type testing steel parts of valve . 14
5.2.3 Test specimens from casings and polyurethane foam. 14
5.3 Steel parts . 14
5.3.1 General . 14
5.3.2 Type test of the steel parts . 14
5.3.3 Production testing of valves . 16
5.4 Casing . 17
5.4.1 General . 17
5.4.2 Leak-tightness of the welded casing . 17
5.5 Polyurethane rigid foam insulation . 17
5.6 Valve assembly . 17
5.7 Surveillance system . 17
6 Marking . 17
6.1 General . 17
6.2 Steel valve . 17
6.3 Casing . 17
6.4 Valve assembly . 18
7 Installation and maintenance . 18
Annex A (informative) Guidelines for inspection and testing . 19
A.1 General . 19
A.2 Manufacturer’s type test . 19
A.3 Manufacturer’s quality control . 19
A.4 External inspection . 19
A.5 Extent of inspection . 19
A.6 Manufacturer’s responsibility . 19
Annex B (normative) Resistance to axial force and bending moment . 22
B.1 Axial strength test . 22
B.2 Bending test . 22
Annex C (normative) Resistance to bending forces . 24
C.1 Resistance to bending forces . 24
Bibliography . 30
Foreword
This document (EN 488:2011+A1:2014) has been prepared by Technical Committee CEN/TC 107
“Prefabricated district heating 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 August 2014, and conflicting national standards shall be withdrawn at
the latest by August 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document includes Amendment 1, approved by CEN on 2013-11-30.
!This document includes Amendment A1 to EN 488:2011, that comprises technical changes to:
- Sub-Clause 4.6.2, End of stem construction."
This document supersedes !EN 488:2011".
The start and finish of text introduced or altered by amendment is indicated in the text by tags
!".
Annex A is informative, Annexes B and C are normative.
This docum
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.