SIST EN 1555-4:2011
(Main)Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves
This part of EN 1555 specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels.
NOTE 1 Valves made from other material than polyethylene designed for the supply of gaseous fuels conforming to the relevant standards are permitted to be used in PE piping system according to EN 1555 provided they have relevant PE connection for butt fusion or electrofusion ends (see prEN 1555 3:2009).
It also specifies the test parameters for the test methods referred to in this standard.
In conjunction with the other parts of EN 1555, it is applicable to PE valves, their joints and to joints with components of PE and other materials intended to be used under the following conditions:
a) a maximum operating pressure, MOP, up to and including 10 bar 1);
b) an operating temperature of 20 °C as reference temperature;
NOTE 2 For other operating temperatures, derating coefficients should be used, see prEN 1555 5:2009.
c) an operating temperature between 20 °C and +40 °C.
EN 1555 covers a range of maximum operating pressures and gives requirements concerning colours and additives.
NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.
It is applicable to bi-directional valves with spigot end or electrofusion socket intended to be fused with PE pipes conforming to prEN 1555 2:2009 without any fittings or with PE fittings conforming to prEN 1555 3:2009.
Kunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) - Teil 4: Armaturen
Dieser Teil von EN 1555 legt Anforderungen an Armaturen aus Polyethylen (PE) fest, die in Rohrleitungssystemen
für die Gasversorgung eingesetzt werden.
ANMERKUNG 1 Armaturen aus anderen Werkstoffen als Polyethylen (PE), die ebenfalls für den Einsatz in der
Gasversorgung vorgesehen sind und die die Anforderungen der entsprechenden Norm(en) erfüllen, dürfen in Rohrleitungssystemen
aus PE nach EN 1555 eingebaut werden, wenn die Verschweißbarkeit mit den entsprechenden
Anschlüssen aus PE mittels Stumpf- oder Heizwendelschweißung (siehe prEN 1555-3:2008) sichergestellt ist.
Er legt auch die Prüfparameter für die Prüfverfahren fest, auf die in dieser Norm verwiesen wird.
In Verbindung mit den übrigen Teilen der EN 1555 gilt dieser Teil für Armaturen aus PE, deren Verbindungen
untereinander sowie mit anderen Rohrleitungsteilen aus PE und anderen Werkstoffen, die unter den
folgenden Bedingungen für die Gasversorgung vorgesehen sind:
a) der maximal zulässige Betriebsdruck MOP beträgt höchstens 10 bar1);
b) es gilt eine Betriebstemperatur von 20 °C als Bezugstemperatur;
ANMERKUNG 2 Für andere Betriebstemperaturen können Minderungsfaktoren verwendet werden, siehe
prEN 1555-5:2008.
c) die Armaturen müssen für den Einsatz bei Betriebstemperaturen zwischen -20 °C und +40 °C geeignet
sein.
EN 1555 enthält Festlegungen über maximal zulässige Betriebsdrücke und legt Anforderungen an die
Einfärbung von Rohrleitungsteilen sowie die Verwendung von Zusatzstoffen fest.
ANMERKUNG 3 Der Anwender bzw. Auftraggeber ist unter Berücksichtigung der eigenen Anforderungen sowie der
geltenden nationalen Festlegungen und Verlegepraktiken für die entsprechende Auswahl dieser Kriterien verantwortlich.
Diese Norm gilt auch für Armaturen ohne definierte Durchflussrichtung, deren Schweißende oder Heizwendel-
Schweißmuffe zum Verschweißen mit Rohren aus PE nach prEN 1555-2:2008 ohne Formstücke oder mit
Formstücken aus PE nach prEN 1555-3:2008 bestimmt ist.
Systèmes de canalisations en plastique pour la distribution de combustibles gazeux - Polyéthylène (PE) - Partie 4: Robinets
La présente partie de l’EN 1555 spécifie les caractéristiques des robinets en polyéthylène (PE) pour les
systèmes de canalisations destinés à la distribution de combustibles gazeux.
NOTE 1 Les robinets fabriqués à partir d'autres matières que le polyéthylène conçus pour la distribution de
combustibles gazeux, conformes aux normes correspondantes, peuvent être utilisés dans les systèmes de canalisations
en PE conformément à l’EN 1555 à condition qu'ils aient des extrémités adaptées à l’assemblage par soudage bout à bout
ou par électrosoudage (voir le prEN 1555-3:2009).
Elle spécifie également les paramètres d'essai des méthodes d'essai auxquelles il est fait référence dans la
présente norme.
Conjointement avec les autres parties de l’EN 1555, elle s’applique aux robinets en PE et à leurs
assemblages, ainsi qu'à leurs assemblages avec des composants en PE et en d’autres matières destinés à
être utilisés dans les conditions suivantes :
a) une pression maximale de service, MOP, jusqu’à et y compris 10 bar 1 ;
b) une température de service de 20 °C, comme température de référence ;
NOTE 2 Pour d'autres températures de service, il convient d’utiliser des facteurs de réduction, voir le
prEN 1555-5:2009.
c) une température de service comprise entre – 20 °C et + 40 °C.
L'EN 1555 couvre une gamme de pressions maximales de service et donne les exigences concernant les
couleurs et les additifs.
NOTE 3 Il est de la responsabilité de l'acheteur ou du prescripteur de faire les choix appropriés de ces différents
aspects, en tenant compte des exigences particulières et des règlements nationaux correspondants, ainsi que des
pratiques ou des codes de pose.
Elle s'applique aux robinets bidirectionnels avec des extrémités à bout mâle ou des emboîtures
électrosoudables prévues pour être soudées à des tubes en PE conformes au prEN 1555-2:2009 sans aucun
raccord ou avec des raccords en PE conformes au prEN 1555-3:2009.
Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Polietilen (PE) - 4. del: Ventili
Ta del EN 1555 določa značilnosti ventilov iz polietilena (PE) za cevne sisteme na področju oskrbe s plinastimi gorivi.
OPOMBA 1: S PE-cevnimi sistemi v skladu z EN 155 se smejo uporabljati ventili, narejeni iz drugih materialov kot polietilena, ki so namenjeni oskrbi s plinastimi gorivi in so v skladu z ustreznimi standardi, pod pogojem, da imajo ustrezne PE-priključke za soležno taljene ali elektrofuzijske konce (glej prEN 1555 3:2009).
Določa tudi preskusne parametre za preskusne metode, navedene v tem standardu.
Skupaj z drugimi deli EN 1555 velja za PE-ventile, njihove spoje in spoje s komponentami iz PE in drugih materialov, namenjene uporabi v naslednjih pogojih:
a) najvišji obratovalni tlak, MOP, do vključno 10 bar,
b) obratovalna temperatura 20 °C kot referenčna temperatura,
OPOMBA 2: Pri drugih obratovalnih temperaturah se morajo uporabiti redukcijski koeficienti, glej prEN 1555 5:2009.
c) obratovalna temperatura med 20 °C in +40 °C.
EN 1555 zajema razpon najvišjih obratovalnih tlakov in podaja zahteve glede barv in aditivov.
OPOMBA 3: Za ustrezno izbiro med temi vidiki je odgovoren kupec ali specifikator, pri čemer mora upoštevati konkretne zahteve in vse pomembne nacionalne predpise in prakse ali kodekse vgradnje.
Velja za dvosmerne ventile s spojnim zatičem ali elektrofuzijskimi vtiči, ki se združijo s PE-pipami v skladu s prEN 1555 2:2009 brez fitingov ali s PE-fitingi v skladu s prEN 1555 3:2009.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Polietilen (PE) - 4. del: VentiliKunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) - Teil 4: ArmaturenSystèmes de canalisations en plastique pour la distribution de combustibles gazeux - Polyéthylène (PE) - Partie 4: RobinetsPlastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves91.140.40Sistemi za oskrbo s plinomGas supply systems83.140.30Cevi, fitingi in ventili iz polimernih materialovPlastics pipes, fittings and valvesICS:Ta slovenski standard je istoveten z:EN 1555-4:2011SIST EN 1555-4:2011en,fr,de01-december-2011SIST EN 1555-4:2011SLOVENSKI
STANDARDSIST EN 1555-4:20031DGRPHãþD
SIST EN 1555-4:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1555-4
May 2011 ICS 91.140.40; 23.060.99 Supersedes EN 1555-4:2002English Version
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves
Systèmes de canalisations en plastique pour la distribution de combustibles gazeux - Polyéthylène (PE) - Partie 4 : Robinets
Kunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) - Teil 4: Armaturen This European Standard was approved by CEN on 17 March 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1555-4:2011: ESIST EN 1555-4:2011
EN 1555-4:2011 (E) 2 Contents Page Foreword .3Introduction .41Scope .52Normative references .53Terms and definitions, symbols and abbreviations .64Material .84.1PE compound .84.2Material for non-polyethylene parts .85General characteristics .95.1Appearance of the valve .95.2Colour .95.3Design .96Geometrical characteristics . 106.1General . 106.2Measurement of dimensions . 106.3Dimensions of spigot ends for valves . 106.4Dimensions of valves with electrofusion sockets . 106.5Dimensions of the operating device . 107Mechanical characteristics of assembled valves . 117.1General . 117.2Requirements . 118Physical characteristics . 158.1Conditioning . 158.2Requirements . 159Performance requirements . 1610Marking . 1610.1General . 1610.2Minimum required marking . 1610.3Additional marking . 1711Delivery conditions . 17Annex A (normative)
Determination of the leaktightness of seat and packing . 18A.1General . 18A.2Test method . 18 SIST EN 1555-4:2011
EN 1555-4:2011 (E) 3 Foreword This document (EN 1555-4:2011) has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems”, the secretariat of which is held by NEN. 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 2011, and conflicting national standards shall be withdrawn at the latest by November 2011. 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 supersedes EN 1555-4:2002. It has been prepared in liaison with Technical Committee CEN/TC 234 "Gas infrastructure". System Standards are based on the results of the work undertaken in ISO/TC 138 "Plastics pipes, fittings and valves for the transport of fluids", which is a Technical Committee of the International Organization for Standardization (ISO). They are supported by separate standards on test methods to which references are made throughout the System Standard. The System Standards are consistent with general standards on functional requirements and on recommended practice for installation. EN 1555 consists of the following parts: EN 1555-1, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 1: General; EN 1555-2, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 2: Pipes; EN 1555-3, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 3: Fittings; EN 1555-4, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 4: Valves (this standard); EN 1555-5, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 5: Fitness for purpose of the system; CEN/TS 1555-7, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 7: Guidance for the assessment of conformity. NOTE EN 12007-2:2000 [1] prepared by CEN/TC 234 “Gas infrastructure” deals with the recommended practice for installation of plastics pipes system in accordance with EN 1555 (all parts). According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 1555-4:2011
EN 1555-4:2011 (E) 4 Introduction The System Standard, of which this is Part 4, specifies the requirements for a piping system and its components made from polyethylene (PE) and which is intended to be used for the supply of gaseous fuels. Requirements and test methods for material and components, other than valves, are specified in EN 1555-1, EN 1555-2 and EN 1555-3. Characteristics for fitness for purpose are covered in EN 1555-5. CEN/TS 1555-7 [2] gives guidance for assessment of conformity. Recommended practice for installation is given in EN 12007-2:2000 [1] prepared by CEN/TC 234. This part of EN 1555 covers the characteristics of valves. SIST EN 1555-4:2011
EN 1555-4:2011 (E) 5 1 Scope This part of EN 1555 specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. NOTE 1 Valves made from other material than polyethylene designed for the supply of gaseous fuels conforming to the relevant standards are permitted to be used in PE piping system according to EN 1555 provided they have relevant PE connection for butt fusion or electrofusion ends (see EN 1555-3). It also specifies the test parameters for the test methods referred to in this standard. In conjunction with Parts 1, 2, 3 and 5 of EN 1555, it is applicable to PE valves, their joints and to joints with components of PE and other materials intended to be used under the following conditions: a) a maximum operating pressure, MOP, up to and including 10 bar 1); b) an operating temperature of 20 °C as reference temperature; NOTE 2 For other operating temperatures, derating coefficients should be used, see EN 1555-5. c) an operating temperature between -20 °C and +40 °C. EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours and additives. NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. It is applicable to bi-directional valves with spigot end or electrofusion socket intended to be fused with PE pipes conforming to EN 1555-2 without any fittings or with PE fittings conforming to EN 1555-3. This European Standard covers valves for pipes with a nominal outside diameter dn ≤ 315 mm. 2 Normative references The following referenced documents are indispensable for the application 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 682, Elastomeric Seals
Materials requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids EN 736-1:1995, Valves
Terminology
Part 1: Definition of types of valves EN 736-2:1997, Valves
Terminology
Part 2: Definition of components of valves EN 744:1995, Plastics piping and ducting systems
Thermoplastics pipes
Test method for resistance to external blows by the round-the-clock method EN 1555-1:2010, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 1: General EN 1555-2, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 2: Pipes
1) 1 bar = 0,1 MPa.
SIST EN 1555-4:2011
EN 1555-4:2011 (E) 6 EN 1555-3:2010, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 3: Fittings EN 1555-5, Plastics piping systems for the supply of gaseous fuels
Polyethylene (PE)
Part 5: Fitness for purpose of the system EN 1680, Plastics piping systems
Valves for polyethylene (PE) piping systems
Test method for leaktightness under and after bending applied to the operating mechanisms EN 1704, Plastics piping systems
Thermoplastics valves
Test method for the integrity of a valve after temperature cycling under bending EN 1705, Plastics piping systems
Thermoplastics valves
Test method for the integrity of a valve after an external blow EN 12100, Plastics piping systems
Polyethylene (PE) valves
Test method for resistance to bending between supports EN 12117, Plastics piping systems
Fittings, valves and ancillaries
Determination of gaseous flow rate/pressure drop relationships EN 12119, Plastics piping systems
Polyethylene (PE) valves
Test method for resistance to thermal cycling EN 28233, Thermoplastic valves
Torque
Test method (ISO 8233:1988) EN ISO 1133, Plastics — Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133:2005) EN ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the resistance to internal pressure — Part 1: General method (ISO 1167-1:2006) EN ISO 1167-4, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the resistance to internal pressure — Part 4: Preparation of assemblies (ISO 1167-4:2007) EN ISO 3126, Plastics piping systems
Plastics components
Determination of dimensions (ISO 3126:2005) ISO 10933, Polyethylene (PE) valves for gas distribution systems ISO 11357-6, Plastics
Differential scanning calorimetry (DSC)
Part 6: Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) 3 Terms and definitions, symbols and abbreviations For the purposes of this document, the terms and definitions, symbols and abbreviations given in EN 1555-1:2010, EN 736-1:1995, EN 736-2:1997 and the following apply. 3.1 external leaktightness leaktightness of the valve body enveloping the space containing the gas, with respect to the atmosphere 3.2 internal leaktightness leaktightness between the inlet and the outlet of the valve, with the valve in the closed position SIST EN 1555-4:2011
EN 1555-4:2011 (E) 7 3.3 leaktightness test test for both of the following characteristics: a)
the internal leaktightness of a valve's closing seat when closed and pressurized from either side; b)
the external leaktightness of a valve when half open 3.4 initiating torque torque required to initiate movement of the obturator 3.5 running torque torque required to achieve full opening or closing of the valve at maximum allowable operating pressure 3.6 leakage emission of gas from a valve body, or any component of a valve 3.7 valve body main part of a valve which contains the obturating device (closing element, the seat, the packing seals and the operating stop), as applicable and provides the terminal ends for connection to the PE pipe/fittings 3.8 operating device part of a valve for connection with the operating key which allows the opening and the closing of the valve 3.9 Terms relating to design
3.9.1
full bore valve valve with a flow section equal to or greater than 80 % of the section corresponding to the nominal inside diameter of the body end port [EN 736-3:2008] 3.9.2 clearway valve valve designed to have an unobstructed flow way, which allows for the passage of a theoretical sphere with a diameter that is not less than the nominal inside diameter of the body end port [EN 736-3:2008] 3.9.3 reduced bore valve valve with a flow section equal to or greater than 36 % of the section corresponding to the nominal inside diameter of the body end port and which does not correspond to the full bore valve [EN 736-3:2008] SIST EN 1555-4:2011
EN 1555-4:2011 (E) 8 4 Material 4.1 PE compound The PE compound from which the valve body with spigot or electrofusion socket is made shall conform to EN 1555-1. The PE components of the valve shall be made only from virgin material conforming to EN 1555-1. 4.2 Material for non-polyethylene parts 4.2.1 General All components shall conform to the relevant EN standard(s). Alternative standards may be applied in cases where the suitable EN standard(s) do not exist provided a fitness for purpose of the components shall be demonstrated. The materials and the constituent elements used in making the valve (including elastomers, greases and any metal parts as may be used) shall be as resistant to the external and internal environments as the other elements of the piping system and shall have a life expectancy under the following conditions at least equal to that of the PE pipes conforming to EN 1555-2 with which they are intended to be used: a)
during storage; b)
under the effect of the gas conveyed therein; c)
with respect to the service environment and operating conditions. The requirements for the level of material performance of non-polyethylene parts shall be at least as stringent as that of the PE compound for the piping system. Other materials used in valves in contact with the PE pipe shall not adversely affect pipe performance or initiate stress cracking. NOTE Metal valve bodies for PE piping systems up to 10 bars should conform to the relevant standard of
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