EN 1555-4:2021
(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 document specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels.
It is applicable to isolating unidirectional and bi-directional valves with spigot ends or electrofusion sockets intended to be fused with PE pipes or fittings conforming to EN 1555-2:2021 and EN 1555-3:2021 respectively.
Valves made from materials other than PE, designed for the supply of gaseous fuels conforming to the relevant standards can be used in PE piping systems according to EN 1555 (all parts), provided that they have PE connections for butt fusion or electrofusion ends, including integrated material transition joints, conforming to EN 1555-3:2021.
It also specifies the test parameters for the test methods referred to in this document.
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 bar1 at a reference temperature of 20 °C for design purposes;
NOTE 1 For the purpose of this document and the references to EN ISO 82332, MOP is considered to be nominal pressure.
b) an operating temperature between −20 °C to 40 °C.
NOTE 2 For operating temperatures between 20 °C and 40 °C, derating coefficients are defined in EN 1555-5.
EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours.
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.
This document covers valve bodies designed for connection with pipes with a nominal outside diameter dn ≤ 400 mm.
Kunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) - Teil 4: Armaturen
Dieses Dokument legt die Eigenschaften von Armaturen aus Polyethylen (PE) für Rohrleitungssysteme im Bereich der Versorgung mit gasförmigen Brennstoffen fest.
Es ist anzuwenden für Absperrarmaturen mit einer und mit zwei Durchflussrichtungen, die über Schweißenden oder Heizwendel-Schweißmuffen verfügen, und dafür vorgesehen sind, mit Rohren oder Formstücken aus PE nach EN 1555 2:2021 bzw. EN 1555 3:2021 verschweißt zu werden.
Armaturen aus anderen Werkstoffen als PE, die für die Versorgung mit gasförmigen Brennstoffen in Übereinstimmung mit den maßgebenden Normen ausgelegt sind, können in PE Rohrleitungssystemen nach EN 1555 (alle Teile) unter der Voraussetzung verwendet werden, dass sie über PE Anschlüsse für Stumpf- oder Heizwendelschweißung einschließlich integrierter Werkstoffübergangsverbindungen nach EN 1555 3:2021 verfügen.
Das Dokument legt auch die Prüfparameter für die Prüfverfahren fest, auf die in diesem Dokument verwiesen wird.
In Verbindung mit Teil 1, Teil 2, Teil 3 und Teil 5 von EN 1555 gilt es für Armaturen aus PE, deren Verbindungen untereinander sowie mit Rohrleitungsteilen aus PE und anderen Werkstoffen, die für die Verwendung unter den folgenden Bedingungen vorgesehen sind:
a) für einen maximal zulässigen Betriebsdruck MOP (en: maximum operating pressure) von höchstens 10 bar bei einer Bezugstemperatur von 20 °C für Bemessungszwecke;
ANMERKUNG 1 Für die Anwendung dieses Dokumentes und der Verweisungen auf EN ISO 82332 wird MOP als Nenndruck angesehen.
b) für eine Betriebstemperatur zwischen −20 °C und 40 °C.
ANMERKUNG 2 Für Betriebstemperaturen zwischen 20 °C und 40 °C sind Minderungsfaktoren festgelegt in EN 1555 5.
EN 1555 (alle Teile) deckt einen Bereich von maximal zulässigen Betriebsdrücken ab und enthält Anforderungen bezüglich Farben.
ANMERKUNG 3 Es liegt in der Verantwortung des Auftraggebers oder Planers, aus diesen Kriterien die geeignete Auswahl zu treffen, unter Berücksichtigung ihrer spezifischen Anforderungen und jeglicher relevanter nationaler Festlegungen und Verfahrensweisen oder Vorschriften für die Verlegung.
Dieses Dokument behandelt Armaturenkörper, die für die Verbindung mit Rohren mit einem Nennaußendurchmesser dn ≤ 400 mm ausgelegt sind.
Systèmes de canalisations en plastique pour la distribution de combustibles gazeux — Polyéthylène (PE) — Partie 4 : Robinets
Le présent document spécifie les caractéristiques des robinets en polyéthylène (PE) pour les systèmes de canalisations destinés à la distribution de combustibles gazeux.
Il s’applique aux robinets d’isolement unidirectionnels et aux robinets d’isolement bidirectionnels avec des extrémités à bouts mâles ou des emboîtures électrosoudables prévues pour être soudées à des tubes ou à des raccords en PE conformes à l’EN 1555-2:2021 et à l’EN 1555-3:2021, respectivement.
Les robinets fabriqués à partir d’autres matières que le PE, conçus pour la distribution de combustibles gazeux conformes aux normes applicables, peuvent être utilisés dans les systèmes de canalisations en PE conformément à l’EN 1555 (toutes les parties), à condition qu’ils aient des raccordements en PE pour soudage bout à bout ou des extrémités électrosoudables ainsi que des assemblages de transition intégrés conformes à l’EN 1555-3:2021.
Il spécifie également les paramètres d’essai pour les méthodes d’essai référencées dans le présent document.
Conjointement avec les Parties 1, 2, 3 et 5 de l’EN 1555, il s’applique aux robinets en PE et à leurs assemblages, ainsi qu’aux 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, inférieure ou égale à 10 bar1, à une température de référence de 20 °C pour les besoins des calculs ;
NOTE 1 Pour les besoins du présent document et en référence à l’EN ISO 82332, la MOP est considérée comme la pression nominale.
b) une température de service comprise entre –20 °C et 40 °C.
NOTE 2 Pour des températures de service comprises entre 20 °C et 40 °C, les facteurs de réduction sont définis dans l’EN 1555-5.
L’EN 1555 (toutes les parties) couvre une gamme de pressions maximales de service et donne les exigences concernant les couleurs.
NOTE 3 Il est de la responsabilité de l’acheteur ou du prescripteur d’effectuer les choix appropriés à partir de ces données, en tenant compte des exigences particulières et de toute réglementation nationale applicable, ainsi que des pratiques ou codes de pose.
Le présent document couvre les corps de robinets conçus pour être raccordés à des tubes d’un diamètre extérieur nominal dn ≤ 400 mm.
Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Polietilen (PE) - 4. del: Ventili
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2021
Nadomešča:
SIST EN 1555-4:2011
Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Polietilen
(PE) - 4. del: Ventili
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4:
Valves
Kunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) - Teil 4:
Armaturen
Systèmes de canalisations en plastique pour la distribution de combustibles gazeux —
Polyéthylène (PE) — Partie 4 : Robinets
Ta slovenski standard je istoveten z: EN 1555-4:2021
ICS:
83.140.30 Polimerne cevi in fitingi za Plastics pipes and fittings for
snovi, ki niso tekočine non fluid use
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1555-4
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2021
EUROPÄISCHE NORM
ICS 23.060.99 Supersedes EN 1555-4:2011
English Version
Plastics piping systems for the supply of gaseous fuels -
Polyethylene (PE) - Part 4: Valves
Systèmes de canalisations en plastique pour la Kunststoff-Rohrleitungssysteme für die Gasversorgung
distribution de combustibles gazeux - Polyéthylène - Polyethylen (PE) - Teil 4: Armaturen
(PE) - Partie 4 : Robinets
This European Standard was approved by CEN on 7 June 2021.
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, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1555-4:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 9
3.1 General . 9
3.2 Terms relating to design . 9
4 Symbols and abbreviations . 10
5 Material . 10
5.1 Compound for valve body . 10
5.2 Material for non-polyethylene parts . 10
5.2.1 General . 10
5.2.2 Metal parts . 11
5.2.3 Sealing materials . 11
5.2.4 Greases and lubricants. 11
5.2.5 Assembly . 11
6 General characteristics . 11
6.1 Appearance of the valve . 11
6.2 Colour . 11
6.3 Design . 11
6.3.1 General . 11
6.3.2 Valve body . 11
6.3.3 Valve ends . 11
6.3.4 Operating device . 12
6.3.5 Seals . 12
7 Geometrical characteristics . 12
7.1 General . 12
7.2 Measurement of dimensions. 12
7.3 Dimensions of spigot ends for valves . 12
7.4 Dimensions of valves with electrofusion sockets . 12
7.5 Dimensions of the operating device . 12
8 Mechanical characteristics of assembled valves . 13
8.1 General . 13
8.2 Requirements . 13
8.2.1 General . 13
8.2.2 Air flow rate . 19
9 Physical characteristics . 19
9.1 Conditioning . 19
9.2 Requirements . 19
10 Performance requirements . 20
11 Technical file . 20
12 Marking . 21
12.1 General . 21
12.2 Minimum required marking . 21
12.3 Additional marking . 22
13 Delivery conditions . 22
Annex A (normative) Determination of the leaktightness of seat(s) and packing . 23
Annex B (normative) Test method for leaktightness and ease of operation after tensile loading 25
Bibliography. 27
European foreword
This document (EN 1555-4:2021) 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 January 2022, and conflicting national standards shall be withdrawn at
the latest by January 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1555-4:2011.
In comparison with the previous version, the following technical modifications have been introduced:
— PE 100-RC type materials with enhanced resistance to slow crack growth have been added.
— Annex A in EN 1555-1:2021 now discusses the performance of this type of material and gives additional
information for non-conventional installation techniques.
— The diameter range for valves has been increased to 400 mm.
— An improved description of the leaktightness test is given.
— Annex B has been added to describe the leaktightness test after the tensile test, following the withdrawal
of ISO 10933.
— Test methods have been updated.
— A new method has been added for PE 100-RC materials.
This document 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 [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).
Any feedback and questions on this document should be directed to the users’ national standards body. A
complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of North Macedonia, Romania,
Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
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