EN 12201-4:2024
(Main)Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 4: Valves for water supply systems
Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 4: Valves for water supply systems
This document specifies the characteristics of valves or valve bodies made from polyethylene (PE) for buried and above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drains and sewers under pressure, vacuum sewer systems, and water for other purposes, with the exception of industrial applications.
NOTE 1 For PE components intended for the conveyance of water for human consumption and raw water prior to treatment, attention is drawn to 6.4. Components manufactured for water for other purposes, drains and sewers, and vacuum systems are possibly not suitable for water supply for human consumption.
NOTE 2 Industrial application is covered by EN ISO 15494 [2].
The intended use includes sea outfalls, laid in water and pipes suspended below bridges.
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 12201-2 and EN 12201-3 respectively.
Valves made from materials other than PE, conforming to the relevant standards can be used in PE piping systems according to EN 12201, provided that they have PE connections for butt fusion or electrofusion ends, conforming to EN 12201-3, or material transition joints (e.g. flanged joints).
NOTE 3 For valves or valve bodies intended for drains and sewers, additional information is given in Clause 9.
It also specifies the test parameters for the test methods referred to in this document.
In conjunction with EN 12201-1, EN 12201 2, EN 12201 3 and EN 12201 5, this document is applicable to PE pipes, fittings and valves, their joints and joints with components of PE and other materials intended to be used under the following conditions:
a) allowable operating pressure, PFA, up to 25 bar ;
b) an operating temperature of 20 °C as a reference temperature.
NOTE 4 For applications operating at constant temperature greater than 20 °C and up to 50 °C, see EN 12201-1:2024, Annex A.
The EN 12201 series covers a range of allowable operating pressures and gives requirements concerning colours and additives.
NOTE 5 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 guidance or regulations and installation practices or codes.
This document covers valves for pipes with a nominal outside diameter dn ≤ 400 mm.
Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für Entwässerungs- und Abwasserdruckleitungen - Polyethylen (PE) - Teil 4: Armaturen für Wasserversorgungssysteme
Dieses Dokument legt die Eigenschaften von Armaturen oder Armaturenkörpern aus Polyethylen (PE) für erdverlegte und oberirdische Anwendungen fest, die für den Transport von Trinkwasser, des zur Aufbereitung vorgesehenen Rohwassers, für Entwässerungs- und Abwasserdruckleitungen, Unterdruckentwässerungssysteme sowie für den Transport von Brauchwasser vorgesehen sind, mit Ausnahme von industriellen Anwendungen.
ANMERKUNG 1 In Zusammenhang mit Rohrleitungsteilen aus PE für den Transport von Trinkwasser einschließlich des aufzubereitenden Rohwassers wird auf 6.4 verwiesen. Rohrleitungsteile, die für den Transport von Brauchwasser, für Entwässerungs- und Abwasserleitungen sowie für Unterdrucksysteme gefertigt wurden, sind möglicherweise nicht für die Versorgung mit Trinkwasser geeignet.
ANMERKUNG 2 Industrielle Anwendungen sind durch EN ISO 15494 [2] abgedeckt.
Die bestimmungsgemäße Verwendung umfasst die Entwässerung ins Meer (Siele), in Gewässern verlegte Rohre sowie Düker und Brückenleitungen.
Es ist anwendbar auf Absperrarmaturen mit einer und mit zwei Durchflussrichtungen, die über Schweißenden oder Heizwendel-Schweißmuffen verfügen, die mit PE Rohren oder Formstücken nach EN 12201 2 und EN 12201 3 verschweißt werden sollen.
Armaturen aus anderen Werkstoffen als PE, die den einschlägigen Normen entsprechen, können in Rohrleitungssystemen aus PE nach EN 12201 unter der Voraussetzung eingebaut werden, dass sie über PE Anschlüsse für Stumpf- oder Heizwendelschweißung nach EN 12201 3 oder Werkstoffübergangsverbindungen (z. B. Flanschverbindungen) verfügen.
ANMERKUNG 3 Für Armaturen oder Armaturenkörper, die für Abwasserleitungen und Abwasserkanäle bestimmt sind, sind zusätzliche Informationen in Abschnitt 9 enthalten.
Dieses Dokument legt auch die Prüfparameter für die Prüfverfahren fest, auf die in diesem Dokument verwiesen wird.
In Verbindung mit EN 12201 1, EN 12201 2, EN 12201 3 und EN 12201 5 ist dieses Dokument anwendbar für Rohre, Formstücke und Armaturen aus PE, deren Verbindungen untereinander sowie mit anderen Rohrleitungsteilen aus PE und aus anderen Werkstoffen, die zur Verwendung unter den folgenden Bedingungen vorgesehen sind:
a) maximal zulässiger Bauteilbetriebsdruck PFA bis 25 bar ;
b) eine Betriebstemperatur von 20 °C als Bezugstemperatur.
ANMERKUNG 4 Für Anwendungsgebiete, in denen konstante Betriebstemperaturen von über 20 °C bis einschließlich 50 °C auftreten, siehe EN 12201 1:2024, Anhang A.
Die Normenreihe EN 12201 deckt einen Bereich von maximal zulässigen Bauteilbetriebsdrücken ab und enthält Anforderungen bezüglich Farben und Zusatzstoffen.
ANMERKUNG 5 Es liegt in der Verantwortung des Auftraggebers oder Planers, aus diesen Gesichtspunkten die geeignete Auswahl zu treffen, unter Berücksichtigung ihrer speziellen Anforderungen und jeglicher maßgebenden nationalen Empfehlungen oder Festlegungen und Verfahrensweisen oder Vorschriften für die Verlegung.
Dieses Dokument ist anwendbar für Armaturen für Rohre mit einem Nenn-Außendurchmesser von dn ≤ 400 mm.
Systèmes de canalisations en plastique pour l’alimentation en eau et pour les branchements et les collecteurs d’assainissement avec pression - Polyéthylène (PE) - Partie 4 : Robinets pour les systèmes d’alimentation en eau
Le présent document spécifie les caractéristiques des robinets ou des corps de robinets en polyéthylène (PE) pour des applications enterrées et non enterrées, prévus pour le transport d’eau destinée à la consommation humaine, l’eau brute avant traitement, les branchements et les collecteurs d’assainissement avec pression, les réseaux d’évacuation des eaux usées sous vide et l’eau destinée à d’autres usages, à l’exception des applications industrielles.
NOTE 1 Pour les composants en PE prévus pour le transport d’eau destinée à la consommation humaine et d’eau brute avant traitement, l’attention est attirée sur le paragraphe 6.4. Les composants fabriqués pour l’eau destinée à d’autres usages et pour les branchements et les collecteurs d’assainissement et les réseaux sous vide peuvent s’avérer inaptes pour l’alimentation en eau destinée à la consommation humaine.
NOTE 2 Les applications industrielles sont couvertes par l’EN ISO 15494 [2].
Les utilisations prévues comprennent les émissaires de rejet en mer, posés dans l’eau, et les canalisations suspendues sous des ponts.
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 12201 2 et à l’EN 12201 3, respectivement.
Les robinets fabriqués à partir d’autres matières que le PE, conformes aux normes applicables, peuvent être utilisés dans les systèmes de canalisations en PE conformément à l’EN 12201, à condition qu’ils aient des raccordements en PE pour soudage bout à bout ou des extrémités électrosoudables conformes à l’EN 12201 3 ou des assemblages de transition intégrés (par exemple assemblages à brides).
NOTE 3 Pour les robinets ou corps de robinets prévus pour les branchements et les collecteurs d’assainissement, des informations supplémentaires sont fournies à l’Article 9.
Il spécifie également les paramètres d’essai pour les méthodes d’essai référencées dans le présent document.
Conjointement avec l’EN 12201 1, l’EN 12201 2, l’EN 12201 3 et l’EN 12201 5, le présent document s’applique aux tubes, raccords et 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 de service admissible, PFA, jusqu’à 25 bar ;
b) une température de service de 20 °C comme température de référence.
NOTE 4 Pour les applications à température de service constante supérieure à 20 °C et jusqu’à 50 °C, voir l’EN 12201 1, Annexe A.
La série EN 12201 couvre une gamme de pressions de service admissibles et donne les exigences concernant les couleurs et les additifs.
NOTE 5 Il est de la responsabilité de l’acheteur ou du concepteur du réseau d’effectuer les choix appropriés à partir de ces données, en tenant compte des exigences particulières et de toute ligne directrice ou toute réglementation nationale applicable, ainsi que des pratiques ou codes de pose.
Le présent document traite des robinets pour les tubes ayant un diamètre extérieur nominal dn ≤ 400 mm.
Cevni sistemi iz polimernih materialov za oskrbo z vodo ter za odvodnjavanje in kanalizacijo pod tlakom - Polietilen (PE) - 4. del: Ventili za oskrbo z vodo
Ta dokument določa značilnosti ventilov oziroma ohišij ventilov iz polietilena za podzemno in nadzemno uporabo, namenjenih za prenos pitne vode, neobdelane vode pred obdelavo, odvodnjavanje in kanalizacijo pod tlakom, vakuumske kanalizacijske sisteme in vode za druge namene.
Uporablja se za enosmerne in dvosmerne ventile s spojnim zaključkom ali elektrofuzijskim spojem, ki so namenjeni za spajanje s polietilenskimi cevmi ali fitingi v skladu s standardom prEN 12201 2 oziroma prEN 12201 3.
S cevnimi sistemi iz polietilena v skladu z EN 12201 je mogoče uporabljati ventile, ki niso narejeni iz polietilena in ki so namenjeni oskrbi z vodo, odvodnjavanju in kanalizaciji pod tlakom in so skladni z zadevnimi standardi, če imajo polietilenske priključke za soležno taljene ali elektrofuzijske zaključke, vključno s prehodnimi spoji iz integriranega materiala, ki so skladni s standardom prEN 12201 3.
OPOMBA 1: Za ventile in ohišja ventilov, ki so namenjeni odvodnjavanju in kanalizaciji pod tlakom, morda veljajo dodatne specifikacije/preskusi v skladu z zahtevami kupca, predvsem za kemično odpornost komponent v stiku s tekočinami in za lastnosti delovanja.
OPOMBA 2: Za sestavne dele iz polietilena, ki so namenjeni za prenos pitne vode in neobdelane vode pred obdelavo, je treba upoštevati točko 5.4. Sestavni deli, ki so izdelani za vodo za druge namene, morda niso primerni za oskrbo s pitno vodo.
Določa tudi preskusne parametre za preskusne metode iz tega dokumenta.
OPOMBA 3: S cevnimi sistemi iz polietilena v skladu s standardom EN 12201 se lahko uporabljajo ventili, ki niso narejeni iz polietilena in ki so namenjeni oskrbi s pitno vodo in so skladni z zadevnimi standardi, če imajo ustrezne polietilenske priključke za soležno taljene ali elektrofuzijske zaključke (glej standard prEN 12201-3:2021).
V povezavi z deli 1, 2 ,3 in 5 standarda EN 12201 se uporablja za ventile iz polietilena, njihove spoje ter spoje s komponentami iz polietilena in drugih materialov, namenjene uporabi v naslednjih pogojih:
a) dovoljen obratovalni tlak PFA do 25 bar;
b) delovna temperatura 20 °C kot referenčna temperatura;
c) položeni v zemljo;
d) izpusti v morje;
e) položeni v vodo;
f) nad tlemi, vključno s cevmi, obešenimi pod mostovi.
OPOMBA 4: V zvezi z napravami, ki delujejo pri stalnih temperaturah od 20 do 40 °C, glej dodatek A k standardu prEN 12201 1:2021.
Standard EN 12201 zajema razpon dovoljenih obratovalnih tlakov in določa zahteve glede barv in aditivov.
OPOMBA 5: Za ustrezne izbire izdelkov je odgovoren kupec ali specifikator, pri čemer mora upoštevati konkretne zahteve ter vse pomembne nacionalne predpise in prakse ali kodekse vgradnje.
Ta del standarda EN 12201 zajema ventile za cevi z nominalnim zunanjim premerom dn ≤ 400 mm.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2024
Nadomešča:
SIST EN 12201-4:2012
Cevni sistemi iz polimernih materialov za oskrbo z vodo ter za odvodnjavanje in
kanalizacijo pod tlakom - Polietilen (PE) - 4. del: Ventili za oskrbo z vodo
Plastics piping systems for water supply, and for drains and sewers under pressure -
Polyethylene (PE) - Part 4: Valves for water supply systems
Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für Entwässerungs- und
Abwasserdruckleitungen - Polyethylen (PE) - Teil 4: Armaturen für
Wasserversorgungssysteme
Systèmes de canalisations en plastique pour l’alimentation en eau et pour les
branchements et les collecteurs d’assainissement avec pression - Polyéthylène (PE) -
Partie 4 : Robinets pour les systèmes d’alimentation en eau
Ta slovenski standard je istoveten z: EN 12201-4:2024
ICS:
23.060.01 Ventili na splošno Valves in general
91.140.60 Sistemi za oskrbo z vodo Water supply systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12201-4
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2024
EUROPÄISCHE NORM
ICS 23.040.20; 23.060.01 Supersedes EN 12201-4:2012
English Version
Plastics piping systems for water supply, and for drains
and sewers under pressure - Polyethylene (PE) - Part 4:
Valves for water supply systems
Systèmes de canalisations en plastique pour Kunststoff-Rohrleitungssysteme für die
l'alimentation en eau et pour les branchements et les Wasserversorgung und für Entwässerungs- und
collecteurs d'assainissement avec pression - Abwasserdruckleitungen - Polyethylen (PE) - Teil 4:
Polyéthylène (PE) - Partie 4 : Robinets pour les Armaturen für Wasserversorgungssysteme
systèmes d'alimentation en eau
This European Standard was approved by CEN on 10 December 2023.
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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12201-4:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 8
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 PE compound for the 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 .12
6.3.4 Operating device .12
6.3.5 Seals .12
6.4 Effect on water quality .12
7 Geometric 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 .13
8 Mechanical characteristics for assembled valves .13
8.1 General.13
8.2 Requirements .13
8.2.1 General.13
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 of valves .21
12.3 Additional Marking . 21
13 Delivery Conditions . 22
Annex A (normative) Determination of the leaktightness of seats and packing . 23
A.1 General . 23
A.2 Test piece . 23
A.3 Procedure . 23
A.4 Test report . 24
Annex B (normative) Test method for leaktightness and ease of operation after tensile
loading . 25
B.1 Apparatus . 25
B.2 Test piece . 25
B.3 Conditions . 25
B.4 Procedure . 25
B.5 Test report . 26
Bibliography . 27
European foreword
This document (EN 12201-4:2024) 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 July 2024, and conflicting national standards shall be
withdrawn at the latest by July 2024.
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 12201-4:2012.
System Standards are based on the results of the work being 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 12201 consists of the following parts:
— EN 12201-1, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 1: General;
— EN 12201-2, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 2: Pipes;
— EN 12201-3, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 3: Fittings;
— EN 12201-4, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 4: Valves for water supply systems (this document);
— EN 12201-5, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 5: Fitness for purpose of the system.
In addition, the following document provides guidance on the assessment of conformity:
— CEN/TS 12201-7, Plastics piping systems for water supply, and for drainage and sewerage under
pressure — Polyethylene (PE) — Part 7: Guidance for the assessment of conformity.
The revision of this System Standard has been carried out principally to add the PE 100-RC type materials
with enhanced resistance to slow crack growth. EN 12201-1:2024, Annex C 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
withdrawal of ISO 10933. In addition, test methods have been updated and a new method has been added
for PE 100-RC materials.
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, Türkiye and the United
Kingdom.
Introduction
This document, known as the System Standard, specifies the requirements for a piping system and its
components made from polyethylene (PE). The piping system is intended to be used for water supply
intended for human consumption, including the conveyance of raw water prior to treatment, drains and
sewers under pressure, vacuum sewer systems, and water for other purposes.
In respect of potential adverse effects on the quality of water intended for human consumption, caused
by the product covered by the EN 12201 series:
— this document provides no information as to whether the products may be used without restriction
in any of the Member States of the EU or EFTA;
NOTE Attention is drawn to the presence of national regulations and testing arrangements in relation to
products intended for use in water supply to ensure fitness for contact with drinking water.
Requirements and test methods for material and components, other than valves, are specified in
EN 12201-1, EN 12201-2 and EN 12201-3.
Characteristics for fitness of purpose are covered in EN 12201-5. CEN/TS 12201-7 [1] gives guidance for
the assessment of conformity.
This part of EN 12201 covers the characteristics of valves.
1 Scope
This document specifies the characteristics of valves or valve bodies made from polyethylene (PE) for
buried and above ground applications, intended for the conveyance of water for human consumption, raw
water prior to treatment, drains and sewers under pressure, vacuum sewer systems, and water for other
purposes, with the exception of industrial applications.
NOTE 1 For PE components intended for the conveyance of water for human consumption and raw water prior
to treatment, attention is drawn to 6.4. Components manufactured for water for other purposes, drains and sewers,
and vacuum systems are possibly not suitable for water supply for human consumption.
NOTE 2 Industrial application is covered by EN ISO 15494 [2].
The intended use includes sea outfalls, laid in water and pipes suspended below bridges.
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 12201-2 and EN 12201-3
respectively.
Valves made from materials other than PE, conforming to the relevant standards can be used in PE piping
systems according to EN 12201, provided that they have PE connections for butt fusion or electrofusion
ends, conforming to EN 12201-3, or material transition joints (e.g. flanged joints).
NOTE 3 For valves or valve bodies intended for drains and sewers, additional information is given in Clause 9.
It also specifies the test parameters for the test methods referred to in this document.
In conjunction with EN 12201-1, EN 12201-2, EN 12201-3 and EN 12201-5, this document is applicable
to PE pipes, fittings and valves, their joints and joints with components of PE and other materials intended
to be used under the following conditions:
a) allowable operating pressure, PFA, up to 25 bar ;
b) an operating temperature of 20 °C as a reference temperature.
NOTE 4 For applications operating at constant temperature greater than 20 °C and up to 50 °C, see EN 12201-
1:2024, Annex A.
The EN 12201 series covers a range of allowable operating pressures and gives requirements concerning
colours and additives.
NOTE 5 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 guidance or regulations and
installation practices or codes.
This document covers valves for pipes with a nominal outside diameter d ≤ 400 mm.
n
1 5 2
1 bar = 0,1 MPa = 10 Pa; 1 MPa = 1 N/mm .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 736-1, Valves — Terminology — Part 1: Definition of types of valves
EN 736-2, Valves — Terminology — Part 2: Definition of components of valves
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 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 12201-1, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 1: General
EN 12201-2, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 2: Pipes
EN 12201-3:2024, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 3: Fittings
EN 12201-5, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 5: Fitness for purpose of the system
EN ISO 1133-1, Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate
(MVR) of thermoplastics — Part 1: Standard method (ISO 1133-1)
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)
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)
EN ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126)
EN ISO 3127, Thermoplastics pipes — Determination of resistance to external blows — Round-the-clock
method (ISO 3127)
EN ISO 11357-6, Plastics — Differential scanning calorimetry (DSC) — Part 6: Determination of oxidation
induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) (ISO 11357-6)
ISO 161-1, Thermoplastics pipes for the conveyance of fluids — Nominal outside diameters and nominal
pressures — Part 1: Metric series
ISO 8233, Thermoplastic valves — Torque — Test method
ISO 18488, Polyethylene (PE) materials for piping systems — Determination of Strain Hardening Modulus
in relation to slow crack growth — Test method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12201-1, EN 736-1 and
EN 736-2 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
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3.1 General
3.1.1
external leaktightness
leaktightness of the body enveloping the space containing the water, with respect to the atmosphere
3.1.2
internal leaktightness
leaktightness between the inlet and the outlet of the valve, with the valve in the closed position
3.1.3
leakage
seepage of water from the valve body, or any component of the valve
3.1.4
valve body
main part of a valve which consists of an operating stop system and contains the obturator, seat(s),
stem(s) or shaft(s) and packing seals and provides the terminal ends for connection to the PE pipe/fittings
as applicable
3.1.5
operating device
part of a valve for connection with the operating key which allows the opening and closing of the valve
3.2 Terms relating to design
3.2.1
isolating valve
valve intended for use only in the closed or fully open position
[SOURCE: EN 736-1:2018]
3.2.2
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
[SOURCE: EN 736-3:2008]
3.2.3
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
[SOURCE: EN 736-3:2008]
3.2.4
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
[SOURCE: EN 736-3:2008]
4 Symbols and abbreviations
For the purposes of this document, the symbols and abbreviations given in EN 12201-1 apply.
5 Material
5.1 PE compound for the valve body
The PE compound from which the body of the valve, with spigot end or electrofusion socket is made shall
conform to EN 12201-1.
The PE components of the valve shall only be made from virgin material conforming to EN 12201-1.
5.2 Material for non-polyethylene parts
5.2.1 General
All components shall conform to the relevant European Standard(s). Alternative standards may be
applied in cases where suitable European Standard(s) do not exist. Fitness for purpose of the system of
the components shall be demonstrated.
The materials and the constituent elements used in making the valves (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 an expected lifetime under the following conditions
at least equal to that of the PE pipes conforming to EN 12201-2, with which they are intended to be used:
a) during storage;
b) under the effect of the water 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. Reworked materials shall not be used for
stress bearing polymeric parts.
Other materials used in valves in contact with the PE pipe shall not adversely affect the pipe performance
or initiate stress cracking.
The valve manufacturer shall ensure that any transition joint between polyethylene and non-
polyethylene parts and the valve body shall fulfil the requirements of EN 12201-3.
Metal valve bodies for PE piping systems up to 25 bars should conform to the relevant standard of
CEN/TC 69 “Industrial valves”.
5.2.2 Metal parts
All metal parts susceptible to corrosion shall be adequately protected, providing this is necessary for the
durability and function of the system.
When dissimilar metallic materials are used which may be in contact with moisture, steps shall be taken
to avoid the possibility of galvanic corrosion.
5.2.3 Sealing materials
Elastomeric seals shall conform to EN 681-1.
If other sealing materials are used they need to be proven for water supply and sewerage systems.
5.2.4 Greases and lubricants
Greases or lubricants s
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