EN 12201-3:2024
(Main)Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 3: Fittings
Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 3: Fittings
This document specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of mechanical fittings 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 application.
NOTE 1 For PE components intended for the conveyance of water for human consumption and raw water prior to treatment, attention is drawn to subclause 6.6 of this document. Components manufactured for water for other purposes, drains and sewers, and vacuum sewer systems are possibly not suitable for water supply for human consumption.
NOTE 2 Industrial application is covered by EN ISO 15494 [4].
The intended uses include sea outfalls, laid in water and pipes suspended below bridges.
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 4 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 3 For applications operating at constant temperature greater than 20 °C and up to and including 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.
NOTE 4 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.
These fittings can be of the following types:
— electrofusion socket fittings;
— electrofusion saddle fittings;
— spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);
— socket fusion fittings (see Annex A);
— mechanical fittings;
— fabricated fittings (see Annex B).
Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für Entwässerungs- und Abwasserdruckleitungen - Polyethylen (PE) - Teil 3: Formstücke
Dieses Dokument legt die Eigenschaften für Formstücke für Schweißverbindungen aus Polyethylen (PE) sowie Formstücke für mechanische Verbindungen 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 6.6 des vorliegenden Dokuments 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 [4] abgedeckt.
Die bestimmungsgemäße Verwendung umfasst die Entwässerung ins Meer (Siele), in Gewässern verlegte Rohre sowie Düker und Brückenleitungen.
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 4 und EN 12201 5 ist dieses Dokument anwendbar für Rohre, Formstücke und Armaturen aus PE, deren Verbindungen untereinander sowie mit 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 3 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.
ANMERKUNG 4 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.
Diese Formstücke können die folgenden Typen sein:
- Heizwendel-Schweißmuffen;
- Heizwendel-Schweißsättel;
- Formstücke mit Schweißenden (für Heizelementstumpfschweißung unter Verwendung von Heizelementen und Heizwendel-Schweißmuffen);
- Formstücke für Heizelementmuffenschweißung (siehe Anhang A);
- Formstücke für mechanische Verbindungen;
- gefertigte Formstücke (siehe Anhang B).
Systèmes de canalisations en plastique pour l'alimentation en eau et pour les branchements et les collecteurs d'assainissement avec pression - Polyéthylène (PE) - Partie 3 : Raccords
LLe présent document spécifie les caractéristiques des raccords soudables en polyéthylène (PE) ainsi que celles des raccords mécaniques fabriqués 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 6.6 du présent document. Les composants fabriqués pour l’eau destinée à d’autres usages et pour les branchements et les collecteurs d’assainissement et les réseaux d’évacuation des eaux usées 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 [4].
Les utilisations prévues comprennent les émissaires de rejet en mer, posés dans l’eau, et les canalisations suspendues sous des ponts.
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 4 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 3 Pour les applications à température de service constante supérieure à 20 °C et jusqu’à 50 °C inclus, voir l’EN 12201 1:2024, Annexe A.
La série EN 12201 couvre une gamme de pressions de service admissibles et donne les exigences concernant les couleurs.
NOTE 4 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.
Ces raccords peuvent appartenir aux catégories suivantes :
— raccords à emboîtures électrosoudables ;
— selles électrosoudables ;
— raccords à bouts mâles (pour soudage bout à bout à l’aide d’outils chauffants et pour soudage par emboîture électrosoudable) ;
— raccords à emboîtures soudables (voir l’Annexe A) ;
— raccords mécaniques ;
— raccords façonnés (voir l’Annexe B).
Cevni sistemi iz polimernih materialov za oskrbo z vodo in za odvodnjavanje in kanalizacijo pod tlakom - Polietilen (PE) - 3. del: Fitingi
Ta dokument določa značilnosti polietilenskih fitingov 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.
OPOMBA 1: Za sestavne dele iz polietilena, ki so namenjeni za prenos pitne vode in neobdelane vode pred obdelavo, je treba upoštevati točko 6.6 tega dokumenta. Sestavni deli, ki so izdelani za vodo za druge namene, odvodnjavanje in kanalizacijo, morda niso primerni za oskrbo s pitno vodo.
Določa tudi preskusne parametre za preskusne metode iz tega dokumenta.
V povezavi z deli 1, 2 ,4 in 5 standarda EN 12201 se uporablja za fitinge 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 2: V zvezi z napravami, ki delujejo pri stalnih temperaturah od 20 do 40 °C, glej dodatek A k standardu prEN 12201 1:2021.
Skupina standardov EN 12201 zajema razpon najvišjih obratovalnih tlakov in določa zahteve glede barv.
OPOMBA 3: 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.
Ti fitingi so lahko naslednjih vrst:
a) fuzijski fitingi;
1) elektrofuzijski fitingi;
2) fitingi s spojnimi zatiči (za spajanje koncev z uporabo segretih orodij in spajanje s pomočjo elektrofuzijskega vtiča);
3) varilni fitingi z vtiči (glej dodatek A);
b) mehanični fitingi;
1) kompresijski fitingi;
2) prirobnični fitingi;
c) fabricirani fitingi (glej dodatek B).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2024
Nadomešča:
SIST EN 12201-3:2011+A1:2013
Cevni sistemi iz polimernih materialov za oskrbo z vodo in za odvodnjavanje in
kanalizacijo pod tlakom - Polietilen (PE) - 3. del: Fitingi
Plastics piping systems for water supply, and for drains and sewers under pressure -
Polyethylene (PE) - Part 3: Fittings
Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für Entwässerungs- und
Abwasserdruckleitungen - Polyethylen (PE) - Teil 3: Formstücke
Systèmes de canalisations en plastique pour l'alimentation en eau et pour les
branchements et les collecteurs d'assainissement avec pression - Polyéthylène (PE) -
Partie 3 : Raccords
Ta slovenski standard je istoveten z: EN 12201-3:2024
ICS:
23.040.45 Fitingi iz polimernih Plastics fittings
materialov
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 12201-3
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2024
EUROPÄISCHE NORM
ICS 23.040.45; 23.040.20 Supersedes EN 12201-3:2011+A1:2012
English Version
Plastics piping systems for water supply, and for drains
and sewers under pressure - Polyethylene (PE) - Part 3:
Fittings
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 3:
Polyéthylène (PE) - Partie 3 : Raccords Formstücke
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 12201-3:2024 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
4 Symbols and abbreviated terms . 10
5 Material . 10
5.1 PE compound for fittings . 10
5.2 Material for non-polyethylene parts. 10
5.2.1 General. 10
5.2.2 Metal parts. 10
5.2.3 Sealing materials . 11
5.2.4 Other materials . 11
6 General characteristics . 11
6.1 Appearance . 11
6.2 Design . 11
6.3 Colour . 11
6.4 Electrical characteristics for electrofusion fittings . 11
6.5 Appearance of factory made joints . 12
6.6 Effect on water quality . 12
7 Geometrical characteristics . 12
7.1 Measurement of dimensions . 12
7.2 Dimensions of electrofusion socket fittings . 12
7.2.1 Diameters and lengths of electrofusion sockets . 12
7.2.2 Wall thicknesses . 15
7.2.3 Out-of-roundness of the bore of a fitting (at any point) . 15
7.2.4 Spigots . 15
7.2.5 Other dimensions . 15
7.3 Dimensions of electrofusion saddle fittings . 15
7.4 Dimensions of spigot end fittings . 16
7.4.1 Diameters and lengths . 16
7.4.2 Wall thickness of fusion end . 19
7.4.3 Wall thickness of the fitting body . 19
7.4.4 Other dimensions . 19
7.5 Dimensions of socket fusion fittings . 19
7.6 Design and dimensions of mechanical fittings . 19
7.6.1 General. 19
7.6.2 Mechanical fittings with polyethylene spigot ends . 19
7.6.3 Mechanical fittings with polyethylene electrofusion sockets . 19
7.6.4 Threads . 19
7.7 Dimensions of fabricated fittings . 20
7.8 Dimensions of loose backing flanges and flange adapters . 20
8 Mechanical characteristics . 20
8.1 General . 20
8.2 Requirements . 20
8.3 Performance requirements . 24
9 Physical characteristics . 24
9.1 Conditioning . 24
9.2 Requirements . 24
10 Chemical resistance of fittings in contact with chemicals . 25
11 Performance requirements . 25
12 Technical information . 25
13 Marking . 26
13.1 General . 26
13.2 Minimum required marking of fittings . 26
13.3 Additional marking . 27
13.4 Fusion system recognition . 27
14 Delivery conditions . 27
Annex A (normative) Socket fusion fittings . 28
Annex B (normative) Fabricated fittings . 30
B.1 General . 30
B.2 Dimensions . 32
B.3 Segmented bends . 32
B.4 Swept bends . 34
B.5 Segmented tees . 35
Annex C (informative) Examples of typical terminal connection for electrofusion fittings . 37
Annex D (normative) Short-term pressure test method . 40
D.1 Principle . 40
D.2 Apparatus . 40
D.3 Test piece . 40
D.4 Procedure . 40
D.5 Test report . 41
Annex E (normative) Tensile test for fitting/pipe assemblies . 42
E.1 Principle . 42
E.2 Apparatus . 42
E.3 Test piece . 42
E.4 Procedure . 42
E.5 Test report . 42
Bibliography . 43
European foreword
This document (EN 12201-3:2024) 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 12201-3:2011+A1:2012.
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 (this document);
— 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;
— 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. In
addition, the size range has been increased for fabricated fittings, test methods have been updated.
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 specifies the requirements for a piping system and its components made from
polyethylene (PE), 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 fittings, are specified in
EN 12201-1, EN 12201-2 and EN 12201-4 [1].
Characteristics for fitness of purpose of the system are covered in EN 12201-5. CEN/TS 12201-7 [2] gives
guidance for the assessment of conformity.
This part of EN 12201 covers the characteristics of fittings.
1 Scope
This document specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of
mechanical fittings 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 application.
NOTE 1 For PE components intended for the conveyance of water for human consumption and raw water prior
to treatment, attention is drawn to subclause 6.6 of this document. Components manufactured for water for other
purposes, drains and sewers, and vacuum sewer systems are possibly not suitable for water supply for human
consumption.
NOTE 2 Industrial application is covered by EN ISO 15494 [4].
The intended uses include sea outfalls, laid in water and pipes suspended below bridges.
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 12201-4 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 3 For applications operating at constant temperature greater than 20 °C and up to and including 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.
NOTE 4 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.
These fittings can be of the following types:
— electrofusion socket fittings;
— electrofusion saddle fittings;
— spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);
— socket fusion fittings (see Annex A);
— mechanical fittings;
— fabricated fittings (see Annex B).
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 12201-1:2024, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 1: General
EN 12201-2:2024, Plastics piping systems for water supply, and for drains and sewers under pressure —
Polyethylene (PE) — Part 2: Pipes
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
CEN/TR 15438, Plastics piping systems — Guidance for coding of products and their intended uses
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 1167-1:2006, 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 1167-3, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 3: Preparation of components (ISO 1167-3)
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 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 4433-1, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 1: Immersion
test method
ISO 4433-2, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 2: Polyolefin
pipes
ISO 9624, Thermoplastics piping systems for fluids under pressure — Flange adapters and loose backing
flanges — Mating dimensions
ISO 12176-5, Plastics pipes and fittings — Equipment for fusion jointing polyethylene systems — Part 5:
Two-dimensional data coding of components and data exchange format for PE piping systems
ISO 13950, Plastics pipes and fittings — Automatic recognition systems for electrofusion joints
ISO 13951, Plastics piping systems — Test method for the resistance of plastic pipe/pipe or pipe/fitting
assemblies to tensile loading
ISO 13953, Polyethylene (PE) pipes and fittings — Determination of the tensile strength and failure mode
of test pieces from a butt-fused joint
ISO 13954, Plastics pipes and fittings — Peel decohesion test for polyethylene (PE) electrofusion assemblies
of nominal outside diameter greater than or equal to 90 mm
ISO 13955, Plastics pipes and fittings — Crushing decohesion test for polyethylene (PE) electrofusion
assemblies
ISO 13956, Plastics pipes and fittings — Decohesion test of polyethylene (PE) saddle fusion joints —
Evaluation of ductility of fusion joint interface by tear test
ISO 13957, Plastics pipes and fittings — Polyethylene (PE) tapping tees — Test method for impact resistance
ISO 17885:2021, Plastics piping systems — Mechanical fittings for pressure piping systems — Specifications
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 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
electrofusion socket fitting
polyethylene (PE) fitting which contains one or more integrated heating elements that are capable of
transforming electrical energy into heat to realize a fusion joint with a spigot end or a pipe
3.2
electrofusion saddle fitting
polyethylene (PE) fitting which contains one or more integrated heating elements that are capable of
transforming electrical energy into heat to realise a fusion joint onto a pipe
3.2.1
tapping tee
electrofusion saddle fitting (3.2) (top loading or wrap round) that contains a cutter to tap through the wall
of the main pipe and remains in the body of this fitting
3.2.2
branch saddle
electrofusion saddle fitting (3.2) (top loading or wrap round) that requires an ancillary cutting tool for
drilling a hole in the adjoining main pipe
3.3
spigot end fitting
polyethylene (PE) fitting where the outside diameter of the spigot end is equal to the nominal outside
diameter, d , of the corresponding pipe
n
3.4
mechanical fitting
fitting for assembling plastics pipes with each other or with a metal pipe or fitting, that includes one or
more compression zones to provide pressure integrity, leak tightness and resistance to end loads
[SOURCE: ISO 17885:2021]
3.5
fabricated fitting
fitting produced from pipe conforming to EN 12201-2 and/or from injection-moulded fittings in
accordance with this document
4 Symbols and abbreviated terms
For the purposes of this document, the symbols and abbreviations given in EN 12201-1 apply.
5 Material
5.1 PE compound for fittings
The stress-bearing PE parts of injection moulded fittings or compression moulded plates, for example the
main body of the fitting, shall only be made from virgin material conforming to EN 12201-1. The stress-
bearing PE parts of fittings made from pipe shall be made from pipe conforming to EN 12201-2, except
for the geometrical characteristics.
Other materials may be used for non-stress bearing parts, e.g. clamps for electrofusion saddles fittings,
that only maintain a function during installation.
A fitting can only be designated as a PE 100-RC fitting if it is produced from PE 100-RC materials, which
fulfil the requirements of EN 12201-1:2024 Tables 1 and 2, and is declared as PE 100-RC by the raw
material producer, and fulfil the requirements of Table 4 of this document for PE 100-RC.
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 Standards do not exist. In all cases, fitness for purpose of the
system of the components shall be demonstrated.
The materials and the constituent elements used in making the fitting (including elastomers 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 fluids being 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 parts.
Non-stress-bearing fitting parts may be made from other materials, e.g. clamps for electrofusion saddle
fittings that only maintain a function during installation.
Other materials used in fittings in contact with the PE pipe shall not adversely affect pipe performance or
initiate stress cracking.
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, steps shall be taken to avoid the possibility of galvanic
corrosion.
5.2.3 Sealing materials
Elastomeric seals shall conform to EN 681-1.
Other sealing materials are permitted if proven suitable for water supply systems.
5.2.4 Other materials
Greases or lubricants shall not exude onto fusion areas, and shall not affect the long-term performance of
fitting materials nor have any adverse effect on the quality of the water.
6 General characteristics
6.1 Appearance
When viewed without magnification, the internal and external surfaces of fittings shall be clean and shall
have no scoring, cavities and other surface defects to an extent that would prevent conformity to this
document.
No component of the fitting shall show any signs of damage, scratches, pitting, bubbles, blisters,
inclusions or cracks to an extent that would prevent conformity of the fittings to the requirements of this
document.
6.2 Design
The design of the fitting shall be such that, when assembling the fitting onto the pipe or other component
electrical coils and/or seals are not displaced.
Tapping tees may be provided with upper and lower end stops for the tapping cutter, or other means of
indicating the cutter position according to the manufacturer’s instructions.
Tapping tees may be provided with a means to prevent uncontrolled water release during tapping.
6.3 Colour
The colour of the PE parts of fittings shall be either black or blue. For fabricated fittings the colour
characteristics of pipes according to EN 12201-2 applies.
The blue colour is intended for components for the conveyance of water for human consumption only.
For above ground applications, all components other than black are unsuitable for service in direct UV
light without a protective layer.
6.4 Electrical characteristics for electrofusion fittings
The electrical protection that shall be provided by the fusion process depends on the voltage and the
current used and on the characteristics of the electricity power source.
For voltages greater than 25 V, direct human contact with energized parts shall not be possible when the
fitting is in the fusion cycle during assembly in accordance with the instructions of the manufacturers of
the fittings and of the assembly equipment, as applicable.
NOTE 1 Electrofusion fittings are part of an electrical circuit when connected to the control units. Definitions of
electrical circuits and applicable protections are found in the relevant IEC standards.
The tolerance on the electrical resistance of the fitting at 23 °C shall be stated by the manufacturer. The
resistance shall be in between nominal resistance (–10 %) and nominal resistance [(+10 %) + 0,1 Ω].
NOTE 2 0,1 Ω is the assumed value of the contact resistance.
The surface finish of the terminal pins shall allow a minimum contact resistance in order to satisfy the
resistance tolerance requirements.
NOTE 3 See Annex C for examples of typical electrofusion terminal connectors.
6.5 Appearance of factory made joints
The internal and external surfaces of the pipe and fitting after fusion jointing, examined visually without
magnification, shall be free from melt exudation outside the confines of the fitting, apart from that which
may be declared acceptable by the fitting manufacturer or used deliberately as a fusion marker.
Any melt exudation shall not cause wire movement in electrofusion fittings such that it leads to short-
circuiting, when jointed in accordance with the manufacturer’s instructions. There shall be no excessive
creasing of the internal surfaces of the adjoining pipes.
6.6 Effect on water quality
For fittings intended for the conveyance of water for human consumption attention is drawn to the
requirements of national regulations, for more information see Introduction.
7 Geometrical characteristics
7.1 Measurement of dimensions
The dimensions of the fitting shall be measured in accordance with EN ISO 3126, and rounded to the next
0,1 mm. In case of dispute, the measurement shall not be made less than 24 h after manufacture and after
being conditioned for at least 4 h at (23 ± 2) °C.
Additionally, for spigot end fittings provided with temporary supports, perform dimensional
measurement at least 1 h after removal of the supports.
Indirect measurement at the stage of production is allowed at shorter time periods provided that
evidence is shown of correlation.
7.2 Dimensions of electrofusion socket fittings
7.2.1 Diameters and lengths of electrofusion sockets
For electrofusion sockets (see Figure 1) having a nominal diameter given in Table 1, the socket diameter
and lengths shall be given by the manufacturer and shall conform to Table 1 with the following
conditions:
a) L ≥ 5 mm;
b) D ≥ d − 2e
2 n min
Key
D1 is the “mean inside diameter in the fusion zone” measured in a plane parallel to the plane of the mouth at
a distance of L + 0,5L from that face;
3 2
D is the bore which is the minimum diameter of the flow channel through the body of the fitting;
L1 is the depth of penetration of the pipe or male end of a spigot fitting; in the case of a coupling without a
stop, it is not greater than half the total length of the fitting;
L is the heated length within a socket as declared by the manufacturer to be the nominal length of the
fusion zone;
L3 is the distance between the mouth of the fitting and the start of the fusion zone as declared by the
manufacturer to be the nominal unheated entrance length of the fitting.
Figure 1 — Dimensions of electrofusion socket fittings
Table 1 — Dimensions of electrofusion socket fittings (see Figure 1)
Dimensions in millimetres
Nominal diameter Depth of penetration Fusion zone
a, b
d L L L
n 1,min 1,max 2,min
20 25 41 10
25 25 41 10
32 25 44 10
40 25 49 10
50 28 55 10
63 31 63 11
75 35
70 12
90 40 79 13
110 53 82 15
125 58 87 16
140 62 92 18
160 68 98 20
180 74 105 21
200 80 112 23
225 88 120 26
250 95 129 33
280 104
139 35
315 115 150
355 127 164 42
400 140 179 47
450 155 195 51
500 170 212 56
560 188 235 61
630 209 255 67
710 220 280 74
800 230 300 82
a
An extended L may be agreed between the end user and manufacturer. In this case compatibility of such
fittings is not given with components with a tubular length of spigots L2,min according to Table 3.
b
The values of L2 (electrofusion) are based on the following equations rounded to the next greater unit:
— for d ≤ 90, L = 0,6d + 25 mm;
n 2 n
— for d ≥ 110, L = d /3 + 45 mm
n 2 n
The mean inside diameter of the fitting in the middle of the fusion zone (see D in Figure 1) shall not be
l
less than dn.
In the case of a fitting having sockets of differing nominal diameters, each one shall conform to the
requirements for the nominal diameter of the corresponding component.
7.2.2 Wall thicknesses
In order to prevent stress concentrations, any changes in wall thickness of the fitting body shall be
gradual.
a) The wall thickness at any point of the fitting body, E, shall be greater than or equal to emin for the
corresponding pipe at any part of the fitting located at a distance beyond a maximum of 2/3 L from
all entrance faces if the fitting and the corresponding pipe are made from a polyethylene having the
same MRS.
If the fitting is produced from a polyethylene having an MRS that is different from that of the
corresponding pipe, the relationship between the wall thickness of the fitting, E, and the pipe, e ,
min
shall be in accordance with Table 2.
Table 2 — Relation between pipe and fitting wall thicknesses
Pipe and fitting material
Relationship
Pipe Fitting
PE 80 PE 100 or PE 100-RC E ≥ 0,8 e
min
PE 100 or PE 100-RC PE 80 E ≥ 1,25 e
min
b) In the case of a wall thickness design different from that according to a), fittings and associated fusion
joints shall additionally meet the performance requirements given in 8.3.
7.2.3 Out-of-roundness of the bore of a fitting (at any point)
When a fitting leaves the site of the manufacturer, the out-of-roundness of the bore of a fitting at any
point shall not exceed 0,015 d .
n
7.2.4 Spigots
For fittings, which contain spigot outlets (e.g. electrofusion equal tee with a spigot branch), the
dimensions of the spigot shall conform to 7.4.
For technical and design reasons, the shape of the minimum bore cross-section area can be different from
the one of spigot fittings as given in 7.4.
7.2.5 Other dimensions
The dimensional characteristics appropriate to each manufacturer such as the overall dimensions or
mounting dimensions shall be specified in a technical file.
In the case of a coupling without an internal stop or with a removable centre register, the geometry of the
fitting shall allow the penetration of the pipe through the fitting.
7.3 Dimensions of electrofusion saddle fittings
Outlets from tapping tees and branch saddles shall have spigots in accordance with 7.4 or an electrofusion
socket in accordance with 7.2. The manufacturer shall specify the overall characteristic dimension of the
fitting in the technical file. These dimensions shall include the main pipe and outlet dimensions, maximum
height of the saddle, H, and the height of the service pipe measured from the top of the main, H , as shown
in Figure 2.
For technical and design reasons the minimum bore diameter D may be different from the one of spigot
fittings as given in 7.4.
Key
H height of the saddle, which comprises the distance from the top of the main pipe to the top of the tapping
tee or saddle
H height of service pipe, which comprises the distance from the axis of the main pipe to the axis of the
service pipe
H2 height of service pipe, which comprises the distance from the top of the main pipe to the axis of the
service pipe
L width of the tapping tee, which comprises the distance between the axis of the main pipe and the plane of
the mouth of the service tee
Figure 2 — Dimensions of electrofusion saddle fittings
7.4 Dimensions of spigot end fittings
7.4.1 Diameters and lengths
The dimensions of spigot end fittings (see Figure 3) shall conform to the values given in Table 3.
Key
a
D mean outside diameter of fusion end piece
b
D2 bore comprising minimum diameter of the flow channel through the body of the fitting
c
E wall thickness at any point of the fitting body
d
E fusion face wall thickness
e
L1 cut-back length of fusion end piece
f
L2 tubular length of fusion end piece
a D1 is measured in any plane parallel to the plane of the entrance face at a distance not greater than L2
(tubular length) from the plane of the entrance face.
b The measurement of this diameter does not include the fusion bead (if present).
c See 7.4.3.
d It is measured at any point at a maximum distance of L (cut back length) from the entrance face and shall
be equal to the pipe wall thickness and tolerance to which it is intended to be butt fused, as specified in
EN 12201-2:2024, Table 2. E1 is at least 3 mm.
It comprises the initial depth of the spigot end necessary for butt fusion or reweld and can be obtained by
e
joining a length of pipe to the spigot end of the fitting provided that the wall thickness of the pipe is equal
to E1 for its entire length.
f It comprises the initial length of the fusion end piece and shall allow the following (in any combination):
the use of clamps required in the case of butt fusion; assembly with an electrofusion fitting; assembly with
a socket fusion fitting; the use of a mechanical scraper.
Figure 3 — Dimensions of spigot end fittings
Table 3 — Diameters and lengths of spigot end fittings
Dimensions in millimetres
c
Nominal Mean outside For electrofusion and butt fusion For For butt fusion only
outside diameter of the fusion socket
b
diameter end fusion
of spigot
Grade B Out-of- Minimum Cut Tubular Tubular Out-of- Cut Tubular
a
d e
roundness bore back length length roundness back length
length length
d D D max. D L L L max. L L
n 1,min 1,max 2 1,min 2,min 2,min 1,min 2,min
20 20,0 20,3 0,3 13 25 41 11 — — —
25 12,5
25,0 25,3 0,4 18 25 41 — — —
32 32,0 32,3 0,5 25 14,6 — — —
25 44
40 40,0 40,4 0,6 31 25 49 17 — — —
50 50,0 50,4 20 — —
0,8 39 25 55 —
63 63,0 63,4 0,9 49 25 24
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...