SIST EN ISO 16486-3:2025
(Main)Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 3: Fittings (ISO 16486-3:2025)
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 3: Fittings (ISO 16486-3:2025)
This document specifies the physical and mechanical properties of fittings made from unplasticized polyamide (PA-U) in accordance with ISO 16486‑1, intended to be buried and used for the supply of gaseous fuels.
It also specifies the test parameters for the test methods to which it refers.
The ISO 16486 series is applicable to PA-U piping systems, the components of which are connected by fusion jointing and/or mechanical jointing.
In addition, it lays down dimensional characteristics and requirements for the marking of fittings.
In conjunction with the other parts of the ISO 16486 series, this document is applicable to PA-U fittings, their joints, joints with components of PA-U and joints with mechanical fittings of other materials, and to the following fitting types:
— fusion fittings (electrofusion fittings and butt fusion fittings), and
— transition fittings.
Kunststoff-Rohrleitungssysteme für die Gasversorgung - Rohrleitungssysteme aus weichmacherfreiem Polyamid (PA-U) mit Schweißverbindungen und mechanischen Verbindungen - Teil 3: Formstücke (ISO 16486-3:2025)
Dieses Dokument legt die physikalischen und mechanischen Eigenschaften von Formstücken fest, die nach ISO 16486 1 aus weichmacherfreiem Polyamid (PA-U) hergestellt und dafür vorgesehen sind, unterirdisch verlegt und für die Gasversorgung verwendet zu werden.
Es legt auch die Prüfparameter für die Prüfverfahren fest, auf die es sich bezieht.
Die Normenreihe ISO 16486 ist anwendbar für PA-U-Rohrleitungssysteme, deren Komponenten durch Schweißverbindungen und/oder mechanische Verbindungen zusammengefügt werden.
Insbesondere legt dieses Dokument Maßeigenschaften und Anforderungen an die Kennzeichnung von Formstücken fest.
Zusammen mit den anderen Teilen der Normenreihe ISO 16486 gilt dieses Dokument für PA-U-Formstücke, deren Verbindungen, Verbindungen mit Komponenten aus PA-U und Verbindungen mit mechanischen Formstücken aus anderen Werkstoffen sowie für die folgenden Arten von Formstücken:
- Schweißformstücke (Heizwendelschweiß- und Stumpfschweiß-Formstücke); und
- Übergangsformstücke.
Systèmes de canalisations en matières plastiques pour la distribution de combustibles gazeux - Systèmes de canalisations en polyamide non plastifié (PA-U) avec assemblages par soudage et assemblages mécaniques - Partie 3: Raccords (ISO 16486-3:2025)
Le présent document spécifie les propriétés physiques et mécaniques des raccords en polyamide non plastifié (PA‑U) conformément à l'ISO 16486‑1, destinés à être enterrés et utilisés pour la distribution de combustibles gazeux.
Il spécifie également les paramètres d'essai pour les méthodes d'essai auxquelles il fait référence.
La série ISO 16486 s'applique aux systèmes de canalisations en PA‑U dont les composants sont raccordés par des assemblages par soudage et/ou par des assemblages mécaniques.
De plus, elle définit les caractéristiques dimensionnelles et les exigences pour le marquage des raccords.
En conjonction avec les autres parties de la série ISO 16486, le présent document s'applique aux raccords en PA‑U, à leurs assemblages, aux assemblages avec des composants en PA‑U, aux assemblages avec des raccords mécaniques fabriqués en autres matières, ainsi qu'avec les types de raccords suivants:
— les raccords soudables (raccords électrosoudables et raccords par soudage bout à bout), et
— les raccords de transition.
Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Cevni sistemi iz nemehčanega poliamida (PA-U) z zvari in mehanskimi spoji - 3. del: Fitingi (ISO 16486-3:2025)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Cevni sistemi
iz nemehčanega poliamida (PA-U) z zvari in mehanskimi spoji - 3. del: Fitingi (ISO
16486-3:2025)
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U)
piping systems with fusion jointing and mechanical jointing - Part 3: Fittings (ISO 16486-
3:2025)
Kunststoff-Rohrleitungssysteme für die Gasversorgung - Rohrleitungssysteme aus
weichmacherfreiem Polyamid (PA-U) mit Schweißverbindungen und mechanischen
Verbindungen - Teil 3: Formstücke (ISO 16486-3:2025)
Systèmes de canalisations en matières plastiques pour la distribution de combustibles
gazeux - Systèmes de canalisations en polyamide non plastifié (PA-U) avec
assemblages par soudage et assemblages mécaniques - Partie 3: Raccords (ISO 16486
-3:2025)
Ta slovenski standard je istoveten z: EN ISO 16486-3:2025
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
83.140.30 Polimerne cevi in fitingi za Plastics pipes and fittings for
snovi, ki niso tekočine non fluid use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 16486-3
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2025
EUROPÄISCHE NORM
ICS 75.200; 83.140.30 Supersedes EN ISO 16486-3:2020
English Version
Plastics piping systems for the supply of gaseous fuels -
Unplasticized polyamide (PA-U) piping systems with
fusion jointing and mechanical jointing - Part 3: Fittings
(ISO 16486-3:2025)
Systèmes de canalisations en matières plastiques pour Kunststoff-Rohrleitungssysteme für die Gasversorgung
la distribution de combustibles gazeux - Systèmes de - Rohrleitungssysteme aus weichmacherfreiem
canalisations en polyamide non plastifié (PA-U) avec Polyamid (PA-U) mit Schweißverbindungen und
assemblages par soudage et assemblages mécaniques - mechanischen Verbindungen - Teil 3: Formstücke (ISO
Partie 3: Raccords (ISO 16486-3:2025) 16486-3:2025)
This European Standard was approved by CEN on 21 December 2024.
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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16486-3:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 16486-3:2025) has been prepared by Technical Committee ISO/TC 138
"Plastics pipes, fittings and valves for the transport of fluids" in collaboration with 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 2025, and conflicting national standards shall be
withdrawn at the latest by July 2025.
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 ISO 16486-3:2020.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 16486-3:2025 has been approved by CEN as EN ISO 16486-3:2025 without any
modification.
International
Standard
ISO 16486-3
Third edition
Plastics piping systems for
2025-01
the supply of gaseous fuels —
Unplasticized polyamide (PA-U)
piping systems with fusion jointing
and mechanical jointing —
Part 3:
Fittings
Systèmes de canalisations en matières plastiques pour la
distribution de combustibles gazeux — Systèmes de canalisations
en polyamide non plastifié (PA-U) avec assemblages par soudage
et assemblages mécaniques —
Partie 3: Raccords
Reference number
ISO 16486-3:2025(en) © ISO 2025
ISO 16486-3:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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Published in Switzerland
ii
ISO 16486-3:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Material. 3
4.1 PA-U compound .3
4.2 Material for non-unplasticized polyamide parts .3
4.2.1 General .3
4.2.2 Metal parts .3
4.2.3 Elastomers .3
4.2.4 Other materials .4
5 General characteristics . 4
5.1 Appearance .4
5.2 Design .4
5.3 Colour .4
5.4 Electrical characteristics for electrofusion fittings .4
5.5 Appearance of factory-made fusion joints .4
5.6 Fusion compatibility .5
5.7 Appearance of transition fittings.5
6 Geometrical characteristics . 5
6.1 Measurement of dimensions .5
6.2 Dimensions of electrofusion sockets .5
6.2.1 Diameters and lengths of electrofusion sockets .5
6.2.2 Wall thickness .5
6.3 Dimensions of spigot end fittings .7
6.4 Dimensions of tapping tees .9
6.5 Dimensions of transition fittings to other materials .9
7 Mechanical characteristics . 9
7.1 General .9
7.2 Conditioning.10
7.3 Mechanical requirements .10
7.4 Additional requirements for transition fittings . 12
8 Physical characteristics .12
8.1 Conditioning. 12
8.2 Requirements . 12
9 Chemical resistance of fittings in contact with chemical
...
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