19/30397146 DC - BS EN 1555-3. Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE). Part 3. Fittings

19/30397146 DC

BS EN 1555-3. Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE). Part 3. Fittings

Status : Current, Draft for public comment   Published : October 2019



This document specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of mechanical fittings for piping systems in the field of the supply of gaseous fuels.

It also specifies the test parameters for the test methods referred to in this document.

In conjunction with Parts 1, 2, 4 and 5 of EN 1555, it is applicable to PE fittings, their joints and to joints with components of PE and other materials intended to be used under the following conditions:

  1. a maximum operating pressure, MOP, up to and including 10 bar 1;

    NOTE 1

    For the purpose of this document and referring to ISO 17885, MOP can be considered to be nominal pressure.

  2. an operating temperature of 20 °C as reference temperature.


For other operating temperatures, derating coefficients can be used; see EN 1555-5.

EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours and additives.


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 is applicable for fittings of the following types:

  1. electrofusion fittings;

  2. spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);

  3. mechanical compression fittings.


The fittings can be, for example, in the form of couplers, equal and reduced tees, reducers, bends or caps.

Standard Number19/30397146 DC
TitleBS EN 1555-3. Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE). Part 3. Fittings
StatusCurrent, Draft for public comment
Publication Date10 October 2019
Normative References(Required to achieve compliance to this standard)EN 682, EN 10226-2, prEN 1555-5:2019, EN ISO 1133-1, ISO 13956, EN ISO 1167-4, EN 10226-1, EN 1716, ISO 13951, ISO 17778, EN ISO 11357-6, ISO 13950, ISO 13953, ISO 13955, EN ISO 228-1, ISO 13954, EN ISO 3126, prEN 1555-1:2019, EN ISO 1167-1, prEN 1555-2:2019, ISO 17885:2015
Informative References(Provided for Information)EN ISO 1167-2, IEC 60529, HD 193 S2, EN 60335-1, CEN/TR 15438, prEN 1555-4:2019, CEN/TS 1555-7, ISO 11922-1, HD 60364-1, ISO 12176-5, EN 12007-2:2012
International RelationshipsFprEN 1555-3
Draft Expiry Date03 December 2019
DescriptorsGaseous fuels, Electrical heating elements, Colour, Plastics, Polyethylene, Dimensions, Pipe fittings, Pipework systems, Welded fittings, Gas pipelines, Fusion welding, Spigot-and-socket joints, Gas-pipe fittings, Thermoplastic polymers, Saddle joints, Butt joints, Testing conditions, Plastic pipelines, Pipe couplings, Pipelines
Title in FrenchSystèmes de canalisations en plastique pour la distribution de combustibles gazeux - Polyéthylène (PE) Partie 3:Raccords
Title in GermanKunststoff-Rohrleitungssysteme für die Gasversorgung - Polyethylen (PE) Teil 3: Formstücke
File Size1.164 MB
NotesWarning: this draft is not current beyond its expiry date for comments.

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