Plastics piping systems for water supply, and for drains and sewers under pressure. Polyethylene (PE) - Fittings

Plastics piping systems for water supply, and for drains and sewers under pressure. Polyethylene (PE) - Fittings

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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:
  1. a) allowable operating pressure, PFA, up to 25 bar 1 ;
  2. 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).