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  • BSI
    21/30432487 DC BS EN 12201-4. Plastics piping systems for water supply, and for drainage and sewerage under pressure. Polyethylene (PE) - Part 4. Valves for water supply systems
    Edition: 2021
    $42.22
    / user per year

Description of 21/30432487 DC 2021

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, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes.

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 prEN 12201‑2 and prEN 12201‑3 respectively.

Valves made from materials other than PE, designed for the supply of water, drainage and sewerage under pressure 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, including integrated material transition joints, conforming to prEN 12201‑3.

NOTE 1

For valves or valve bodies intended for drainage and sewerage under pressure, additional specifications/tests could be necessary according to the requirements of the purchaser, especially for the chemical resistance of the components in contact with the fluids and functioning characteristics.

NOTE 2

For PE components intended for the conveyance of water for human consumption and raw water prior to treatment attention is drawn to 5.4. Components manufactured for water for other purposes are possibly not suitable for water supply for human consumption.

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

NOTE 3

Valves made from material other than polyethylene (PE) designed for the supply of water intended for human consumption to a relevant standard(s) can be used in PE piping systems conforming to EN 12201 when they have relevant PE connection for butt fusion or electrofusion ends (see prEN 12201‑3:2021).

In conjunction with Parts 1, 2, 3 and 5 of EN 12201 it is applicable to PE valves, their joints and to joints with components of PE and other materials intended to be used under the following conditions:

  1. allowable operating pressure, PFA, up to 25 bar1)

    1

    ) 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

    ;

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

  3. buried in the ground;

  4. sea outfalls;

  5. laid in water;

  6. above ground, including pipes suspended below bridges.

NOTE 4

For applications operating at constant temperature greater than 20 °C and up to 40 °C, see prEN 12201‑1:2021, Annex A.

EN 12201 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 Part of EN 12201 covers valves for pipes with a nominal outside diameter dn ≤ 400 mm.



Standard Number21/30432487 DC
TitleBS EN 12201-4. Plastics piping systems for water supply, and for drainage and sewerage under pressure. Polyethylene (PE) - Part 4. Valves for water supply systems
StatusDefinitive
Publication Date2021-04-08
Identical National Standard OfprEN 12201-4
DescriptorsPlastics, Piping systems, Water supply, Drainage, Sewerage, Pressure, Polyethylene, Valves
ICS23.040.20 Plastics pipes, 23.060.01 Valves in general
CommitteePRI/88
PublisherBSI
Pages28

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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