prEN 1254-4 rev

Copper and copper alloys - Plumbing fittings - Part 4: Threaded fittings

Scope

This European Standard specifies requirements, assessment methods, compliance criteria and a designation system for threaded fittings. These threaded ends exist with metallic and with non-metallic sealing elements for the purposes of joining with tubes, pipes, fittings or valves, the threaded ends have a size range from 3,175 mm (1/8”) to 101,6 mm (4”). The threaded fittings are designed for a service lifetime up to fifty years.
This European Standard applies to fittings made of materials listed in CEN/TS 13388.
Threaded fittings may also have flanged end connections according to EN 1092-3.
Threaded fittings may also have a plated or other decorative surface coating.
Products covered by this standard are intended to be used in:
a) liquid applications:
 hot or cold or combined hot and cold water systems;
 heating and cooling systems;
 drainage systems;
 sprinkler systems.
b) gas applications:
 natural gas and liquefied petroleum gas systems with a maximum operating pressure less than or equal to 5 bar;
 compressed air.
Operating temperatures and pressures for assembled joints shall not exceed the values in Annex A.

Related legislation

Legislation related to this standard