SR EN 1254-6:2021

This document specifies product characteristics, assessment methods, compliance criteria of test results and a designation system for push-fit fittings for the purpose of joining tubes of copper, plated copper, multilayer pipes and plastics pipes. The fitting ends have a nominal diameter from 6 mm to 54 mm. The fittings are designed for a service lifetime up to fifty years. This document is applicable to push-fit fittings for joining one or more of the following tubes or pipes: - copper tubes to EN 1057. The fittings are used up to the operating temperatures and corresponding maximum operating pressures as indicated in Annex A. This document applies to copper alloy fittings. A non-exhaustive list of these copper alloys is given in CEN/TS 13388. Adaptor fittings may combine push-fit ends with fitting ends defined in the other parts of EN 1254. Push-fit fittings for metallic tubes may also have flanged end connections according to EN 1092-3. Push-fit fittings may also have a plated or other decorative surface coating. Fittings can be produced by machining, metal forming, casting