EN 1254-6:2021/prA1

Copper and copper alloys - Plumbing fittings - Part 6: Push-fit fittings for use with metallic tubes, plastics and multilayer pipes

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, or fabrication.
Products covered by this document are intended to be used in liquid applications:
- hot, cold or combined hot and cold water, including systems according to EN 806;
- closed heating systems according to EN 12828;
- cooling systems;
- drainage systems;
- fire protection systems including sprinkler systems according to EN 12845.

Kupfer und Kupferlegierungen - Fittings - Teil 6: Einsteckfittings für den Einsatz mit Metall-, Kunststoff- und Mehrschichtverbundrohren

Cuivre et alliages de cuivre - Raccords - Partie 6 : Raccords instantanés pour tubes métalliques, en matières plastiques et multicouches

Baker in bakrove zlitine - Fitingi - 6. del: Fitingi s priključki "push-fit" za spajanje s kovinskimi, plastičnimi in večplastnimi cevmi - Dopolnino A1

General Information

• Status: Not Published
• Publication Date: 21-Jul-2026
• ICS: 23.040.40 - Metal fittings
• Technical Committee: CEN/TC 133 - Copper and copper alloys
• Drafting Committee: CEN/TC 133/WG 8 - Fittings
• Current Stage: 4097 - End of interruption of work - split/merged
• Start Date: 21-Nov-2024
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 1254-6:2021/oprA1:2024 - Copper and copper alloys - Plumbing fittings - Part 6: Push-fit fittings for use with metallic tubes, plastics and multilayer pipes

Relations

• Merged Into: EN 1254-6:2021+A1:2025 - Copper and copper alloys - Plumbing fittings - Part 6: Push-fit fittings for use with metallic tubes, plastics and multilayer pipes
• Effective Date: 27-Nov-2024
• Amends: EN 1254-6:2021 - Copper and copper alloys - Plumbing fittings - Part 6: Push-fit fittings for use with metallic tubes, plastics and multilayer pipes
• Effective Date: 17-Apr-2024

Overview

EN 1254-6:2021/prA1 (CEN draft amendment) covers push-fit plumbing fittings made from copper and copper alloys for joining metallic tubes, plastics and multilayer pipes. The amendment extends the original Part 6 scope (nominal diameters previously to 54 mm) to include fittings from 6 mm to 63 mm and confirms a designed service lifetime up to 50 years. It sets product characteristics, assessment methods, compliance criteria and a designation system for push-fit fittings intended for liquid applications (domestic water, heating, cooling, drainage and fire protection).

Key topics and requirements

• Scope expansion: Applicable to copper tubes (EN 1057), plastics and multilayer pipes; operating temperatures and maximum pressures are defined in Annex A.
• Materials: Applies to copper alloy fittings; a non-exhaustive alloy list is referenced in CEN/TS 13388.
• Manufacture: Fittings may be made by machining, metal forming, casting or fabrication and can include plated or decorative coatings.
• Connections: Adaptor fittings may combine push-fit ends with other EN 1254 ends; metallic push-fit fittings may include flanged ends (EN 1092-3).
• Wall thickness requirement: New Clause 4.18 requires minimum wall thickness for copper alloy fittings used in systems covered by specified EN ISO series (EN ISO 15874, 15875, 15876, 15877, 21003, 22391). Thickness values are referenced to EN 1254-20:2021+A1, Clause 22. Exemptions include cone angles, deformable loose rings/sleeves and supporting sleeves.
• Measurement and sampling: Wall thickness is measured using a gauge, calliper or micrometer; instrument accuracy must be one decimal place finer than the referenced value. Sampling requires three fittings of different pattern per nominal diameter and at least the first three fittings per production run subject to the thickness test.

Applications

• Plumbing and sanitary systems (hot, cold or combined water, including EN 806 systems)
• Closed heating systems (EN 12828) and cooling circuits
• Drainage installations
• Fire protection and sprinkler systems (EN 12845)
  Push-fit fittings specified by EN 1254-6:2021/prA1 are suitable for specifiers, manufacturers and installers requiring rapid, reliable, long-life mechanical connections without soldering or specialized tools.

Who uses this standard

• Manufacturers and product developers of push-fit fittings and copper alloy plumbing components
• Compliance and quality engineers for product certification and factory production control
• Testing laboratories and accreditation bodies performing dimensional and mechanical assessments
• Plumbers, HVAC designers, MEP engineers and fire protection specialists specifying components for building services

Related standards

• EN 1254-6:2021 (base standard) and EN 1254-20 (thickness values)
• EN 1057 (copper tubes)
• EN 1092-3 (flanged connections)
• EN 806, EN 12828, EN 12845 (system applications)
• EN ISO 15874 / 15875 / 15876 / 15877 / 21003 / 22391 (pipe system standards)
• CEN/TS 13388 (copper alloy list)

Keywords: EN 1254-6:2021/prA1, push-fit fittings, copper fittings, plumbing fittings, multilayer pipes, plastic pipes, copper alloys, EN standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2024
Baker in bakrove zlitine - Fitingi - 6. del: Fitingi s priključki "push-fit" za spajanje s
kovinskimi, plastičnimi in večplastnimi cevmi - Dopolnino A1
Copper and copper alloys - Plumbing fittings - Part 6: Push-fit fittings for use with metallic
tubes, plastics and multilayer pipes
Kupfer und Kupferlegierungen - Fittings - Teil 6: Einsteckfittings für den Einsatz mit
Metall-, Kunststoff- und Mehrschichtverbundrohren
Cuivre et alliages de cuivre - Raccords - Partie 6 : Raccords instantanés pour tubes
métalliques, en matières plastiques et multicouches
Ta slovenski standard je istoveten z: EN 1254-6:2021/prA1
ICS:
23.040.40 Kovinski fitingi Metal fittings
77.150.30 Bakreni izdelki Copper products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 1254-6:2021
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
July 2024
ICS 23.040.40
English Version
Copper and copper alloys - Plumbing fittings - Part 6:
Push-fit fittings for use with metallic tubes, plastics and
multilayer pipes
Cuivre et alliages de cuivre - Raccords - Partie 6 : Kupfer und Kupferlegierungen - Fittings - Teil 6:
Raccords instantanés pour tubes métalliques, en Einsteckfittings für den Einsatz mit Metall-, Kunststoff-
matières plastiques et multicouches und Mehrschichtverbundrohren
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 133.

This draft amendment A1, if approved, will modify the European Standard EN 1254-6:2021. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1254-6:2021/prA1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modification to Clause 1 “Scope” . 4
2 Modification to Clause 4 “Product characteristics” . 4
3 Modification to Clause 5 “Testing, assessment and sampling methods” . 5
4 Modification to Clause 6 “Evaluation of conformity” . 5
...