SIST EN 1254-3:2021/oprA1:2024
(Amendment)Copper and copper alloys - Plumbing fittings - Part 3: Compression fittings for use with plastics and multilayer pipes
Copper and copper alloys - Plumbing fittings - Part 3: Compression fittings for use with plastics and multilayer pipes
This document specifies product characteristics, assessment methods, compliance criteria of test results and a designation system for fittings with compression ends for use with plastics and multilayer pipes which are defined in the applicable pipe standard. For the purposes of joining plastics pipes, the fitting ends have a nominal diameter from 6 mm to 160 mm. The fittings are designed for a service lifetime up to fifty years.
The compression 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 for use with plastics and multilayer pipes may combine compression ends with fitting ends defined in the other parts of EN 1254.
Compression fittings for use with plastics and multilayer pipes may also have flanged end connections according to EN 1092-3.
Compression fittings for use with plastics and multilayer pipes 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:
a) 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.
b) gas applications (not valid for multilayer pipes):
- natural gas and liquefied petroleum gas systems with a maximum operating pressure less than or equal to 5 bar according to EN 1775;
- compressed air systems.
Kupfer und Kupferlegierungen - Fittings - Teil 3: Klemmverbinder für Kunststoffrohre und Mehrschichtverbundrohre
Cuivre et alliages de cuivre - Raccords - Partie 3 : Raccords à compression pour tubes en matières plastiques et multicouches
Baker in bakrove zlitine - Fitingi - 3. del: Fitingi z nakrčenima priključkoma za spajanje s plastičnimi in večplastnimi cevmi - Dopolnino A1
General Information
Relations
Overview
SIST EN 1254-3:2021/oprA1:2024 is the latest amendment to the European standard that governs copper and copper alloy plumbing fittings, specifically focusing on compression fittings for use with plastics and multilayer pipes. Developed by the CEN Technical Committee CEN/TC 133, this standard updates product characteristics, testing methods, and compliance criteria to enhance durability, safety, and compatibility of fittings used in plumbing systems.
The standard covers compression fittings with nominal diameters from 6 mm up to 160 mm, designed for a service life of up to fifty years. These fittings operate under defined temperature and pressure ranges aligned with Annex A of the standard. Applicable to copper alloy fittings common in plumbing, heating, cooling, drainage, fire protection, and certain gas systems, this document ensures reliable connections between copper alloy compression fittings and plastic or multilayer pipes according to relevant pipe standards.
Key Topics
- Product Characteristics: Specifies minimum wall thickness requirements for fitting bodies used with pipe systems under EN ISO standards (15874, 15875, 15876, 15877, 21003, 22391), excluding areas designed to deform for sealing.
- Assessment & Testing: Describes methods for evaluating compliance, including precise wall thickness measurements using gauges, callipers, or micrometers with high accuracy. This ensures structural integrity and leak-free performance.
- Compliance Criteria: Defines sampling methods and the number of samples to be tested per batch, requiring testing of at least three fittings per nominal diameter per production run to maintain product consistency.
- Design & Materials: Applies to fittings produced by machining, metal forming, casting, or fabrication using copper alloys listed in CEN/TS 13388, optionally featuring decorative surface coatings or flanged connections per EN 1092-3.
- Scope of Use: Covers liquid applications such as hot/cold water, heating systems, cooling circuits, drainage, and fire protection including sprinkler systems. It also encompasses gas applications like natural gas and LPG under 5 bar pressure, except multilayer pipes are excluded here.
Applications
SIST EN 1254-3:2021/oprA1:2024 compression fittings are essential for joining copper alloy fittings to plastic and multilayer pipes in various plumbing and industrial systems:
- Water Supply Systems: Suitable for hot and cold water installations compliant with EN 806, ensuring hygienic, secure connections.
- Heating Systems: Designed for closed-loop heating systems adhering to EN 12828 requirements, facilitating durable and high-pressure resistant joints.
- Cooling & Drainage: Supports coolants in HVAC and effective drainage in building services under standardized conditions.
- Fire Safety: Compatible with fire protection and sprinkler system regulations according to EN 12845, vital for safety-critical infrastructure.
- Gas & Compressed Air: Used in low-pressure natural gas and LPG installations, as well as compressed air systems, excluding multilayer pipe applications.
By meeting these standards, plumbing professionals ensure long-lasting, safe, and efficient connections in both residential and commercial settings.
Related Standards
- EN 1254-20:2021+A1 – Specifies detailed wall thickness requirements referenced in this amendment.
- EN ISO 15874 Series – Pertains to plastic piping systems for hot and cold water installations.
- EN ISO 15875, 15876, 15877, 21003, 22391 – Cover different types of plastic and multilayer piping systems compatible with the fittings.
- EN 12828 – Specifies standards for heating systems.
- EN 12845 – Governs fire sprinkler systems where these fittings may be used.
- EN 1092-3 – Defines requirements for flanged end connections that compression fittings may incorporate.
- EN 1775 – Applies to gas installations using natural gas and LPG under specified pressures.
- CEN/TS 13388 – Lists copper alloys applicable in these plumbing fittings.
Keywords: EN 1254-3:2021 amendment, copper alloy compression fittings, plumbing fittings standards, compression fittings plastics pipes, multilayer pipe fittings, copper plumbing fittings, water and gas pipe connections, fire protection fittings, compliant plumbing components, European plumbing standard.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2024
Baker in bakrove zlitine - Fitingi - 3. del: Fitingi z nakrčenima priključkoma za
spajanje s plastičnimi in večplastnimi cevmi - Dopolnino A1
Copper and copper alloys - Plumbing fittings - Part 3: Compression fittings for use with
plastics and multilayer pipes
Kupfer und Kupferlegierungen - Fittings - Teil 3: Klemmverbinder für Kunststoffrohre und
Mehrschichtverbundrohre
Cuivre et alliages de cuivre - Raccords - Partie 3 : Raccords à compression pour tubes
en matières plastiques et multicouches
Ta slovenski standard je istoveten z: EN 1254-3:2021/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 1254-3:2021
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
July 2024
ICS 23.040.40
English Version
Copper and copper alloys - Plumbing fittings - Part 3:
Compression fittings for use with plastics and multilayer
pipes
Cuivre et alliages de cuivre - Raccords - Partie 3 : Kupfer und Kupferlegierungen - Fittings - Teil 3:
Raccords à compression pour tubes en matières Klemmverbinder für Kunststoffrohre und
plastiques et multicouches Mehrschichtverbundrohre
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 1254-3:2021. 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 1254-3:2021/prA1:2024 E
worldwide for CEN national Members.
Contents Page
European foreword .
...
Frequently Asked Questions
SIST EN 1254-3:2021/oprA1:2024 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Copper and copper alloys - Plumbing fittings - Part 3: Compression fittings for use with plastics and multilayer pipes". This standard covers: This document specifies product characteristics, assessment methods, compliance criteria of test results and a designation system for fittings with compression ends for use with plastics and multilayer pipes which are defined in the applicable pipe standard. For the purposes of joining plastics pipes, the fitting ends have a nominal diameter from 6 mm to 160 mm. The fittings are designed for a service lifetime up to fifty years. The compression 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 for use with plastics and multilayer pipes may combine compression ends with fitting ends defined in the other parts of EN 1254. Compression fittings for use with plastics and multilayer pipes may also have flanged end connections according to EN 1092-3. Compression fittings for use with plastics and multilayer pipes 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: a) 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. b) gas applications (not valid for multilayer pipes): - natural gas and liquefied petroleum gas systems with a maximum operating pressure less than or equal to 5 bar according to EN 1775; - compressed air systems.
This document specifies product characteristics, assessment methods, compliance criteria of test results and a designation system for fittings with compression ends for use with plastics and multilayer pipes which are defined in the applicable pipe standard. For the purposes of joining plastics pipes, the fitting ends have a nominal diameter from 6 mm to 160 mm. The fittings are designed for a service lifetime up to fifty years. The compression 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 for use with plastics and multilayer pipes may combine compression ends with fitting ends defined in the other parts of EN 1254. Compression fittings for use with plastics and multilayer pipes may also have flanged end connections according to EN 1092-3. Compression fittings for use with plastics and multilayer pipes 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: a) 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. b) gas applications (not valid for multilayer pipes): - natural gas and liquefied petroleum gas systems with a maximum operating pressure less than or equal to 5 bar according to EN 1775; - compressed air systems.
SIST EN 1254-3:2021/oprA1:2024 is classified under the following ICS (International Classification for Standards) categories: 23.040.40 - Metal fittings; 77.150.30 - Copper products. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 1254-3:2021/oprA1:2024 has the following relationships with other standards: It is inter standard links to SIST EN 1254-3:2021+A1:2025, SIST EN 1254-3:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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