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BS EN 1254-6:2021

BS EN 1254-6:2021

$142.49

Copper and copper alloys. Plumbing fittings – Push-fit fittings for use with metallic tubes, plastics and multilayer pipes

Published By Publication Date Number of Pages
BSI 2021 30
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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:

  1. 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:

  1. hot, cold or combined hot and cold water, including systems according to EN 806 ;

  2. closed heating systems according to EN 12828 ;

  3. cooling systems;

  4. drainage systems;

  5. fire protection systems including sprinkler systems according to EN 12845 .

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 European foreword
7 Introduction
8 1 Scope
2 Normative references
10 3 Terms and definitions
4 Product characteristics
4.1 Internal pressure
4.2 Tightness
4.2.1 Integrity of fabricated fitting bodies or having an ‘as cast’ microstructure
4.2.2 Leak tightness under internal hydrostatic pressure
4.2.3 Resistance to pull-out
4.2.4 Leak tightness under vibration
4.2.5 Leak tightness under static flexural force
11 4.2.6 Leak tightness under internal hydrostatic pressure while subject to bending
4.2.7 Leak tightness under vacuum.
4.2.8 Leak tightness under temperature cycling
4.3 Resistance to high temperature (for heating networks)
4.4 Release of dangerous substances
4.5 Durability
4.5.1 Durability of internal pressure: Resistance to stress corrosion
12 4.5.2 Durability of tightness
4.5.3 Durability of resistance to high temperature (for heating networks)
4.6 Wall thickness at threaded portions of adaptor fittings
4.7 Dimensions of tail pipe ends for swivel fittings
4.8 Threaded end dimensions
4.9 Other adapter ends (not defined in EN 1254‑20:2021)
13 4.10 Bore dimensions
4.11 Identity of elastomeric sealing material
4.12 Tube / pipe abutment
4.13 Alignment of the fitting ends
4.14 Shapes for tightening systems
4.15 Surface condition
4.16 Disconnection and re-use (for fittings capable of being disconnected)
14 4.17 Plated or coated surfaces
5 Testing, assessment and sampling methods
5.1 General
5.1.1 Preparation of fittings for testing
5.1.2 Test temperature
5.1.3 Tolerances
5.2 Internal hydrostatic pressure test
15 5.3 Tightness
5.3.1 Integrity of fabricated fitting bodies or having an ‘as cast’ microstructure
5.3.2 Resistance to pull-out
16 5.3.3 Leak tightness under vibration (metallic tube only)
5.3.4 Leak tightness under static flexural force (metallic tube only)
5.3.5 Leak tightness under internal hydrostatic pressure while subjected to bending (plastics pipe only)
17 5.3.6 Leak tightness under vacuum
5.3.7 Leak tightness under temperature cycling
18 5.4 Durability
5.4.1 Durability of internal pressure: Resistance to stress corrosion
5.4.2 Durability of tightness
19 5.4.3 Durability of resistance to high temperature (for heating networks)
5.5 Wall thickness at threaded portions of adaptor fittings
5.5.1 Type testing
5.5.2 FPC testing
5.6 Dimensions of tail pipe ends for swivel fittings
5.7 Threaded end dimensions
20 5.8 Bore dimensions
5.9 Identity of elastomeric sealing material for liquid applications
5.10 Alignment of the fitting ends
5.11 Disconnection and re-use (for fittings capable of being disconnected)
21 6 Evaluation of conformity
6.1 General
6.2 Type testing
6.2.1 General
6.2.2 Test samples, testing and compliance criteria
23 6.3 Test reports
6.4 Factory production control (FPC)
6.4.1 General
6.4.2 Equipment
24 6.4.3 Raw materials and components
6.4.4 Product testing and evaluation
7 Designation
25 8 Marking, labelling and packaging
8.1 General
8.2 Dezincification resistant copper zinc alloys
26 Annex A (normative) Operating temperatures and design pressures
28 Bibliography

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BS EN 1254-6:2021
$142.49