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BS EN 1254-8:2021

BS EN 1254-8:2021

$142.49

Copper and copper alloys. Plumbing fittings – Press fittings for use with plastics and multilayer pipes

Published By Publication Date Number of Pages
BSI 2021 32
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This document specifies product characteristics, assessment methods, compliance criteria of test results and a designation system for fittings with radial and axial press ends for use with plastics and multilayer pipes. The fitting ends have a nominal diameter from 10 mm to 160 mm. The fittings are designed for a service lifetime up to fifty.

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 press ends with fitting ends defined in the other parts of EN 1254.

Press fittings for use with plastics and multilayer pipes may also have flanged end connections according to EN 1092?3.

Press 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:

  1. 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 ;

    6. supply systems for points of consumption with liquid fuels according to EN 12514 .

  2. gas applications:

    1. natural gas and liquefied petroleum gas systems with a maximum operating pressure less than or equal to 5 bar according to EN 1775 ;

    2. compressed air systems.

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
4.1.1 For liquid applications
4.1.2 For fuel gas applications
4.1.3 For compressed air applications
4.2 Tightness
4.2.1 Integrity of fabricated fitting bodies or having an ‘as cast’ microstructure
11 4.2.2 Requirements for liquid applications
4.2.3 Requirements for gas applications
12 4.3 Resistance to high temperature for fittings with elastomeric seals (for heating networks)
4.4 Release of dangerous substances
4.5 Durability
4.5.1 Durability of internal pressure: Resistance to stress corrosion
4.5.2 Durability of tightness
13 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 Dimensions of gas union connectors
4.9 Threaded end dimensions
4.10 Other adapter ends (not defined in EN 1254ā€‘20:2021)
14 4.11 Bore dimensions
4.12 Identity of elastomeric sealing material for liquid applications
4.13 Identity of elastomeric sealing material for gas applications
4.14 Pipe abutment
4.15 Alignment of the fitting ends
4.16 Shapes for tightening systems
15 4.17 Surface condition
4.18 Plated or coated surfaces
4.19 Internal support
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 pressure
5.2.1 Internal hydrostatic pressure test
16 5.2.2 Internal pneumatic pressure test for fuel gas applications
5.2.3 Internal pneumatic pressure test for compressed air applications
17 5.3 Tightness
5.3.1 General tests
5.3.2 Tests for liquid applications
19 5.3.3 Tests for gas applications
5.4 Durability
5.4.1 Durability of internal pressure: Resistance to stress corrosion
5.4.2 Durability of tightness
20 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 Dimensions of gas union connectors
5.7.1 Type testing
21 5.7.2 FPC testing
5.8 Threaded end dimensions
5.9 Bore dimensions
5.10 Identity of elastomeric sealing material for liquid applications
5.11 Identity of elastomeric sealing material for gas applications
5.12 Alignment of the fitting ends
6 Evaluation of conformity
6.1 General
6.2 Type testing
6.2.1 General
22 6.2.2 Test samples, testing and compliance criteria
25 6.2.3 Test reports
6.3 Factory production control (FPC)
6.3.1 General
26 6.3.2 Equipment
6.3.3 Raw materials and components
6.3.4 Product testing and evaluation
27 7 Designation
28 8 Marking, labelling and packaging
8.1 General
8.2 Additional marking
8.3 Dezincification resistant copper zinc alloys
29 Bibliography

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BS EN 1254-8:2021
$142.49