🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 1254-7:2021

BS EN 1254-7:2021

$127.42

Copper and copper alloys. Plumbing fittings – Press fittings for use with metallic tubes

Published By Publication Date Number of Pages
BSI 2021 32
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document specifies product characteristics, assessment methods, compliance criteria of test results and a designation system for press fittings including their elastomeric seals, for connecting with metallic tubes. The fitting ends have a nominal diameter from 6 mm to 108 mm. The press fittings are designed for a service lifetime up to fifty years. This document is applicable to press fittings for joining one or more of the following tubes: – copper tubes to EN 1057; and – stainless steel tubes to EN 10312; with wall thicknesses and tempers as specified by the manufacturer. The fittings are used up to the operating temperatures and maximum operating pressures as indicated in Annex A. Press fittings are used with tubes with wall thicknesses greater than or equal to the wall thickness given in Annex B, to ensure that tubes can withstand the radial pressing forces involved. 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 copper tubes may combine press ends with fitting ends defined in the other parts of EN 1254. Press fittings for use with metallic tubes may also have flanged end connections according to EN 1092-3. Press fittings for use with metallic tubes 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 or 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; – supply systems for points of consumption with liquid fuels according to EN 12514. b) gas applications: – 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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 European foreword
7 Introduction
8 1 Scope
2 Normative references
9 3 Terms and definitions
4 Product characteristics
4.1 Internal pressure
4.1.1 For liquid applications
10 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
4.2.2 Requirements for liquid applications
4.2.3 Requirements for gas applications
11 4.3 Resistance to high temperature (for heating networks)
12 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
4.5.3 Durability of resistance to high temperature (for heating networks)
13 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 1254‑20:2021)
4.11 Bore dimensions
4.12 Identity of elastomeric sealing material for liquid applications
14 4.13 Identity of elastomeric sealing material for gas applications
4.14 Tube abutment
4.15 Alignment of the fitting ends
4.16 Shapes for tightening systems
4.17 Surface condition
4.18 Plated or coated surfaces
5 Testing, assessment and sampling methods
5.1 General
5.1.1 Preparation of fittings for testing
15 5.1.2 Test temperature
5.1.3 Tolerances
5.2 Internal pressure
5.2.1 Internal hydrostatic pressure test
5.2.2 Internal pneumatic pressure test for fuel gas applications
5.2.3 Internal pneumatic pressure tests for compressed air applications
16 5.3 Tightness
5.3.1 Integrity of fabricated fitting bodies or having an ‘as cast’ microstructure
5.3.2 Tests for liquid applications
17 5.3.3 Tests for gas applications
18 5.4 Durability
5.4.1 Durability of internal pressure: Resistance to stress corrosion
5.4.2 Durability of tightness
5.4.3 Durability of resistance to high temperature (for heating networks)
19 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
5.7.2 FPC testing
5.8 Threaded end dimensions
5.9 Bore dimensions
20 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
21 6.2.2 Test samples, testing and compliance criteria
24 6.2.3 Test reports
6.3 Factory production control (FPC)
6.3.1 General
6.3.2 Equipment
25 6.3.3 Raw materials and components
6.3.4 Product testing and evaluation
26 7 Designation
8 Marking, labelling and packaging
8.1 General
8.2 Additional marking
27 8.3 Dezincification resistant copper zinc alloys
28 Annex A (normative) Maximum operating temperatures and corresponding maximum operating pressures
29 Annex B (normative) Minimum nominal wall thicknesses of copper tube with R220, R250 and R290 temper conforming to EN 1057 suitable for jointing by press fittings
31 Bibliography

Related products

BS EN 1254-7:2021
$127.42