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  • BSI
    BS EN 1254-20:2021 Copper and copper alloys. Plumbing fittings - Definitions, thread dimensions, test methods, reference data and supporting information
    Edition: 2021
    $526.05
    / user per year

Description of BS EN 1254-20:2021 2021

This document contains definitions, thread dimension, reference data (minimum bore), supporting information (assembling instructions) and describes the test methods referenced by other parts of the EN 1254 series.

Thread dimensions comprise: wall thickness at threaded portions of fittings, dimensions of tail pipe ends for swivel fittings, dimensions of gas union connectors, thread dimensions and thread profile.

Test methods comprise: leak tightness under internal hydrostatic pressure, leak tightness under internal pneumatic pressure, integrity of fabricated fitting bodies or having an 'as cast' microstructure, resistance to pull out of joints to metallic tubes, resistance of joints with metallic tube to vibration, resistance of joints to static flexural force, leak tightness of joints under vacuum, the resistance of joints to temperature cycling, detecting non-pressed fitting ends, resistance to stress corrosion, detection of a carbon film on the surface of copper fittings, determination of mean depth of dezincification, resistance of joints to pressure cycling, disconnection and re-use, determining if the diameter and/or the length of engagement of a capillary end is/are within the specified tolerance, determining the minimum length of engagement of an integral solder or brazing ring socket having a formed groove.



Standard NumberBS EN 1254-20:2021
TitleCopper and copper alloys. Plumbing fittings - Definitions, thread dimensions, test methods, reference data and supporting information
StatusUnder Review
Publication Date2021-06-03
Identical National Standard OfEN 1254-20:2021
DescriptorsCopper, Alloys, Non-ferrous alloys, Copper alloys, Definitions, Test methods, Dimensions
ICS23.040.40 Metal fittings
CommitteeNFE/34
ISBN978 0 539 03349 6
PublisherBSI
Pages68

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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