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BSI 21/30402416 DC:2021 Edition

BSI 21/30402416 DC:2021 Edition

$13.70

BS EN ISO 28921-1. Industrial valves. Isolating valves for low-temperature applications – Part 1. Design, manufacturing and production testing

Published By Publication Date Number of Pages
BSI 2021 33
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This document specifies requirements for design, dimensions, material, fabrication and production testing of gate, globe, ball/plug and butterfly valve design types used as isolation valves and check valves for low-temperature applications.

This document covers isolation valves for use in low and cryogenic temperature service where the design low-temperature service is -50 °C down to –196 °C.

This document does not apply to valves for cryogenic services, designed in accordance with ISO 21011, used with cryogenic vessels.

Where the requirements of this document vary from those given in the valve product standards, the requirements of this document apply.

This document covers valves with body, bonnet, bonnet extension or cover made of metallic materials.

It covers valves of nominal sizes DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900; 950; 1 000; 1 050; 1 200; 1 350; 1 400; 1 500; 1 600; 1 650; 1 800.

corresponding to nominal pipe sizes NPS: 3/8; 1/2; 3/4; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36; 38; 40; 42; 48; 54; 56; 60; 64; 66; 72,

and applies to pressure designations:

  1. PN 16; 25; 40; 100; 160; 250; 400;

  2. Class 150; 300; 600; 800; 900; 1 500; 2 500.

NOTE

Not all type and size combination are available in all pressure ratings.

This document excludes testing for safety valves and control valves.

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BSI 21/30402416 DC
$13.70