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BSI BS EN ISO 28921-1:2022

Industrial valves. Isolating valves for low-temperature applications -- Design, manufacturing and production testing
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BSI BS EN ISO 28921-1:2022

Industrial valves. Isolating valves for low-temperature applications -- Design, manufacturing and production testing

PUBLISH DATE 2022
PAGES 36
BSI BS EN ISO 28921-1:2022
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 is applicable to 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 is applicable to valves with body, bonnet, bonnet extension or cover made of metallic materials. This document is applicable to: —    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: ?; ½; ¾; 1; 1 ¼; 1 ½; 2; 2 ½; 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: —    PN 16; 25; 40; 100; 160; 250; 400, —    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 does not apply to safety valves and control valves.
SDO BSI: British Standards Institution
Document Number ISO 28921-1
Publication Date July 21, 2022
Language en - English
Page Count 36
Revision Level
Supercedes
Committee PSE/18/1
Publish Date Document Id Type View
July 21, 2022 BS EN ISO 28921-1:2022 Revision
May 31, 2013 BS EN ISO 28921-1:2013 Revision
May 31, 2013 BS ISO 28921-1:2013 Revision
March 31, 2017 BS EN ISO 28921-1:2017 Consolidated