ISO 28921-1:2022
工业阀门低温用隔离阀第1部分:设计、制造和生产试验

Industrial valves — Isolating valves for low-temperature applications — Part 1: Design, manufacturing and production testing

标准号

ISO 28921-1:2022

发布

2022年

发布单位

国际标准化组织

当前最新

ISO 28921-1:2022

 

 

引用标准

ASME B16.34 ASME B31.3 EN 12516-1 EN 12516-2 EN 12516-4 EN 13480-2 EN 1515-1 ISO 10434 ISO 10497 ISO 10631 ISO 14313 ISO 15761 ISO 15848-1:2015 ISO 17292 ISO 28921-2 ISO 5208 ISO 5209

适用范围

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; 1000; 1050; 1200; 1350; 1400; 1500; 1600; 1650; 1800, — corresponding to nominal pipe sizes NPS: ⅜; 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; 1500; 2500. NOTE Not all type and size combination are available in all pressure ratings. This document does not apply to safety valves and control valves.

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