BS EN ISO 28921-1:2022
工业阀门 适用于低温应用的隔热阀 设计、制造和生产测试
Industrial valves. Isolating valves for low-temperature applications. Design, manufacturing and production testing
- 标准号
- BS EN ISO 28921-1:2022
- 发布
- 2022年
- 发布单位
- 英国标准学会
- 当前最新
- BS EN 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
- 1 Scope 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 : 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,