{"id":372338,"date":"2024-10-20T02:28:49","date_gmt":"2024-10-20T02:28:49","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-21-30402416-dc\/"},"modified":"2024-10-26T04:19:22","modified_gmt":"2024-10-26T04:19:22","slug":"bsi-21-30402416-dc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-21-30402416-dc\/","title":{"rendered":"BSI 21\/30402416 DC"},"content":{"rendered":"

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.<\/p>\n

This document covers isolation valves for use in low and cryogenic temperature service where the design low-temperature service is -50 \u00b0C down to \u2013196 \u00b0C.<\/p>\n

This document does not apply to valves for cryogenic services, designed in accordance with ISO 21011<\/span><\/span>, used with cryogenic vessels.<\/p>\n

Where the requirements of this document vary from those given in the valve product standards, the requirements of this document apply.<\/p>\n

This document covers valves with body, bonnet, bonnet extension or cover made of metallic materials.<\/p>\n

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.<\/p>\n

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,<\/p>\n

and applies to pressure designations:<\/p>\n

    \n
  1. \n

    PN 16<\/span><\/span>; 25; 40; 100; 160; 250; 400;<\/p>\n<\/li>\n

  2. \n

    Class 150; 300; 600; 800; 900; 1 500; 2 500.<\/p>\n<\/li>\n<\/ol>\n

    \n
    \n NOTE\n <\/div>\n

    Not all type and size combination are available in all pressure ratings.<\/p>\n<\/div>\n

    This document excludes testing for safety valves and control valves.<\/p>\n","protected":false},"excerpt":{"rendered":"

    BS EN ISO 28921-1. Industrial valves. Isolating valves for low-temperature applications – Part 1. Design, manufacturing and production testing<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    BSI<\/b><\/a><\/td>\n2021<\/td>\n33<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":372347,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[358,2641],"product_tag":[],"class_list":{"0":"post-372338","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-23-060-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/372338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/372347"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=372338"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=372338"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=372338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}