{"id":8645,"date":"2025-03-26T11:08:09","date_gmt":"2025-03-26T03:08:09","guid":{"rendered":"http:\/\/www.zhengyuan-valve.com\/?p=8645"},"modified":"2025-03-26T11:08:09","modified_gmt":"2025-03-26T03:08:09","slug":"how-to-choose-the-right-flange","status":"publish","type":"post","link":"http:\/\/www.zhengyuan-valve.com\/?p=8645","title":{"rendered":"How to choose the right flange?"},"content":{"rendered":"<p>Flanges are connecting parts in industrial pipes, valves and equipment. Most of them are in the shape of perforated discs, which are sealed and tightened by bolts.<br \/>\nFlanges can be assembled and disassembled flexibly, while ensuring the safe operation of the system!<br \/>\nTo select a suitable flange, you should refer to the following:<br \/>\n\u200c1. Matching standards\u200c<br \/>\nSelect standard models such as national standard (GB), American standard (ANSI), Japanese standard (JIS) according to project requirements.<br \/>\n\u200c2. Material selection\u200c<br \/>\n1. Carbon steel: economical and general (such as Q235)<br \/>\n2. Stainless steel: corrosion-resistant (such as 304, 316L)<br \/>\n3. Alloy steel: resistant to high temperature and high pressure (such as 15CrMo)<br \/>\n\u200c3. Pressure level\u200c<br \/>\nSuch as PN16 (16bar), Class150 (American standard 150psi), which needs to be higher than the maximum working pressure of the system.<br \/>\n\u200c4. Sealing surface type\u200c<br \/>\n1. Flat surface (FF): low pressure and normal temperature<br \/>\n2. Convex surface (RF): general type<br \/>\n3. Concave and convex surface (MFM), tongue and groove surface (TG): high pressure and severe working conditions<\/p>\n<p><img decoding=\"async\" class=\"alignleft size-full wp-image-8646\" src=\"http:\/\/www.zhengyuan-valve.com\/wp-content\/uploads\/2025\/03\/941459310.png\" alt=\"\" width=\"400\" height=\"400\" srcset=\"http:\/\/www.zhengyuan-valve.com\/wp-content\/uploads\/2025\/03\/941459310-66x66.png 66w, http:\/\/www.zhengyuan-valve.com\/wp-content\/uploads\/2025\/03\/941459310-150x150.png 150w, http:\/\/www.zhengyuan-valve.com\/wp-content\/uploads\/2025\/03\/941459310-200x200.png 200w, http:\/\/www.zhengyuan-valve.com\/wp-content\/uploads\/2025\/03\/941459310-300x300.png 300w, http:\/\/www.zhengyuan-valve.com\/wp-content\/uploads\/2025\/03\/941459310.png 400w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flanges ar [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8646,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[1005],"acf":[],"_links":{"self":[{"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/posts\/8645"}],"collection":[{"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8645"}],"version-history":[{"count":1,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/posts\/8645\/revisions"}],"predecessor-version":[{"id":8647,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/posts\/8645\/revisions\/8647"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=\/wp\/v2\/media\/8646"}],"wp:attachment":[{"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8645"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.zhengyuan-valve.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}