{"id":66940,"date":"2026-04-20T13:33:59","date_gmt":"2026-04-20T13:33:59","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/din-28404\/"},"modified":"2026-04-20T13:42:02","modified_gmt":"2026-04-20T13:42:02","slug":"din-28404","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/din-28404\/","title":{"rendered":"DIN 28404"},"content":{"rendered":"<h2>Technical features and operation of vacuum flanges according to DIN 28404<\/h2>\n<p>The DIN 28404 standard regulates geometric parameters and tolerances for quick-release clamp connections used in vacuum technology. These components are key units for the hermetic connection of pipelines and shut-off\/control valves in low, medium, and high vacuum systems.<\/p>\n<h3>Scope of application and engineering characteristics<\/h3>\n<p>Flange connections designed according to DIN 28404 requirements ensure reliable fixation and high speed of system assembly\/disassembly. The main technical advantages of using products from EV Group China are:<\/p>\n<ul>\n<li>Possibility of spatial orientation during installation (installation in any position).<\/li>\n<li>Operational suitability at overpressure in the sealing unit up to 1.5 bar.<\/li>\n<li>High precision of mating surfaces, ensuring the stability of vacuum parameters.<\/li>\n<\/ul>\n<p>EV Group China engineers emphasize that these flanges are optimized for integration into complex vacuum lines, where minimizing equipment downtime during maintenance is critical.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[116,122],"class_list":["post-66940","wiki","type-wiki","status-publish","hentry","wiki_category-din","wiki_category-standarty"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/66940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/66940\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=66940"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=66940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}