{"id":69649,"date":"2026-05-17T17:27:25","date_gmt":"2026-05-17T17:27:25","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/en-593\/"},"modified":"2026-05-19T15:30:11","modified_gmt":"2026-05-19T15:30:11","slug":"en-593","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/en-593\/","title":{"rendered":"EN 593"},"content":{"rendered":"<h2>Technical standards and purpose of butterfly valves according to EN 593<\/h2>\n<p>The European standard EN 593 regulates mandatory technical requirements for industrial butterfly valves with an all-metal body. This equipment is intended for integration into pipeline systems via flanged connections or butt welding. The main functions of the devices include flow shut-off, regulation of working medium parameters, and process control in various industrial sectors.<\/p>\n<p><strong>Nominal pressure and performance classes:<\/strong><\/p>\n<ul>\n<li>PN: 2.5; 6; 10; 16; 25; 40.<\/li>\n<li>Class: 150; 300.<\/li>\n<\/ul>\n<p><strong>Size range (DN):<\/strong><\/p>\n<ul>\n<li>Ranges: DN 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 750, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400.<\/li>\n<li>Note: the DN 750 size is used exclusively for pressure classes 150 and 300.<\/li>\n<\/ul>\n<p>EV Group China specialists point out that for highly specialized tasks in automated process control, one should follow the EN 1349 and EN 60534-2-1 standards, which supplement the requirements of the basic EN 593 specification.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[114],"class_list":["post-69649","wiki","type-wiki","status-publish","hentry","wiki_category-en"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69649","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\/69649\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69649"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}