{"id":69517,"date":"2026-05-17T17:26:43","date_gmt":"2026-05-17T17:26:43","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/din-2561\/"},"modified":"2026-05-19T15:29:17","modified_gmt":"2026-05-19T15:29:17","slug":"din-2561","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/din-2561\/","title":{"rendered":"DIN 2561"},"content":{"rendered":"<h2>Technical specifications and purpose of DIN 2561 flanges<\/h2>\n<p>The DIN 2561 standard defines the engineering requirements for oval threaded flanges equipped with a hub. These products are designed for operation in pipeline systems with a nominal pressure of 10 bar (PN 10) and 16 bar (PN 16) with nominal diameters ranging from DN 6 to DN 40. EV Group China products meet the strict requirements for geometry and operational reliability set by specialized committees for boiler and pipeline equipment standardization.<\/p>\n<h3>Materials and manufacturing standards<\/h3>\n<p>To ensure durability and corrosion resistance in various industrial environments, EV Group China offers flanges manufactured from the following steel groups:<\/p>\n<ul>\n<li>Stainless steel grades (high resistance to aggressive environments);<\/li>\n<li>Carbon steel grades (optimal balance of strength and cost);<\/li>\n<li>Alloy steel grades (for operation under high-load conditions).<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"\/image\/catalog\/wiki\/flange\/DIN 2561 \u0447\u0435\u0440\u0442\u0435\u0436.png\" alt=\"Drawing of oval threaded flange DIN 2561\" title=\"Oval threaded flange DIN 2561 drawing\"><\/p>\n<h3>Placing an order for manufacturing according to DIN 2561<\/h3>\n<p>To ensure precision in the production and supply of metal products, when placing an order with EV Group China, it is necessary to specify the following technical parameters:<\/p>\n<ul>\n<li>Size type and design configuration of the flange;<\/li>\n<li>Geometry and profile of the sealing surface;<\/li>\n<li>Exact overall dimensions and required tolerances;<\/li>\n<li>Type and parameters of the threaded connection;<\/li>\n<li>Specifications of fasteners (bolt size);<\/li>\n<li>Requirements for the cleanliness and condition of the sealing surfaces;<\/li>\n<li>Steel grade and calculated weight of the product.<\/li>\n<\/ul>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[116],"class_list":["post-69517","wiki","type-wiki","status-publish","hentry","wiki_category-din"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69517","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\/69517\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69517"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}