{"id":69949,"date":"2026-05-17T17:29:01","date_gmt":"2026-05-17T17:29:01","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/en-1092\/"},"modified":"2026-05-19T15:32:26","modified_gmt":"2026-05-19T15:32:26","slug":"en-1092","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/en-1092\/","title":{"rendered":"EN 1092"},"content":{"rendered":"

Table of Contents<\/h2>\n
    \n
  1. \n

    EN 1092-1 \u2013 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 1: Steel flanges<\/p>\n<\/li>\n

  2. \n

    EN 1092-2 \u2013 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 2: Cast iron flanges<\/p>\n<\/li>\n

  3. \n

    EN 1092-3 \u2013 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 3: Copper alloy flanges<\/p>\n<\/li>\n

  4. \n

    EN 1092-4 \u2013 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 4: Aluminium alloy flanges<\/p>\n<\/li>\n<\/ol>\n

    EN 1092-1 \u2013 Steel Flanges: Technical Aspects<\/h2>\n

    Scope of EN 1092-1 Flanges<\/h3>\n

    The European standard EN 1092-1 establishes regulations for the design and manufacture of steel flanges with nominal pressure ranging from PN 2.5 to PN 400 and nominal size DN 10 to DN 4000. EV Group China provides products that fully comply with these specifications, including requirements for geometry, tolerances, sealing surface types, and material execution.<\/p>\n

    The standard defines flange types, thread connection parameters, marking, and pressure-temperature rating charts. Important: the provisions of the standard do not apply to flanges manufactured from bar stock, nor to types 11, 12, and 13 produced from flat products.<\/p>\n

    Steel Flange Types according to EN 1092-1:<\/h3>\n
      \n
    • 01<\/b> \u2013 Plate flange for welding<\/li>\n
    • 02<\/b> \u2013 Loose flange with weld-on plate collar (Type 32) or lap joint stub (Type 33)<\/li>\n
    • 04<\/b> \u2013 Loose flange with weld-neck collar (Type 34)<\/li>\n
    • 05<\/b> \u2013 Blind flange<\/li>\n
    • 11<\/b> \u2013 Weld-neck flange<\/li>\n
    • 12<\/b> \u2013 Hubbed slip-on flange for welding<\/li>\n
    • 13<\/b> \u2013 Threaded hubbed flange<\/li>\n
    • 21<\/b> \u2013 Integral flange<\/li>\n
    • 32-37<\/b> \u2013 Various types of welding collars, stubs, and necks<\/li>\n<\/ul>\n

      Main Types of Sealing Surfaces<\/h3>\n
        \n
      • Type A:<\/b> Flat face<\/li>\n
      • Type B (B1, B2):<\/b> Raised face<\/li>\n
      • Type C\/D:<\/b> Tongue and groove<\/li>\n
      • Type E\/F:<\/b> Spigot and recess<\/li>\n
      • Type G\/H:<\/b> O-ring groove<\/li>\n<\/ul>\n

        Material Compliance Table (EV Group China Supply)<\/h3>\n\n\n\n\n\n\n
        Carbon Steels<\/th>\nStainless Steels<\/th>\n<\/tr>\n<\/thead>\n
        S235JR (1.0038), P235GH (1.0345), P250GH (1.0460)<\/td>\nX5CrNi18-10 (1.4301), X2CrNiMo17-12-2 (1.4404)<\/td>\n<\/tr>\n
        P265GH (1.0425), P355NH (1.0565), 16Mo3 (1.5415)<\/td>\nX6CrNiMoTi17-12-2 (1.4571), X6CrNiTi18-10 (1.4541)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        EN 1092-2 \u2013 Cast Iron Flanges<\/h2>\n

        The standard regulates requirements for grey, malleable, and ductile cast iron flanges (DN 10\u20134000 range, PN 2.5\u201363). These are used in piping systems requiring high vibration resistance and strength under moderate loads.<\/p>\n

        EN 1092-3 \u2013 Copper Alloy Flanges<\/h2>\n

        Regulates the production of flanges and collars made of copper alloys (PN 6\u201340, DN 10\u20131800). They are effectively used in the chemical industry and shipbuilding due to the high corrosion resistance of copper.<\/p>\n

        EN 1092-4 \u2013 Aluminium Flanges<\/h2>\n

        The standard for aluminium alloy flanges (DN 15\u2013600, PN 10\u201363). Optimal for systems requiring low structural weight while maintaining strength characteristics.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[114],"class_list":["post-69949","wiki","type-wiki","status-publish","hentry","wiki_category-en"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69949","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\/69949\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69949"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}