{"id":6652,"date":"2026-03-30T06:37:42","date_gmt":"2026-03-30T06:37:42","guid":{"rendered":"https:\/\/kateteco.com\/?post_type=product&p=6652"},"modified":"2026-04-03T07:40:33","modified_gmt":"2026-04-03T07:40:33","slug":"triple-offset-metal-seated-butterfly-valve","status":"publish","type":"product","link":"https:\/\/kateteco.com\/en\/product\/triple-offset-metal-seated-butterfly-valve\/","title":{"rendered":"Triple Offset Metal Seated Butterfly Valve \u2013 Bidirectional Zero Leakage"},"content":{"rendered":"

Product Details<\/span><\/h2>\n

Overview<\/span><\/h3>\n

The triple offset metal seated butterfly valve is a high\u2011performance industrial valve based on three eccentric principles: axial eccentricity, radial eccentricity, and conical seat eccentricity. This unique geometry ensures that the disc travels through the 0\u201190\u00b0 range with virtually no friction against the seat, completely eliminating sealing face wear common in conventional butterfly valves. The valve employs a torque\u2011seated metal sealing structure, achieving bidirectional zero\u2011leakage performance.<\/span><\/p>\n

Compared with traditional gate and globe valves, the triple offset butterfly valve offers significant advantages, including compact construction, light weight, low operating torque, and easy installation and maintenance, making it highly reliable for severe service conditions involving high temperature, high pressure, and corrosive media.<\/span><\/p>\n

Key Features<\/span><\/h3>\n

1. Triple Offset Friction\u2011Free Design<\/strong><\/span><\/p>\n

    \n
  • \n

    First offset: Shaft offset from the seat sealing face centerline<\/span><\/p>\n<\/li>\n

  • \n

    Second offset: Shaft offset from the pipeline centerline<\/span><\/p>\n<\/li>\n

  • \n

    Third offset: Conical sealing surface geometric eccentricity<\/span><\/p>\n<\/li>\n

  • \n

    The disc contacts and disengages from the seat instantaneously during operation, enabling friction\u2011free travel and greatly extending valve service life<\/span><\/p>\n<\/li>\n<\/ul>\n

    2. Bidirectional Zero Leakage Sealing<\/strong><\/span><\/p>\n

      \n
    • \n

      Metal\u2011to\u2011metal hard sealing<\/span><\/p>\n<\/li>\n

    • \n

      Higher pressure results in tighter sealing; achieves bidirectional bubble\u2011tight zero leakage<\/span><\/p>\n<\/li>\n

    • \n

      Complies with ISO 5208 Class VI leakage rating<\/span><\/p>\n<\/li>\n<\/ul>\n

      3. High Temperature & High Pressure Capability<\/strong><\/span><\/p>\n

        \n
      • \n

        Temperature range: -196\u00b0C to +600\u00b0C (depending on materials)<\/span><\/p>\n<\/li>\n

      • \n

        Pressure rating: Class150 to Class1500 \/ PN10 to PN100<\/span><\/p>\n<\/li>\n

      • \n

        Suitable for high\u2011temperature steam, thermal oil, hot gas, etc.<\/span><\/p>\n<\/li>\n<\/ul>\n

        4. Fire Safe Design<\/strong><\/span><\/p>\n

          \n
        • \n

          The metal sealing structure is inherently fire\u2011safe<\/span><\/p>\n<\/li>\n

        • \n

          Complies with API 607 \/ ISO 10497 fire test standards<\/span><\/p>\n<\/li>\n<\/ul>\n

          5. Easy Maintenance<\/strong><\/span><\/p>\n

            \n
          • \n

            Seals can be replaced in\u2011situ without removing the valve body from the pipeline<\/span><\/p>\n<\/li>\n

          • \n

            Blowout\u2011proof stem design meeting API 609 safety requirements<\/span><\/p>\n<\/li>\n<\/ul>\n

            Technical Specifications<\/span><\/h3>\n
            \n
            \n
            <\/div>\n
            <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n
            Parameter<\/span><\/th>\nDetails<\/span><\/th>\n<\/tr>\n<\/thead>\n
            Model Series<\/span><\/td>\nD343H \/ D373H \/ D643H \/ D943H etc.<\/span><\/td>\n<\/tr>\n
            Size Range<\/span><\/td>\nDN50 \u2013 DN2400 (NPS 2\u2033 \u2013 96\u2033)<\/span><\/td>\n<\/tr>\n
            Pressure Rating<\/span><\/td>\nPN10 \u2013 PN100 \/ Class150 \u2013 Class1500<\/span><\/td>\n<\/tr>\n
            Connection Type<\/span><\/td>\nWafer \/ Lug \/ Flanged \/ Butt Weld<\/span><\/td>\n<\/tr>\n
            Operation<\/span><\/td>\nManual gear, electric, pneumatic, hydraulic<\/span><\/td>\n<\/tr>\n
            Temperature Range<\/span><\/td>\n-196\u00b0C to +600\u00b0C<\/span><\/td>\n<\/tr>\n
            Leakage Rating<\/span><\/td>\nBidirectional zero leakage (bubble\u2011tight)<\/span><\/td>\n<\/tr>\n
            Design Standards<\/span><\/td>\nAPI 609, ASME B16.34, GB\/T 12238, JB\/T 8527<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

            Material Options<\/span><\/h3>\n
            \n
            \n
            <\/div>\n
            <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n
            Component<\/span><\/th>\nAvailable Materials<\/span><\/th>\n<\/tr>\n<\/thead>\n
            Body<\/strong><\/span><\/td>\nCast Steel (WCB), Carbon Steel (A105), Stainless Steel (304\/316), Chrome\u2011Moly Steel, Duplex Stainless, Hastelloy, Monel<\/span><\/td>\n<\/tr>\n
            Disc<\/strong><\/span><\/td>\nCast Steel, Stainless Steel, Duplex Stainless, Titanium, Hastelloy<\/span><\/td>\n<\/tr>\n
            Stem<\/strong><\/span><\/td>\n410 Stainless Steel, SS304, SS316, 17\u20114PH, Monel K500<\/span><\/td>\n<\/tr>\n
            Seat Sealing Face<\/strong><\/span><\/td>\nStainless steel with Stellite hardfacing, 13% Cr alloy, Inconel<\/span><\/td>\n<\/tr>\n
            Seal Ring<\/strong><\/span><\/td>\nMulti\u2011layer stainless steel + graphite laminate \/ Solid metal seal<\/span><\/td>\n<\/tr>\n
            Packing<\/strong><\/span><\/td>\nFlexible graphite, PTFE<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

            Applicable Media<\/span><\/h3>\n
              \n
            • \n

              High\u2011temperature steam, hot water, thermal oil<\/span><\/p>\n<\/li>\n

            • \n

              Oil, natural gas, coke oven gas<\/span><\/p>\n<\/li>\n

            • \n

              Acids, alkalis, and corrosive chemicals<\/span><\/p>\n<\/li>\n

            • \n

              Flue gas, air, oxygen<\/span><\/p>\n<\/li>\n

            • \n

              Cryogenic media (e.g., LNG)<\/span><\/p>\n<\/li>\n<\/ul>\n

              Typical Applications<\/span><\/h3>\n
                \n
              • \n

                Petrochemical & Chemical<\/strong>\u00a0\u2013 Refinery units, ethylene cracking, storage and transportation systems<\/span><\/p>\n<\/li>\n

              • \n

                Power Generation<\/strong>\u00a0\u2013 Power plant boilers, turbine bypass lines, thermal piping systems<\/span><\/p>\n<\/li>\n

              • \n

                Metallurgy<\/strong>\u00a0\u2013 Blast furnace gas, converter flue gas, reheating furnaces<\/span><\/p>\n<\/li>\n

              • \n

                District Heating<\/strong>\u00a0\u2013 Long\u2011distance heating networks, heat exchange stations<\/span><\/p>\n<\/li>\n

              • \n

                Marine & Offshore<\/strong>\u00a0\u2013 FPSO, offshore platforms, LNG carriers<\/span><\/p>\n<\/li>\n

              • \n

                Pulp & Paper<\/strong>\u00a0\u2013 Pulping, alkali recovery systems<\/span><\/p>\n<\/li>\n

              • \n

                Food & Pharmaceutical<\/strong>\u00a0\u2013 High\u2011temperature sterilization, clean steam<\/span><\/p>\n<\/li>\n<\/ul>\n

                Actuation Options<\/span><\/h3>\n
                  \n
                • \n

                  Manual Gear<\/strong>\u00a0\u2013 Standard, self\u2011locking, low operating torque<\/span><\/p>\n<\/li>\n

                • \n

                  Electric Actuator<\/strong>\u00a0\u2013 Enables remote control and automation<\/span><\/p>\n<\/li>\n

                • \n

                  Pneumatic Actuator<\/strong>\u00a0\u2013 Fast operation for on\u2011off or modulating service<\/span><\/p>\n<\/li>\n

                • \n

                  Hydraulic Actuator<\/strong>\u00a0\u2013 Suitable for high\u2011torque requirements<\/span><\/p>\n<\/li>\n<\/ul>\n

                  Customization<\/span><\/h3>\n

                  This product can be customized according to specific service conditions:<\/span><\/p>\n

                    \n
                  • \n

                    High\u2011temperature service<\/strong>\u00a0\u2013 Chrome\u2011Moly steel body + Stellite hardfaced sealing surfaces<\/span><\/p>\n<\/li>\n

                  • \n

                    Highly corrosive service<\/strong>\u00a0\u2013 Stainless steel \/ Duplex \/ Hastelloy materials<\/span><\/p>\n<\/li>\n

                  • \n

                    Cryogenic service<\/strong>\u00a0\u2013 Low\u2011temperature carbon steel \/ stainless steel with anti\u2011fugitive design<\/span><\/p>\n<\/li>\n

                  • \n

                    High\u2011abrasion service<\/strong>\u00a0\u2013 Hardfaced sealing surfaces<\/span><\/p>\n<\/li>\n<\/ul>\n

                    For special requirements, please contact us for professional selection assistance.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                    The triple offset metal seated butterfly valve features an advanced triple offset geometry design that completely eliminates friction between the disc and seat during opening and closing, achieving bidirectional zero leakage with metal\u2011to\u2011metal sealing.<\/p>\n","protected":false},"featured_media":6653,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[54,55],"product_tag":[],"class_list":{"0":"post-6652","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-manual-valve","7":"product_cat-butterfly-valve","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product\/6652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/comments?post=6652"}],"version-history":[{"count":1,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product\/6652\/revisions"}],"predecessor-version":[{"id":6659,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product\/6652\/revisions\/6659"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/media\/6653"}],"wp:attachment":[{"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/media?parent=6652"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product_brand?post=6652"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product_cat?post=6652"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/kateteco.com\/en\/wp-json\/wp\/v2\/product_tag?post=6652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}