{"id":3187,"date":"2025-12-11T16:22:16","date_gmt":"2025-12-11T08:22:16","guid":{"rendered":"https:\/\/ptfesuppliers.com\/?post_type=product&p=3187"},"modified":"2026-04-03T17:18:10","modified_gmt":"2026-04-03T09:18:10","slug":"metal-octagonal-gaskets","status":"publish","type":"product","link":"https:\/\/ptfesuppliers.com\/fr\/product\/metal-octagonal-gaskets\/","title":{"rendered":"Joints octogonaux m\u00e9talliques"},"content":{"rendered":"

Introduction to Metal Octagonal Gaskets<\/strong><\/h2>\n

Metal octagonal gaskets, also known as ring joint (RJ) gaskets, are engineered for high-pressure and high-temperature sealing applications. They are widely used in pipelines, valves, and pressure vessels in oil, gas, petrochemical, and power industries. The octagonal cross-section provides line contact sealing, delivering self-tightening performance under pressure, ensuring zero leakage even in extreme operating conditions.<\/p>\n

Principaux avantages<\/strong><\/h2>\n

Superior Sealing Performance<\/strong><\/h3>\n
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  • \n

    Line Contact Design:<\/strong> Self-tightening under system pressure; radial expansion increases sealing reliability with rising pressure.<\/p>\n<\/li>\n

  • \n

    High Preload Efficiency:<\/strong> Ensures consistent sealing even under fluctuating pressures and thermal cycles.<\/p>\n<\/li>\n<\/ul>\n

    Unmatched Reliability<\/strong><\/h3>\n
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    • \n

      Forged Metal Construction:<\/strong> Free of internal stress defects, excellent creep and relaxation resistance.<\/p>\n<\/li>\n

    • \n

      Temperature & Pressure Durability:<\/strong> Maintains performance under severe temperature swings and high-pressure environments.<\/p>\n<\/li>\n<\/ul>\n

      Wide Material Compatibility<\/strong><\/h3>\n
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      • \n

        Standard and Specialty Metals:<\/strong> Soft iron, low-carbon steel, stainless steel (304\/316), chromium-molybdenum steel (F5\/F11\/F22), nickel alloys (Inconel 600\/718), and Monel.<\/p>\n<\/li>\n

      • \n

        Tailored to Corrosive & High-Temperature Conditions:<\/strong> Provides optimal material selection for specific environments.<\/p>\n<\/li>\n<\/ul>\n

        High Pressure Capacity<\/strong><\/h3>\n
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        • \n

          Designed for ASME B16.20 ring joint flanges.<\/p>\n<\/li>\n

        • \n

          Suitable for API 6A, ANSI Class 1500+, and nuclear or supercritical power plant applications.<\/p>\n<\/li>\n<\/ul>\n

          Precision Manufacturing & Certification<\/strong><\/h3>\n
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          • \n

            CNC machined for precise dimensions, meeting ASME B16.20, EN 1092-1 standards.<\/p>\n<\/li>\n

          • \n

            Supports material traceability (MTR) and third-party certification for critical industry requirements.<\/p>\n<\/li>\n<\/ul>\n

            Joints octogonaux m\u00e9talliques <\/strong>Domaines d'application<\/strong><\/h2>\n

            Oil & Gas<\/strong><\/h3>\n

            Wellhead equipment, Christmas trees, high-pressure pipelines, compressors, LNG facilities.<\/p>\n

            Petrochemical & Chemical<\/strong><\/h3>\n

            Hydrocrackers, high-pressure heat exchangers, ammonia synthesis units, high-temperature and high-pressure valves and pipelines.<\/p>\n

            Power Generation<\/strong><\/h3>\n

            Ultra-supercritical thermal power plants, nuclear power plants (nuclear safety shells, main steam systems).<\/p>\n

            Heavy Industry<\/strong><\/h3>\n

            High-pressure vessels, experimental devices, and extreme flange connections where conventional gaskets fail.<\/p>\n

            Metal Octagonal Gasket<\/strong>\u00a0Features and Highlights<\/strong><\/h2>\n

            Line Contact Self-Tightening<\/strong><\/h3>\n

            The octagonal cross-section ensures that the gasket tightens as system pressure rises, maintaining a leak-free seal.<\/p>\n

            Material Versatility<\/strong><\/h3>\n

            Extensive range of metals, from standard stainless steel to nickel-based alloys, for corrosion, high temperature, and high-pressure applications.<\/p>\n

            Precision Engineering<\/strong><\/h3>\n

            CNC-machined to exact tolerances, ensuring perfect fit for ring joint flanges and compliance with international standards.<\/p>\n

            High Reliability & Longevity<\/strong><\/h3>\n

            Forged construction minimizes creep and relaxation, extending service life and reducing maintenance in critical applications.<\/p>","protected":false},"excerpt":{"rendered":"

            Shape: Octagonal cross-section (Ring Joint)
            \nMaterial Options: Soft iron, low-carbon steel, 304\/316 stainless steel, Cr-Mo steel (F5, F11, F22), Monel, Inconel 600\/718
            \nTemperature Range: -200\u00b0C to +650\u00b0C (up to 800\u00b0C for stainless steel)
            \nPressure Range: Up to 15,000 psi (1,034 bar) or higher, suitable for ultra-high pressure applications
            \nStandards Compliance: ASME B16.20, EN 1092-1
            \nSealing Type: Line contact, self-tightening
            \nApplications: Oil & gas, petrochemical, power generation, heavy industrial vessels and pipelines
            \nCustomization: Available per flange type (RX\/BX groove), material, and dimensional requirements
            \nCertification: Material traceability reports (MTR) and third-party testing optional<\/p>","protected":false},"featured_media":3879,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[44,41],"product_tag":[],"class_list":{"0":"post-3187","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-metal-seals","7":"product_cat-sealing-materials","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"gallery_images":[3147,3146,3148],"_links":{"self":[{"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/product\/3187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/comments?post=3187"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/media\/3879"}],"wp:attachment":[{"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/media?parent=3187"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/product_brand?post=3187"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/product_cat?post=3187"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/fr\/wp-json\/wp\/v2\/product_tag?post=3187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}