{"id":8933,"date":"2026-06-14T22:58:13","date_gmt":"2026-06-14T14:58:13","guid":{"rendered":"https:\/\/www.stvvalves.com\/?post_type=product&p=8933"},"modified":"2026-06-14T23:04:05","modified_gmt":"2026-06-14T15:04:05","slug":"1500lb-wafer-check-valve-astm-a105-6-inch","status":"publish","type":"product","link":"https:\/\/www.stvvalves.com\/ru\/products\/1500lb-wafer-check-valve-astm-a105-6-inch\/","title":{"rendered":"1500LB Wafer Check Valve, ASTM A105, 6 Inch"},"content":{"rendered":"

High-Pressure Forged Steel Wafer Check Valve for Oil, Gas, Steam, and Industrial Applications<\/h2>\n

The 1500LB Wafer Check Valve, ASTM A105, 6 Inch<\/a> (DN150)<\/strong> is a compact, high-performance non-return valve designed for demanding high-pressure pipeline systems. Manufactured from ASTM A105 forged carbon steel<\/strong>, this valve provides exceptional mechanical strength, pressure resistance, and reliability in critical applications such as oil and gas processing, petrochemical plants, power generation facilities, and high-pressure steam systems.<\/p>\n

Designed to prevent reverse flow automatically, the valve protects pumps, compressors, turbines, and other valuable equipment from damage caused by backflow and pressure surges. Its wafer-style construction offers a lightweight, space-saving solution while maintaining excellent sealing performance under ASME Class 1500 LB<\/strong><\/a> pressure conditions.<\/p>\n

Manufactured in accordance with API 594<\/strong>, ASME B16.34<\/strong>, and API 598<\/strong>, the valve meets the stringent requirements of modern industrial projects worldwide.<\/p>\n

\n

Product Overview<\/h1>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product Name<\/td>\nWafer Check Valve<\/td>\n<\/tr>\n
Valve Type<\/td>\nDual Plate Wafer Check Valve<\/td>\n<\/tr>\n
Size<\/td>\n6 Inch (DN150)<\/td>\n<\/tr>\n
Pressure Rating<\/td>\nASME Class 1500 LB<\/td>\n<\/tr>\n
Body Material<\/td>\nASTM A105 Forged Carbon Steel<\/td>\n<\/tr>\n
Disc Material<\/td>\nA105 + 13Cr \/ F6a SS<\/td>\n<\/tr>\n
Seat Type<\/td>\nMetal Seat<\/td>\n<\/tr>\n
Spring Material<\/td>\nInconel X-750<\/td>\n<\/tr>\n
Connection Type<\/td>\nWafer<\/td>\n<\/tr>\n
Design Standard<\/td>\nAPI 594<\/td>\n<\/tr>\n
Pressure-Temperature Rating<\/td>\nASME B16.34<\/td>\n<\/tr>\n
Inspection & Testing<\/td>\nAPI 598<\/td>\n<\/tr>\n
Face-to-Face<\/td>\nAPI 594<\/td>\n<\/tr>\n
Installation<\/td>\nHorizontal or Vertical<\/td>\n<\/tr>\n
Applicable Media<\/td>\nOil, Gas, Steam, Water, Hydrocarbons<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n

Product Features<\/h2>\n

ASTM A105 Forged Steel Construction<\/h3>\n

The valve body is manufactured from ASTM A105 forged carbon steel<\/strong>, providing superior strength compared to conventional cast steel valves.<\/p>\n

Advantages<\/h4>\n
    \n
  • High pressure resistance<\/li>\n
  • Excellent structural integrity<\/li>\n
  • Improved fatigue strength<\/li>\n
  • Superior impact resistance<\/li>\n
  • Long service life<\/li>\n<\/ul>\n

    Forged steel construction is widely preferred for Class 1500 pressure applications.<\/p>\n

    \n

    Class 1500 High-Pressure Capability<\/h3>\n

    Designed for severe operating environments, the valve can handle high-pressure services commonly found in:<\/p>\n

      \n
    • Refinery units<\/li>\n
    • Petrochemical facilities<\/li>\n
    • High-pressure steam systems<\/li>\n
    • Natural gas processing plants<\/li>\n
    • Offshore production platforms<\/li>\n<\/ul>\n

      Class 1500 valves are engineered for critical process isolation and flow protection applications.<\/p>\n

      \n

      Compact Wafer Design<\/h3>\n

      The wafer-style body fits between standard flanges without requiring additional bolting lugs.<\/p>\n

      Benefits include:<\/p>\n

        \n
      • Reduced installation space<\/li>\n
      • Lower overall system weight<\/li>\n
      • Easier handling<\/li>\n
      • Lower installation costs<\/li>\n
      • Simplified maintenance<\/li>\n<\/ul>\n
        \n

        Dual Plate Spring-Assisted Design<\/h3>\n

        The spring-loaded dual-disc design provides:<\/p>\n

          \n
        • Fast closing response<\/li>\n
        • Reduced water hammer<\/li>\n
        • Low pressure drop<\/li>\n
        • Improved flow efficiency<\/li>\n
        • Enhanced equipment protection<\/li>\n<\/ul>\n
          \n

          Technical Specifications<\/h1>\n

          Materials of Construction<\/h2>\n
          \n
          \n\n\n\n\n\n\n\n\n\n\n
          Component<\/th>\nMaterial<\/th>\n<\/tr>\n<\/thead>\n
          Body<\/td>\nASTM A105<\/td>\n<\/tr>\n
          Disc<\/td>\nASTM A105 + 13Cr<\/td>\n<\/tr>\n
          Seat<\/td>\nMetal Seat<\/td>\n<\/tr>\n
          Shaft<\/td>\nF6a Stainless Steel<\/td>\n<\/tr>\n
          Spring<\/td>\nInconel X-750<\/td>\n<\/tr>\n
          Retainer<\/td>\nStainless Steel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
          \n

          Applicable Standards<\/h2>\n
          \n
          \n\n\n\n\n\n\n\n\n\n
          Standard<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
          API 594<\/td>\nCheck Valve Design<\/td>\n<\/tr>\n
          ASME B16.34<\/td>\nPressure-Temperature Ratings<\/td>\n<\/tr>\n
          API 598<\/td>\nInspection & Testing<\/td>\n<\/tr>\n
          MSS SP-25<\/td>\nValve Marking<\/td>\n<\/tr>\n
          NACE MR0175<\/td>\nOptional<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
          \n

          How the Valve Works<\/h1>\n

          A check valve operates automatically based on flow direction and pressure differential.<\/p>\n

          Forward Flow<\/h3>\n
            \n
          1. Flow enters the valve.<\/li>\n
          2. The dual plates open against spring tension.<\/li>\n
          3. Fluid passes through the valve with minimal restriction.<\/li>\n<\/ol>\n

            Reverse Flow<\/h3>\n
              \n
            1. Flow begins to reverse.<\/li>\n
            2. Springs immediately force the plates closed.<\/li>\n
            3. Backflow is prevented.<\/li>\n
            4. Downstream equipment remains protected.<\/li>\n<\/ol>\n

              The rapid-closing mechanism minimizes water hammer and pressure shock.<\/p>\n

              \n

              Why Choose a Wafer Check Valve?<\/h1>\n

              Compared with swing check valves, wafer check valves offer several advantages.<\/p>\n

              \n
              \n\n\n\n\n\n\n\n\n\n\n
              Feature<\/th>\nWafer Check Valve<\/th>\nSwing Check Valve<\/th>\n<\/tr>\n<\/thead>\n
              Weight<\/td>\nLower<\/td>\n<\/td>\n<\/tr>\n
              Face-to-Face Dimension<\/td>\nShorter<\/td>\n<\/td>\n<\/tr>\n
              Water Hammer Resistance<\/td>\nBetter<\/td>\n<\/td>\n<\/tr>\n
              Installation Space<\/td>\nSmaller<\/td>\n<\/td>\n<\/tr>\n
              Closing Speed<\/td>\nFaster<\/td>\n<\/td>\n<\/tr>\n
              Maintenance<\/td>\nLower<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

              For high-pressure systems, wafer check valves are often preferred due to their compact and efficient design.<\/p>\n

              \n

              Typical Applications<\/h1>\n

              Oil & Gas Industry<\/h2>\n

              Widely used in:<\/p>\n

                \n
              • Production facilities<\/li>\n
              • Pipeline systems<\/li>\n
              • Compressor stations<\/li>\n
              • Process units<\/li>\n<\/ul>\n

                Oil & Gas Installation<\/h3>\n
                \n
                \n
                \n
                \"https:\/\/images.openai.com\/static-rsc-4\/508-qjEroauDOi98Aio4qrJ4XK7NeEJGBRH1ArA6x8zi9I0DHwPtah2fMicExS-TIN9bflm4HBfkPnVUEM5_dUflOBwiT_wx454YCw7xqy1Fs-Qkbr0cy3DXdD_BUtR30_3g0jDe76b-Wsah528KD26Df4F2jt5Sc1utatceRnoMZA8FvmJI9ZYl_uDqbvnt?purpose=fullsize\"<\/div>\n<\/div>\n<\/div>\n
                \n
                \n
                \"https:\/\/images.openai.com\/static-rsc-4\/iEdQOnLhECwmZijuKDXO7Yf-1JiI0ZqUkkDYvih1zJv6sw79XCa0E5bX_yyVw2jlqmJYv1oAp5aiGsQshvsakhquS5kx7EApLt0ScUMr6sP5KYZaF2nAk1bsOb1VTqMhep_B3jS3NSwVbN1IfDacM4jKYtAa-bdb9cpemIut3qPrAd5A4AjkLP2M61TMiQUG?purpose=fullsize\"<\/div>\n<\/div>\n<\/div>\n
                \n
                \n
                \"https:\/\/images.openai.com\/static-rsc-4\/moaHay1cDfzTKJ2nda2s_ieS1H7NOavWXtNi18OQWKbHn-a6PRVbv-RyeESSmUZgfgFD8wlFVh_DJrJZlI4lXRgoTxmQBRMt3J5qb373IHOe5dRYFnQmO2X8dMVkr_KjI1magoorz3Yg2YGXN3GbaceGtoQLMcpIQBw_nUrebxOtSZZ1u6Qo6MOdWArN4rra?purpose=fullsize\"<\/div>\n
                \n
                \n
                4<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
                \n

                Petrochemical Plants<\/h2>\n

                Suitable for:<\/p>\n

                  \n
                • Hydrocarbon processing<\/li>\n
                • Utility systems<\/li>\n
                • Process lines<\/li>\n
                • High-pressure transfer systems<\/li>\n<\/ul>\n
                  \n

                  Power Generation Facilities<\/h2>\n

                  Installed in:<\/p>\n

                    \n
                  • Steam systems<\/li>\n
                  • Feedwater systems<\/li>\n
                  • Boiler auxiliary piping<\/li>\n
                  • Turbine protection circuits<\/li>\n<\/ul>\n

                    Power Plant Application<\/h3>\n
                    \n
                    \n
                    \n
                    \"https:\/\/images.openai.com\/static-rsc-4\/U4nI4YklLuWSK_4yhQLpoTrzAbrmbP6h5khgP_KM7uIwasTHaAngkJfGYMyq3H3BtNLrEbb0Y1BX9PVT3bHs0-nLyFQY1XlIN4ow5XjpccNUrlapNQQcOU9tjNbdFJe0KxYELR1-A6sa1AhSkf8OqL5MpMXaDuShv1VG845w-2NwYjcyE8I5Ew_YPMCTg-C3?purpose=fullsize\"<\/div>\n<\/div>\n<\/div>\n
                    \n
                    \n
                    \"https:\/\/images.openai.com\/static-rsc-4\/Ahp38eX0qp3LxRnHxQr10D1ZonOhQ69PvNz6lGWwNBa94BOMumnURcHZxjkyJqnVx0f2i7y49eTdjWvPpeZv3e9Hsjm7SZq5J153JAGGUzWOHPcJLhLeWeLSLy4XUekuIXcY0xt-qRFhP9TwOMWG9OLZbyn9EFxkS6e3Wkol7ZZjea_xCo-ljNgDXSbHgsh5?purpose=fullsize\"<\/div>\n<\/div>\n<\/div>\n
                    \n
                    \n
                    \"https:\/\/images.openai.com\/static-rsc-4\/Z2a-XmlrwXWAmLh74o76rQLIbDq7iCrGyIFZ7E2RX3WPAM2hVV0CfiiJ4NtN2PvCoUa72KPRlEue7vMAMXuwhb4Zl6YQAytpG93s8MGdeShtrrLX-4jvwMPwII2AIz9DQRgdKzP0fUjOjoZ6nSYBSouwAmHuxJWPMFENI8dApGTy-eJKK2Dm1khpzSIYrLzS?purpose=fullsize\"<\/div>\n
                    \n
                    \n
                    4<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
                    \n

                    Offshore Platforms<\/h2>\n

                    Ideal for:<\/p>\n

                      \n
                    • Produced water systems<\/li>\n
                    • Utility piping<\/li>\n
                    • Gas compression systems<\/li>\n
                    • Injection systems<\/li>\n<\/ul>\n
                      \n

                      High-Pressure Steam Systems<\/h2>\n

                      The metal-seated design provides reliable operation in elevated temperature and pressure conditions.<\/p>\n

                      \n

                      Advantages of ASTM A105 Wafer Check Valves<\/h1>\n

                      High Strength<\/h3>\n

                      Forged steel construction ensures excellent pressure containment.<\/p>\n

                      Reliable Shutoff<\/h3>\n

                      Metal-to-metal seating provides dependable sealing performance.<\/p>\n

                      Reduced Water Hammer<\/h3>\n

                      Spring-assisted closure minimizes pressure shocks.<\/p>\n

                      Compact Design<\/h3>\n

                      Ideal for installations with limited space.<\/p>\n

                      Cost-Effective<\/h3>\n

                      Lower installation and maintenance costs compared with larger conventional check valves.<\/p>\n

                      \n

                      Inspection and Testing<\/h1>\n

                      Every valve undergoes comprehensive quality control procedures.<\/p>\n

                      Hydrostatic Shell Test<\/h3>\n

                      Verifies structural integrity.<\/p>\n

                      Seat Leakage Test<\/h3>\n

                      Confirms sealing performance.<\/p>\n

                      Dimensional Inspection<\/h3>\n

                      Ensures compliance with design standards.<\/p>\n

                      Functional Operation Test<\/h3>\n

                      Validates opening and closing performance.<\/p>\n

                      PMI Testing<\/h3>\n

                      Available upon request.<\/p>\n

                      \n

                      Optional Features<\/h1>\n

                      Material Upgrades<\/h2>\n
                        \n
                      • ASTM A182 F11<\/li>\n
                      • ASTM A182 F22<\/li>\n
                      • ASTM A182 F316<\/li>\n
                      • Duplex Stainless Steel<\/li>\n<\/ul>\n
                        \n

                        Compliance Options<\/h2>\n
                          \n
                        • NACE MR0175<\/li>\n
                        • API 6D Requirements<\/li>\n
                        • Low-Temperature Service<\/li>\n
                        • Sour Gas Service<\/li>\n<\/ul>\n
                          \n

                          Special Trim Options<\/h2>\n
                            \n
                          • Stellite Hardfacing<\/li>\n
                          • Enhanced Wear Resistance<\/li>\n
                          • High-Temperature Trim<\/li>\n<\/ul>\n
                            \n

                            Frequently Asked Questions<\/h1>\n

                            What is ASTM A105?<\/h3>\n

                            ASTM A105 is a forged carbon steel material widely used for high-pressure piping components and valves.<\/p>\n

                            Why choose a Class 1500 check valve?<\/h3>\n

                            Class 1500 valves are designed for severe pressure conditions commonly encountered in refinery, petrochemical, and power generation applications.<\/p>\n

                            Can this valve be installed vertically?<\/h3>\n

                            Yes. Vertical installation is permitted when flow direction is upward.<\/p>\n

                            What is the advantage of a dual plate design?<\/h3>\n

                            Dual plates reduce weight, improve response time, and minimize water hammer.<\/p>\n

                            Is the valve suitable for steam service?<\/h3>\n

                            Yes. The metal-seated design and forged steel construction make it suitable for high-pressure steam systems within design limits.<\/p>\n

                            \n

                            Request a Quote<\/h1>\n

                            China ASTM A105 Wafer Check Valve Manufacturer<\/h2>\n

                            We provide:<\/p>\n

                            \u2705 API 594 Compliant Manufacturing
                            \u2705 Forged Steel Valve Expertise
                            \u2705 Class 1500 High-Pressure Solutions
                            \u2705 Third-Party Inspection Support
                            \u2705 Fast Production Lead Times
                            \u2705 Worldwide Export Experience<\/p>\n

                            Please provide:<\/p>\n

                              \n
                            • Valve Size (6 Inch \/ DN150)<\/li>\n
                            • Pressure Rating (Class 1500)<\/li>\n
                            • Media Type<\/li>\n
                            • Operating Temperature<\/li>\n
                            • Quantity Required<\/li>\n
                            • Special Requirements<\/li>\n<\/ul>\n

                              Our engineering team will provide a detailed quotation, technical datasheet, material certificates, GA drawing, and delivery schedule within 24 hours.<\/p>\n","protected":false},"excerpt":{"rendered":"

                              STV Valve Technology Group Co., Ltd is a professional leader China 1500LB Wafer Check Valve, ASTM A105 Check Valve, 6 Inch Check Valve, Forged Steel Check Valve, Class 1500 Check Valve, Dual Plate Check Valve, API 594 Check Valve, High Pressure Check Valve, Wafer Non Return Valve, Industrial Check Valve Manufacturer, China Check Valve Supplier, Forged Carbon Steel Check Valve With High Quality And Low Price.<\/p>","protected":false},"featured_media":8934,"template":"","meta":[],"product_brand":[],"product_cat":[46,84],"product_tag":[3173,4142,1650,4141,4145,4146,497,213,4144,4143,4147,633],"class_list":{"0":"post-8933","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-check-valves","7":"product_cat-wafer-check-valve","8":"product_tag-600lb-lug-check-valve","9":"product_tag-8-inch-check-valve","10":"product_tag-api-594-check-valve","11":"product_tag-cf8m-check-valve","12":"product_tag-china-check-valve-supplier","13":"product_tag-class-600-check-valve","14":"product_tag-dual-plate-check-valve","15":"product_tag-high-pressure-check-valve","16":"product_tag-industrial-check-valve-manufacturer","17":"product_tag-lug-type-check-valve","18":"product_tag-non-return-valve-cf8m","19":"product_tag-stainless-steel-check-valve","21":"first","22":"instock","23":"shipping-taxable","24":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product\/8933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/media\/8934"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/media?parent=8933"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product_brand?post=8933"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product_cat?post=8933"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ru\/wp-json\/wp\/v2\/product_tag?post=8933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}