{"id":8841,"date":"2026-01-17T21:01:28","date_gmt":"2026-01-17T13:01:28","guid":{"rendered":"https:\/\/www.stvvalves.com\/?post_type=product&p=8841"},"modified":"2026-06-09T12:26:21","modified_gmt":"2026-06-09T04:26:21","slug":"thin-wafer-check-valve-pn16-cf8m-dn150-viton-seat","status":"publish","type":"product","link":"https:\/\/www.stvvalves.com\/ar\/products\/thin-wafer-check-valve-pn16-cf8m-dn150-viton-seat\/","title":{"rendered":"Thin Wafer Check Valve,PN16,CF8M,DN150,Viton Seat"},"content":{"rendered":"

DN150 PN16 CF8M Thin Wafer Check Valve with Viton Seat Manufacturer & Supplier<\/h2>\n

The Thin Wafer Check Valve DN150 PN16 CF8M Viton Seat<\/strong> is a compact, lightweight, and highly efficient non-return valve designed to prevent reverse flow in industrial piping systems. Featuring a wafer-style body design, this valve installs directly between mating flanges, significantly reducing installation space, weight, and overall system costs.<\/p>\n

Manufactured from ASTM A351 CF8M stainless steel (equivalent to AISI 316 Stainless Steel)<\/strong>, the valve offers exceptional corrosion resistance against seawater, chemicals, acids, alkalis, and industrial process fluids. The resilient Viton (FKM) seat<\/strong> provides bubble-tight shutoff, superior chemical compatibility, and excellent performance at elevated temperatures.<\/p>\n

Designed for PN16 pressure service<\/strong> and DN150 (6 Inch)<\/strong> pipelines, this thin wafer check valve is widely used in water treatment plants, chemical processing facilities, food industries, pharmaceutical plants, marine systems, HVAC installations, and industrial utility networks.<\/p>\n

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Product Features<\/h1>\n

Ultra-Thin Wafer Design<\/h3>\n

Compared with traditional swing check valves, the thin wafer design offers:<\/p>\n

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  • Reduced installation space<\/li>\n
  • Lower system weight<\/li>\n
  • Easier installation<\/li>\n
  • Lower transportation costs<\/li>\n
  • Compact piping layouts<\/li>\n<\/ul>\n

    This design is particularly valuable in skid-mounted systems and confined plant installations.<\/p>\n

    \n

    CF8M Stainless Steel Construction<\/h3>\n

    The valve body and disc are manufactured from CF8M stainless steel.<\/p>\n

    Benefits include:<\/p>\n

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    • Excellent corrosion resistance<\/li>\n
    • Superior chloride resistance<\/li>\n
    • Long service life<\/li>\n
    • High mechanical strength<\/li>\n
    • Suitable for aggressive process media<\/li>\n<\/ul>\n

      CF8M is commonly used in:<\/p>\n

        \n
      • Chemical plants<\/li>\n
      • Offshore facilities<\/li>\n
      • Pharmaceutical systems<\/li>\n
      • Food processing plants<\/li>\n
      • Desalination projects<\/li>\n<\/ul>\n
        \n

        Viton (FKM) Soft Seat<\/h3>\n

        The Viton seat provides:<\/p>\n

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        • Bubble-tight sealing<\/li>\n
        • Excellent chemical compatibility<\/li>\n
        • Resistance to oils and fuels<\/li>\n
        • High-temperature capability<\/li>\n
        • Low maintenance requirements<\/li>\n<\/ul>\n

          Suitable media include:<\/p>\n

            \n
          • Hydrocarbons<\/li>\n
          • Chemical solutions<\/li>\n
          • Industrial oils<\/li>\n
          • Process water<\/li>\n
          • Air and gas systems<\/li>\n<\/ul>\n
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            Fast Closing Performance<\/h3>\n

            The lightweight disc design allows rapid closure, reducing:<\/p>\n

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            • Water hammer effects<\/li>\n
            • Backflow damage<\/li>\n
            • Pump protection risks<\/li>\n
            • Pipeline shock loads<\/li>\n<\/ul>\n
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              Technical Specifications<\/h1>\n
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              Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
              Product Name<\/td>\nThin Wafer Check Valve<\/td>\n<\/tr>\n
              Valve Type<\/td>\nWafer Non-Return Valve<\/td>\n<\/tr>\n
              Nominal Size<\/td>\nDN150 (6 Inch)<\/td>\n<\/tr>\n
              Pressure Rating<\/td>\nPN16<\/td>\n<\/tr>\n
              Body Material<\/td>\nASTM A351 CF8M<\/td>\n<\/tr>\n
              Disc Material<\/td>\nCF8M Stainless Steel<\/td>\n<\/tr>\n
              Seat Material<\/td>\nViton (FKM)<\/td>\n<\/tr>\n
              Spring Material<\/td>\nSS316<\/td>\n<\/tr>\n
              Design Standard<\/td>\nAPI 594<\/td>\n<\/tr>\n
              Face-to-Face<\/td>\nEN 558 Series 49<\/td>\n<\/tr>\n
              Testing Standard<\/td>\nAPI 598<\/td>\n<\/tr>\n
              End Connection<\/td>\nWafer<\/td>\n<\/tr>\n
              Installation<\/td>\nBetween Flanges<\/td>\n<\/tr>\n
              Temperature Range<\/td>\n-20\u00b0C to +180\u00b0C<\/td>\n<\/tr>\n
              Leakage Class<\/td>\nBubble Tight<\/td>\n<\/tr>\n
              Flow Direction<\/td>\nUnidirectional<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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              Why Choose CF8M Stainless Steel?<\/h1>\n

              CF8M is one of the most widely used stainless steel materials for industrial valves.<\/p>\n

              Corrosion Resistance<\/h3>\n

              Provides excellent resistance against:<\/p>\n

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              • Seawater<\/li>\n
              • Chlorides<\/li>\n
              • Acids<\/li>\n
              • Industrial chemicals<\/li>\n
              • Process fluids<\/li>\n<\/ul>\n

                Mechanical Strength<\/h3>\n

                Maintains structural integrity under:<\/p>\n

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                • Pressure fluctuations<\/li>\n
                • Temperature variations<\/li>\n
                • Continuous operation<\/li>\n<\/ul>\n

                  Hygienic Performance<\/h3>\n

                  Suitable for industries requiring clean processing systems.<\/p>\n

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                  Advantages of Viton Seat Material<\/h1>\n

                  Excellent Chemical Resistance<\/h2>\n

                  Viton performs exceptionally well with:<\/p>\n

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                  • Petroleum products<\/li>\n
                  • Aromatic hydrocarbons<\/li>\n
                  • Synthetic oils<\/li>\n
                  • Industrial chemicals<\/li>\n<\/ul>\n

                    High Temperature Capability<\/h2>\n

                    Compared with NBR or EPDM, Viton offers superior performance in elevated-temperature applications.<\/p>\n

                    Extended Service Life<\/h2>\n

                    The material maintains flexibility and sealing effectiveness over long operating periods.<\/p>\n

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                    Working Principle<\/h1>\n
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                    \"https:\/\/images.openai.com\/static-rsc-4\/vK__AVtQ9q3TO3yy30tN4qupm1GED2oSLEA-UB8g8uN4E1Ce09hiz-QtR9C-k_1CMs1hSsdx-GdwgGNHESfHlWH8Lc6eZ7wK-0AVbzlOluHJieZQDD5Ac9KVlGvsuzjlVOUL82ryO0-kTDytrDzPhChQ10lXe8CPXq1olrrahxKFmvpXmO-T644PM9ADtTL-?purpose=fullsize\"<\/div>\n<\/div>\n<\/div>\n
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                    \"https:\/\/images.openai.com\/static-rsc-4\/RBWe0YupWnvyO9TXsB-6GWNkbAyDQoJVm5bFh1xchQB-GpVxuqchA7rEMtdeSs1JsUQ6k0_Cz48WP4onZQjLjl2LDplGV0dSYZ3kfSIvwdUxWmoA2oG0nVv33hoEbFV-STEIzulwRGz3dm3z3CeqVmYniD1nGiyrJThrH_EBnqsmt3CRu60qcJEdwVVczSm6?purpose=fullsize\"<\/div>\n
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                    4<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

                    The check valve operates automatically using flow pressure.<\/p>\n

                    Opening Cycle<\/h3>\n
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                    1. Fluid enters the valve.<\/li>\n
                    2. Flow pressure pushes the disc open.<\/li>\n
                    3. Media passes through the valve with minimal resistance.<\/li>\n<\/ol>\n

                      Closing Cycle<\/h3>\n
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                      1. Flow decreases or stops.<\/li>\n
                      2. Reverse pressure develops.<\/li>\n
                      3. Spring force pushes the disc closed.<\/li>\n
                      4. Backflow is prevented immediately.<\/li>\n<\/ol>\n

                        This automatic operation protects pumps and process equipment.<\/p>\n

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                        Applications<\/h1>\n

                        Water Treatment Systems<\/h2>\n

                        Commonly installed in:<\/p>\n

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                        • Pump discharge lines<\/li>\n
                        • Filtration systems<\/li>\n
                        • Water distribution networks<\/li>\n
                        • Reverse osmosis plants<\/li>\n<\/ul>\n
                          \n

                          Chemical Processing Plants<\/h2>\n

                          Suitable for:<\/p>\n

                            \n
                          • Chemical transfer systems<\/li>\n
                          • Corrosive fluid handling<\/li>\n
                          • Process pipelines<\/li>\n
                          • Utility services<\/li>\n<\/ul>\n
                            \n

                            Marine & Offshore Industry<\/h2>\n
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                            6<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

                            Used in:<\/p>\n

                              \n
                            • Seawater systems<\/li>\n
                            • Ballast systems<\/li>\n
                            • Cooling circuits<\/li>\n
                            • Utility piping<\/li>\n<\/ul>\n
                              \n

                              HVAC Systems<\/h2>\n

                              Applications include:<\/p>\n