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                    • API
                    • API Swing Check Valve

                      Product model: H44W/H/Y
                      Nominal Path: NPS 2"~NPS 24"
                      Pressure range: CL150-CL2500
                      Working Temperature: -196 ~+560 Temperature
                      Main material: carbon steel, stainless steel, alloy steel
                      Scope of application: It is suitable for piping of tap water, food, pharmaceutical, electric power, petroleum, liquefied gas, steam, etc.

                      Product overview

                      American Standard Swing Check Valve, also known as one-way valve or check valve, is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline. It belongs to an automatic valve. Check valves are used in pipeline systems. Their main functions are to prevent medium backflow, reverse pumps and their driving motors, and release of medium in containers. Check valves can also be used in pipelines to supply auxiliary systems where the pressure may rise to more than the pressure of the main system.


                      Design code

                      Design criteria: API 603M, ASME B16.34, API 6D

                      Structural length: ASME B16.10

                      Connection standards: ASME B16.5, ASME B16.25

                      Pressure test: API 598

                      Pressure-temperature grade: ASME B16.34


                      Product characteristics

                      1. The product has compact and reasonable structure, reliable sealing and excellent performance.

                      2. Small size and light weight.

                      3. Wide scope of application.

                      4. Disc closure is fast and sensitive.

                      5. Closing impact is small and water hammer is not easy to occur.

                      6. The flow passage is smooth and the fluid resistance is small.


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