Check Valve

Check valve refers to the valve that opens and closes the disc by itself depending on the flow of the medium itself to prevent the reverse flow of the medium. It is also known as the reverse check valve, reverse flow valve, one-way valve, and back pressure valve.
Operating principle:
The principle of check valve is very simple, as shown in the figure, the medium flows in the specified direction, when the flow pressure exceeds the check valve opening pressure, the platen is pushed open under the action of fluid pressure, so as to connect the flow of pipeline medium. Conversely, when conduit medium is backward reflux, below fluid pressure drive, it is pressed on check wide adjust a body, right now the valve is closed, cut off conduit medium to flow thereby.
Classification:
According to the structure of the division, it can be divided into lifting check valve, swing check valve and butterfly check valve three kinds. Lift check valves can be divided into vertical and straight - through two types. Swing check valves are divided into single, double and multi - valve three types. Butterfly check valve is divided into butterfly double flap and butterfly single flap. The above check valve in the form of connection can be divided into screw connection, flange connection, welding and clamp connection four.
About us:
China Sinpo Valve manufactures high quality check valve. Welcome to inquiry and place an order! We can also produce products according to your specific requirement.
    • Check Valve 800WOG

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      Check Valve 800WOG

      SS Spring Check Valve Screw Type PN16 PN25 800WOG Feature: suitable for installation in horizontal and vertical Structure: Lift type check valve Size: 1/2”-4” Media: Water, oil, gas, etc Material: WCB, Stainless steel, etc DIMENSIONS

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    • Check Valve Kitz

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      Check Valve Kitz

      Feature: Swing Disc, Using dewaxing precision casting
      Structure: Swing Type
      Media: Water, oil, gas, etc

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    • Check Valve Class150

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      Check Valve Class150

      Check Valve Class150 is to point to rely on medium itself flow and automatic open, close valve disc, which is used to prevent medium backflow. It is also known as reverse check valve, one-way valve, countercurrent valve, and back pressure valve.

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    • Check Valve 600lb

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      Check Valve 600lb

      The body material variety of our Check Valve 600lb is complete, can be reasonable selected according to the actual working condition or user requirements, which also is suitable for a variety of pressure, temperature and media working conditions.

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    • Cast Iron WCB SS Double Disc Dual Plate Wafer Check Valve PN16 PN25 PN40

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      Cast Iron WCB SS Double Disc Dual Plate Wafer Check Valve PN16 PN25 PN40

      Cast Iron WCB SS Double Disc Dual Plate Wafer Check Valve PN16 PN25 PN40 Standards: Design & Manufacture: API6D, JB/T8937, BS 1868 Face to Face: API6D, DIN3202, JB/T8937 Flange Dimensions: ASME B16.5, JB/T90, DIN2543, GB/T13402 Pressure & Temperature: ASME B16.34,...

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Yuhuan Sinpo Valve Co.,LtdTel: +86-576-89903137