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  • Back Pressure Valve Profile
    Jan 16, 2018

    Back pressure valve through the built-in spring elastic force to achieve action: When the system pressure is lower than the set pressure, the diaphragm in the spring force to block the pipeline; when the system pressure is greater than the set pressure, the diaphragm compression spring, the pipeline Connected, liquid through the back pressure valve. Backpressure valves maintain the pressure required on the line in the event of a pressure build-up on the line or in the equipment container, allowing the pump to deliver flow normally. The other end of the pump due to gravity or other functions often appear siphon phenomenon, then the back pressure valve can reduce the siphon flow and pressure fluctuations. For metering pumps and other volumetric pumps operating under low system pressure, there will be excessive delivery. In order to prevent similar problems, it is necessary to make the inlet and outlet of the metering pump have a back pressure of at least 0.7 Bar, generally, the back pressure valve is installed at the outlet of the metering pump to achieve the purpose.