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  • UPVC CPVC PPH PVDF Back Pressure Valve Pvc Relief Pressure Safety Valve

    Back Pressure Valve

    UPVC CPVC PPH PVDF Back Pressure Valve Pvc Relief Pressure Safety Valve

    Material:UPVC, PP, CPVC, PVDF, SUS304, SUS316L;

    Working Pressure: 0~1.0MPa, 0.2-1.6MPa

    Size: DN15, DN20, DN25, DN32, DN40, DN50, DN65;

    Connector :Socket, Thread(NPT, BSPF, PT), Fusion welding, Welding

    Diaphragm material : PTFE+ Rubber Compound

      Products Features

      Release the pressure of pipeline to ensure the stability of system pressure.
      Protect the safety of the pump and the normal operation of the system.
      Used in conjunction with pulse dampers to reduce the harm of water hammer on the system, to achieve superior low vibration regulation; reduce the peak of flow rate fluctuations, to protect the piping system from the impact of pressure fluctuations.
      The diaphragm adopts advanced PTFE+glue composite technology, which is suitable for almost all corrosive fluids, with reliable sealing and no leakage.

      What is safety valve used for?

      Diaphragm, spool by the internal spring pressure against the valve seat. When the pressure in the system pipeline exceeds the preset pressure, the diaphragm, spool is jacked up. The medium leakage to the return pipe and the container. In the field it can be adjusted through the screws with the help of the pressure gauge in the pipeline in the 0-1.0Mpa range of pressure settings, the relief pressure is generally set higher than the system pressure of 0.1-0.2Mpa. The safety valve regulator is not allowed to exceed the maximum pump pressure. To install generally as close as possible to the pump outlet. There should not be any valves between the pump and the safety valve, to protect the pump safety and normal operation of the system. 

      What is back pressure valve used for?

      It is installed in the positive pressure discharge pipeline of metering pump or diaphragm pump. Which prevent the occurrence of siphon phenomenon, to eliminate the dosage changes caused by pressure fluctuations in the dosage point, so as to ensure the accuracy of pump dosage. In the field we remove the protective cap on the adjusting screws, rotate the adjusting screws, and adjusted to the required pressure with the help of a pressure gauge in the pipeline. It can be adjusted by adjusting the screws in the range of 0-0.6 Mpa to set the back pressure. Which can be used in conjunction with pulse damper to reduce the damage of water hammer on the system. To maintain a certain constant pressure from the pump outlet to the back pressure valve, and to maintain a constant flow rate of the system.

      What is the difference between a pressure reducing valve and a back pressure valve?
      Back pressure valve, is a kind of valve whose main purpose is to protect the safe operation of the pump. Back pressure valves ensure the safe operation of the pump by controlling the inlet pressure distribution of the pump.
      Pressure reducing valves, or automatic regulating valves, are primarily used to regulate the pressure of a system. Pressure reducing valves are often used in piping and systems that need to be able to maintain a constant lower pressure in certain equipment where there is a restriction on higher pressures.
      Back pressure valve is mainly used to protect the safe operation of the pump, is a kind of "automatic" way of regulating the valve. while the pressure reducing valve is mainly used to regulate the pressure of the system, there are "manual" and "automatic" two ways. Two ways. In addition, the common back pressure valve is used at the inlet of the pump, while the pressure reducing valve is used at the outlet of the system, mainly because of their different main functions.




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