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Type Safety Valve / Back Pressure Valve
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Snowate
Hebei, China
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Safety Valve
The diaphragm and valve core are pressed against the valve seat by the internal spring. When the pressure within the system pipeline exceeds the preset pressure, the diaphragm and the valve core are pushed up, allowing medium to be discharged to the return pipe and container. which can be adjusted on site. The pressure can be set within a range of 0–1.0 MPa on site by adjusting the screw and using the pressure gauge in the pipeline. The relief pressure is generally set to be 0.1–0.2 MPa higher than the system pressure. The adjustment of the safety valve's pressure should not exceed the pump's maximum pressure. The installation should be as close as possible to the pump's outlet, and there should be no valve between the pump and the safety valve to protect the safety of the pump and the normal operation of the system.
Back Pressure Valve
The valve is installed on the positive pressure discharge pipeline of the metering pump or diaphragm pump, to prevent the occurrence of a siphon phenomenon. It helps eliminate any changes in the dosage amount due to fluctuation in the dosage point pressure, ensuring the pump's dosage accuracy. On site, the protective cap on the adjusting screw can be removed to adjust the pressure to the desired level with the help of the pressure gauge in the pipeline. The back pressure can be set within a range of 0-0.6 MPa through the adjusting screw. When used
in conjunction with a pulse damper, this valve can reduce the damage caused by water hammer to the system, maintain a certain constant pressure from the pump outlet to the back pressure valve, and keep the system flow rate constant.

Material UPVC, PP, CPVC, PVDF, SUS304, SUS316L
Working pressure 0–1.0 MPa, 0.2–1.6 MPa
Caliber size DN15, DN20, DN25, DN32, DN40, DN50, DN65
Connection method bonding, hot melt welding, threaded, flange
Diaphragm material PTFE+rubber composite

Characteristics of Type Safety Valve / Back Pressure Valve

  1. Release the pipeline pressure to ensure the stability of the  system pressure.
  2. Protect the safety of the pump and the normal operation of the system.
  3. Used in conjunction with a pulse damper to reduce the harm of water hammer to the system and achieve superior low-vibration adjustment effects.
  4. Reduce the peak value of flow rate fluctuations and  protect the pipeline system from pressure fluctuations.
  5. The diaphragm adopts advanced PTFE + rubber compound technology, making it suitable for almost all corrosive fluids, and provide reliable and leak-free sealing.



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