Safety valve
The diaphragm and valve core are pressed against the valve seat by the internal spring. When the pressure in the
system pipeline exceeds the preset pressure, the diaphragm and valve core are lifted up, and the medium leaks to
the return pipe and container. The adjustment screw can be adjusted on site. Use the pressure gauge in the
pipeline to set the pressure in the range of 0~1.0Mpa. The relief pressure is generally set 0.1~0.2Mpa higher than
the system pressure. The pressure regulation of the safety valve is not allowed to exceed the maximum pressure
of the pump. The installation is generally as close to the outlet of the pump as possible. 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
Installed on the positive pressure discharge line of the metering pump or diaphragm pump to prevent the
occurrence of siphoning and eliminate the maximum change in dosing caused by pressure fluctuations at the
dosing point, thereby ensuring the dosing accuracy of the pump. Remove the protection on the adjustment screw
on site. Cap, rotate the adjusting screw, and use the pressure gauge in the pipeline to adjust to the required
pressure. The back pressure can be set in the range of 0~0.6Mpa through the adjusting screw. Used in conjunction
with a pulse damper to reduce damage to the system caused by water hammer, maintain a certain constant
pressure from the pump outlet to the back pressure valve, and maintain a constant flow rate in the system.
Technical Parameters
Material: UPVC, PP, CPVC, PVDF, SUS304, SUS316L;
Working pressure: 0~1.0MPa, 02~16MPa
Caliber size: DN15, DN20, DN25, DN32, DN40, DN50, DN65; Connection method: bonding, hot melt welding, thread,
flange;
Diaphragm material: PTFE+rubber composite
Dimensions
