Gas ballast pneumatic valve work 2)

when gas pneumatic valve internal pressure is greater than the external pressure, gas town of pneumatic valve to open, the inside of the pump cavity pump cavity gas condensate gas partial pressure, when pressure pump before the temperature of saturated steam pressure of compressed air outlet pressure has been achieved, condensate gas emissions; Pneumatic valve internal pressure than the outside when the gas pressure, gas pneumatic valve shut off. Another function of gas pneumatic valve is the limit of vacuum pressure recovery. Although we sometimes use it to extract the general air, contain the non-condensable gas, the general gas pneumatic valves are closed, but in the long run, oil, contains some small amount of air pollution can be gradually with the relevant institutions condensate gas with no air pressure drive pump oil can replace with new, or pump oil steam heating evaporation liquid, to restore the original pump pressure limit, but angry town pneumatic valve vacuum pump, as long as the open - The limit of hours vacuum pressure can be restored.