How the pressure relief valve works

1. When the pressure exceeds the pressure value set by the high-pressure fan, or the pressure fluctuation range in the high-pressure fan exceeds the set value, When the pressure in the high-pressure fan drops to the safe value, the valve closes slowly, and will not cause the second high-pressure fan pressure fluctuation.

2. When the pressure in the high-pressure fan is reduced to a safe value, the pressure relief valve will be closed slowly, so that the pressure of the high-pressure fan will not fluctuate again.