The minimum pressure valve of the compressor has two main effects:

1 prevent pressure leakage

Air compressor oil is lubricated by the machine itself is no pressure difference, oil pump auxiliary additional, with the compressor at no load condition, still need a certain pressure to maintain the oil circulation, so the intake valves are relativelyclose, while the minimum pressure valve to prevent pressure leakage, so that oil circulation.

The 2 buffer

The minimum pressure valve is the role of the buffer, with the compressor at the loading instant, we assume that the emissions into the atmosphere, high pressure air compressor internal separation before and after the separation of the difference will all add in the separator, the separator core damage, the minimum pressure valve can play the role of protection.