15HP to 20HP Intake Valve Oil Sight Glass resulting in more efficiency at

resulting in more efficiency at higher PSI  ranges up to 232 PSI if

Having a high-quality air compressor filter will protect your system from particulates

whilst helping to ensure the compressed air exiting the compressor is free of oil

centrifugal force to operate the compressor

for two main purposes

15HP to 20HP Intake Valve Oil Sight Glass resulting in more efficiency atThe air compressor inlet valve regulates the capacity of your rotary screw compressor. The air compressor unloader valve regulates the amount of air that is sucked in by your air compressor. By opening and closing the air intake, the capacity of a rotary air compressor is regulated.