100l,200l and 300l Air Compressor Non Return Valve

Main Functions Prevents backflow Stops compressed air stored in the tank from returning to the compressor head. Protects the compressor Reduces strain on the motor and pump during startup. Maintains tank pressure Keeps air pressure stored in the receiver tank when the compressor is switched off. Works with the unloader valve Many compressors release the air trapped between the pump and the non-return valve when stopping, making the next start easier