... ,220V sealing:viton KL0311 4 way electronic valvesMainly used in air compressor to control loading,off-loading,pressurizing,decompression,inlet,exhaust automatically ... -proof,flexible acting,low demand of media purity because of piston construction and viton seal.It is 4/2 way solenoid ... fixing.Order Code:size: KL0311 4 way electronic valves for air compressor/DC12V,24V.AC110V,220V