... air compressor Voltage:DC12V,24V.AC110V,220V sealing:viton KL0311 4 way electronic valvesMainly used in air compressor to control loading, ... because of piston construction and viton seal.It is 4/2 way solenoid valve (one inlet port,2 working ports,one exhaust ... line simple. this valve is with simpleconstruction,small size,good sealing,easy fixing.Order Code:size: KL0311 4 way electronic valves for air ...