KL0311 4 way electronic valves for air compressor Voltage:DC12V,24V.AC110V,220V sealing:viton KL0311 4 way ... electronic valvesMainly used in air compressor to control loading,off-loading,pressurizing,decompression,inlet,exhaust automatically ... the cost of material and manufacturing,also can make the pipe line simple. this valve is with simpleconstruction,small size,good ...