KL0311 4 way electronic valves for air compressor Voltage:DC12V,24V.AC110V,220V sealing:viton KL0311 4 way ... in air compressor to control loading,off-loading,pressurizing,decompression,inlet,exhaust automatically.It has the character of high pressure-proof,flexible ... .Order Code:size: KL0311 4 way electronic valves for air compressor/DC12V,24V.AC110V,220V