Water Cooled Air/ Gas Compressor is of double acting horizontal balanced opposed cross head type and built in one two and three rows each of the two opposed cylinder. The Compressor is normally driven by an electric motor and comes in water cooled construction. The Compressor is perfectly balanced as the two pistons in each row move in opposite directions. Water Cooled Air/ Gas Compressor is designed with gear type lubricating oil pump to feed oil to the main bearings, connecting rod bearings and crossheads.