... 4-stage compression, water cooling typ Main paramenters of compressor:Model No.: WWS-4.5/0.1-150Type: W ... Explosion-proof class: dCT4;Protection class: IP55This compressor package includes bare shaft compressor, skid, air compressor, cooling system, separator, safety valve, intake ... system pressure converter, electric motor and etc. . Nitrogen Compressor For Chemical Plant And Electric Power Station