Screw Pumps have an output power of between 15kw(20hp) and 450kw(600hp)and a maximum pressure of 10 Bar. 380 V 3 phase electrics or 300 v 3 phase. Piston pumps, air compressor and screw air compressor . Maximum pressure of 10 bar 3 phase 380 volt, 3 phase power system 3, 3-phase 300 V and 6600 V with easy maintenance.