1.3.7kw pump controller drive 3 phase AC pump 2.pump inverter used for irrigation 3.efficiency 98% 4. without ... installation conditions, different types of pump such as centrifugal pump, axial flow pump, mixed-flow pump or deep-well pump can be used. Features · ... thunder, over flow and dry running). · ·The main circuit adopts intelligent power module(IPM), with high reliability and high efficiency 98 ...