The pump driven by a DC motor, draws water from wells or rivers, then pours water into the reservoir, storage tank or directly to irrigation systems and fountain systems. Based on the requirements and installation conditions, screw pump and multistage impeller pump can be used.
          In solar pumping systems, pump selection is essential, which directly affects the economy and stability of the whole system. Submersible pumps which have widely application and speed-regulating range, are common in solar pumping systems, it can increase working time and water flow rate of the solar pumping system. If the users require low head and high water flow, can choose multistage impeller pump, while they require high head and low water flow can be chosen screw pumps.