A vortex pump (also called a vortex pump) is a vane pump. It is mainly composed of impeller, pump body and pump cover. The impeller is a disc, and the blades on the circumference are evenly arranged radially. An annular flow channel is formed between the pump body and the impeller, and the suction port and the discharge port are both on the outer circumference of the impeller. There is a partition between the suction port and the discharge port, thereby separating the suction port and the discharge port. It is suitable for occasions requiring small flow (1-40 cubic meters/hour) and high head (up to 250 meters).