Centrifugal water pumps use centrifugal force to pressurize and move water from the inlet to the outlet. A rotating set of vanes (called an 'impeller') is spun by the pump shaft. As water is forced through the impeller, rotational energy is transferred from the impeller to the water, which gains velocity and pressure through the centrifugal force applied and is flung from the impeller. The volute (a spiral-shaped case) funnels the now-pressurized water to the outlet. Image below shows clockwise rotation as viewed from the motor mound. Ningbo Guanghan Solar Pump Industry is a factory specialized in manufacturing solar submersible pumps and solar surface pumps. The head office was established in 1989 in Daxi Town, Wenling City, the hometown of water pumps in China, and a branch factory was established in Jiangshan Town, Ningbo City in 2019. It is located near the highway intersection, very close to Ningbo Port and Shanghai Port, and the transportation is very convenient.