Second, the centrifugal pump works: centrifugal impeller is rotated and the water use centrifugal force generated to work. Before starting a centrifugal pump, pump, pump casing must be filled with water and suction tube, then start the motor, so that the shaft drives the impeller and water for high-speed rotation, water under the effect of centrifugal force, left behind the outer edge of the impeller, lying centrifugal pumps, the volute casing pump flow path inflow pressure water pipe. At the center of the pump impeller, the centrifugal force due to water forms a vacuum after being thrown in the pool of water absorption at atmospheric pressure will be pressed into the pump casing, impeller by constantly rotating, so that the water in the impeller the role of continuous inflow and outflow, achieve the purpose of conveying water. 1. Impeller The impeller is a core component of the pump, water pump mechanical seal, it can gain momentum and generate water flow. Impeller by the blades, hub caps and composition, shown in Figure l-2. When selecting impeller materials, in addition to the mechanical strength under centrifugal force to be considered, but also consider the wear-resistant materials and corrosion resistance. At present, most of the impeller made of cast iron, cast steel and bronze. Centrifugal pumps, IS125-100-400B, horizontal centrifugal pump provided by the Shijiazhuang-school Pump Company. Centrifugal pumps, IS125-100-400B, horizontal centrifugal pump is Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, Contact: Manager Xu.