Flow Control Valve,Multifunctional flow control valve,Flow Control Valves Chongqing Xingjida Import and Export Trade Co., Ltd. , https://www.xjvalvestem.com
Centrifugal pump introduces the main parts
Centrifugal pump of the main parts: (1) pump casing axial split and radial split two. Most single-stage pump casing is volute, multi-stage pump radial split shell is generally a circular shell or a circular shell. In general, the inner cavity of the volute casing is a spiral type liquid channel for collecting the liquid thrown from the impeller and leading it to the diffuser to the pump outlet. Pump housing to withstand all the pressure of work and liquid heat load. (2) Impeller The impeller is the only working component, the pump works on the liquid through the impeller. Impeller type closed, open, semi-open three. Closed impeller blades, front cover, rear cover composition. Semi-open impeller blades and cover from the composition. Open impeller blades only, no front and rear cover. Closed impeller high efficiency, low efficiency open impeller. (3) Seal ring The seal ring is used to prevent internal and external leakage of the pump. The seal ring made of wear-resistant material is set on the front and rear covers of the impeller and the pump casing, and can be replaced after being worn. (4) shaft and bearing pump shaft fixed impeller, one end mounted coupling. According to the size of the pump, the bearings can use rolling bearings and plain bearings. (5) Shaft seal There are two general mechanical seal and packing seal. General pumps are designed to both packing seal, but also can be installed mechanical seal.