B semester

There are two main groups of pumps: the pumps and the pumps. The 1st group is subdivided into pumps in which a piston moves up and down, and pumps in which the moving part rotates. The rotating parts can be gears, lobes, , etc. The centrifugal pump, on the other hand, consists of an/a which rotates at high speed inside the pump . The most common type of centrifugal pump is the which has taken its name after the spiral case which surrounds the impeller. In the pump the impeller is surrounded by vanes which are stationary. Because of this slight similarity to a turbine, it is often called turbine pump. The pump is a combination of the other two types. With centrifugal pumps we can have high capacities and high pressure which is needed in cases such as boiler feeding.