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PUMP :CLASSIFICATIONS AND WORKING PRINCIPLES A pump is a device which moves fluids by mechanical action, from one place to the other. It is, essentially, the earliest form of machine, dating back to ancient Egypt. CLASSIFICATIONS Generally Pumps classification done on the basis of its mechanical configuration and their working principle. Classification of pumps mainly divided into two major categories: 1.. Dynamic pumps / Kinetic pumps 2. Displacement Pumps / Positive displacement pumps 1. Dynamic Pumps Dynamic pumps impart velocity and pressure to the fluid as it moves past or through the pump impeller and, subsequently, convert some of that velocity into additional pressure. It is also called Kinetic pumps Kinetic pumps are subdivided into two major groups and they are centrifugal pumps and positive displacement pumps. Classification of Dynamic Pumps A. Centrifugal Pumps A centrifugal pump is a rotating machine in which flow and pressure are gen