The Centrifugal Pump is the machine most commonly used to move liquids from one place to another. As such it is a particularly instructive unit with which to introduce students to the whole subject of rot-dynamic fluid machines. Discovering the relationship between head, flow. Pump Performance: 0.5 hp, (20-70) L/min, (16-22) m, single- phase, 220V. /50Hz. two pressure gauge placed at the experiment.