Although the centrifugal force depends on the speed at the periphery of the impeller and the density of the liquid, the energy applied per unit mass of liquid is independent of the density of the liquid. Therefore, a given pump operating at a certain speed and manage a defined volume of liquid, the energy applied and transferred to liquid (in pascals, Pa, m water column of pie-lb/lb oo mca liquid) is the same for any liquid regardless of their density. Traditionally provided by the pump pressure in meters of water column or pie-lb/lb is expressed in meters or feet and why it is generically known as “high”, and even more, because the first bombs were engaged up well water from a certain depth (or height).

Centrifugal pumps are widely used in industry because they are suitable for almost any application. The most common are those built under regulation DIN 24255 (in form and hydraulic) with a single runner, covering capacities up to 500 m³ / h Heads up to 100 meters with standard speed electric motors. These pumps are usually installed horizontally, but may also be vertical and to reach greater heights are made available several successive impellers in the same pump body. This will accumulate the partial pressures that offer each one of them. In this case we speak of multi-stage or multistage pump, thus being able to reach heights of around 1200 meters for boiler feed systems.

Constitute not less than 80% of world production of bombs, because it is best to move more of liquid positive displacement pump.

There are no valves in centrifugal pumps, the flow is uniform and free of low frequency pulses.