As far as pumps go, centrifugal pumps are some of the simplest around, both in construction and in execution. They work by simply relying on the motor’s kinetic energy to ensure the movement of liquids. The axis of the pump is outfitted with an engine, which itself attaches to an impeller. The impeller is rotated by the movement of the axle and then the water or other liquid moves from the entry point to the exit point, with little muss or fuss.
Most pumps of a centrifugal nature are used for strict water, however, there are some liquiflo pumps which are also used specifically for other such things of a liquid nature such as hazardous chemicals, oil, and liquid sewage. Some pumps can even be used functionally in reverse, where the impeller thus acts as a turbine instead of a pump. The rotational energy of the impeller acts to power the device from the energy generated by the water.
The main advantage of using centrifugal pumps is the previously mentioned fact that they are so simple in nature. They do not rely on many moving parts which may break down nor do they rely on valves, which may also malfunction or become clogged.
However, as with anything in life, there are also disadvantages to using centrifugal pumps. The main drawback is that because they are centrifugal in nature they have virtually no sucking power in which to drain liquid. The pump will need to be placed underneath the liquid or primed before it can be used. Without doing either of these two things, there will be no realistic way for the pump to work.
For most any uses which would fall under the category of household needs or light industrial usage, a centrifugal pump will be fine. Another solution will be needed for heavy industrial usages, however.