Discover the power of centrifugal pumps
Drawing on the principles of rotordynamics, centrifugal pumps pressurize pools of standing water through the use of rotary impellers, which causes the water to enter and flow through the pump before exiting through a drainage system. The centrifugal pump typically requires a preexisting piping or draining system to be in place at the point of usage in order to function properly.
The first centrifugal pump design appeared in the 1400s, and modern examples still draw on the same basic principles. Today, though, these pumps are powered by electricity or gasoline rather than by hand as they were centuries ago.
How Centrifugal Water Pumps Work
The basic operational principle behind a centrifugal pump is this: at the pump's outlet, impellers convert potential energy into kinetic energy. This kinetic energy is then sent into the standing water by means of a centrifuge. In turn, the water is sucked into the pumping system and expelled through outlet piping or, in some cases, into a holding tank.
Types of Centrifugal Pumps
The two main classifications of centrifugal pumps are vertical centrifugal pumps and multistage centrifugal pumps. Vertical machines use unique shaft and support setups to allow the sump mechanism to function, creating a vertical flow action. Multistage centrifugal pumps, on the other hand, simply use more than one impeller to drain pools of standing water and are used for exceptionally heavy-duty jobs.
Self-priming centrifugal pumps are capable of handling solids in addition to liquids. Typically, they feature high heads, engine-driven pumps and end suction for disposing of waste.
Like vacuum pumps, centrifugal pumps are available in a wide range of specific configurations. However, in all cases, they feature these main working parts: an impeller and a shaft (which combine to form the so-called "rotating component"), and a standstill component made up of bearings, a casing and a cover. These two elements combine to force standing water to move in a controlled, contained and predictable way.
Centrifugal pumps are an excellent option if you have to pump water away from an area with a preexisting drainage system. They are versatile and available in a full range of sizes and pounds per square inch (p.s.i.) ratings.