At Pump Solutions #1 Corporation, we carry all three types of impellers, including open, enclosed, and semi-open. The impellers come in a variety of metals including cast iron, cast iron bronze fitted, stainless steel, and bronze.
Simply put, an impeller is the rotating component within a centrifugal pump accelerating the fluid inside. Velocity achieved from the fluid is later transformed into pressure as the fluid leaves the pump. Impellers are the most influential component within a pump, because they have the ability to change flow, speed, and differential head.
The spaces between the blades of the impeller are called channels. Five to ten channels offer maximum efficiency when there are no solid particles in the fluid. When the fluid has particles, for example waste water, one to three channels work the best.