Sanitary centrifugal pumps are used to transport and meter solutions, slurries, and colloids of food and agricultural materials in operations such as food processing that require cleanliness.
The use of centrifugal pumps in sanitary applications can provide many important benefits, including quieter operation than positive displacement pumps, low maintenance for greater operational efficiency, and a simple design.
Although often mistook as inefficient, sanitary centrifugal pumps are actually reliable and robust equipment for hygienic applications. These pumps have the capability to transfer large amounts of low viscosity fluids quickly. Certain size pumps are available that are able to move a larger quantity of gallons per minute than other smaller food grade pumps.
The operation of a centrifugal pump is based on a rotating impeller, which converts kinetic energy into pressure or velocity that is needed to pump the fluid. The product enters the pump at the center of the impeller rotation and, owing to centrifugal force, moves to the impeller periphery. At this point, the liquid experiences maximum pressure and moves through the exit to the pipeline.