Centrifugal pumps - volutes or turbines - rely on rotating impellers to move water through a piping system. The rotating impeller increases the water pressure by efficient conversion of kinetic energy. As water is sucked into the pump, the rotating impeller releases kinetic energy into the water. As water flows outward through the impeller blades, kinetic energy (also known as velocity) is converted into pressure as the water moves outward. Depending on the position and design of the impeller blades, the water will obtain different pressures.

Because centrifugal pumps can be used to perform different functions in a piping system and may require different water pressure levels, there are two general purpose pumps that can control and maintain water pressure differently. Two typical types of centrifugal pumps are turbo pumps and volute pumps.

What is a turbo pump? In turbopump, multiple diffusion blades surround the rotating impeller. When water is released from the center (or eye) of the impeller, it will rotate outward as the impeller rotates. The impeller is surrounded by various diffusion blades, and the channel gradually widens and opens into a round or spiral shell. The main function of the diffusion blade is to slowly reduce the speed of the water, thereby converting the speed into pressure. Once inside the housing, the water hovers or spirals toward the nozzle and flows out of the pump.

What is a volute pump? The main difference between turbo pumps and volute pumps is the presence or absence of diffusion blades. In the volute pump there are no diffusion blades, but the housing is spiral shaped. The form of the shell reduces the water speed (and final pressure) by creating an equal flow of water as it moves around the spiral toward the nozzle. The spiral is sometimes called a volute, hence the name of this special type of pump.

The above content introduces what is a turbo pump and what is a KNOLL volute pump. In addition, Shenzhen Oudejie Technology specializes in selling new original German imported KNOLL Kono pump, and promises to sell products are new original imported, while providing our customers with quotation, selection, product information and other services.