Used most often when pressure is needed in a system or fluid must be moved upward, it consists of a rotating wheel with vanes, inside a casing, for example a centrifugal pump. The fluid that goes into the center of the spinning impeller is flung to the outer edges by use of centrifugal force, which gives velocity to the fluid due to the rotational speed of the impeller. The flow of the fluid is directed through the pump casing discharge outlet by the casing around the impeller. An impeller can be used with a number of fluids.
The part of the rotating element of a dynamic compressor that imparts energy to the flowing medium by means of centrifugal force. It consists of a number of blades mounted so as to rotate with the shaft. ( 060)
a rotating component of a pump , ussualy made of iron, steel, aluminum or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by forcing the fluid outwards from the centre of rotation
A disk with multiple vanes. It is attached to the pump engine or motor and is used to create the centrifugal force necessary for moving water through the pump casing.
A circular pump part with canes that rotate to provide centrifugal force for propelling water in the circulation system. The impeller spins on the end of the electric motor shaft and is the only moving part of a centrifugal pump. Closed , semi-open or open impellers are used. Closed impeller: A pump impeller with the vanes contained on both sides and an opening in the center (the eye). Water enters the eye and is centrifugally forced out the end of the closed impeller. Semi- open impeller: A pump impeller with the vanes exposed on one side; the open vanes face the volute wall, forming chambers through which the water flows. Open impeller: A pump impeller with exposed vanes like a water wheel. (Rarely used in pumps manufactured for use in the pool and spa industry). Pressure Differential: The difference in water pressure between two points in a hydraulic system.
A rotating disc on a shaft at the center of a centrifugal pump housing. The slanted vanes of a rotating impeller impart the centrifugal force that expels the water from the pump. Vaned, circulating member of the centrifugal pump that transmits motion to the water.