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Several different types of pump impellers Flexible impeller of cooling system pump of an outboard engine (1 euro cent coin for comparison, diameter 16.25 mm). An impeller is a rotating component of a centrifugal pump that accelerates fluid outward from the center of rotation, thus transferring energy from the motor that drives the pump to the fluid being pumped.
The hot tub pump and hot tub heater represent most of the power consumption in a hot tub and vary in use of power depending on their size. [ 4 ] Energy efficiency of portable hot tubs has been studied by the Pacific Gas and Electric Company (PGEC) , [ 5 ] leading to industry responses [ 6 ] and interest from both the California Energy ...
A flexible impeller pump is a positive-displacement pump that, by deforming impeller vanes, draws the liquid into the pump housing and moves it to the discharge port with a constant flow rate. The flexibility of the vanes enables a tight seal to the internal housing, making the pump self-priming , while also permitting bi-directional operation.
It is the largest hot tub manufacturer in Europe [1] with eight factories, the largest being in Italy. [3] The company was founded in 1915 by seven Italian immigrant brothers from the Jacuzzi family in Berkeley, California. [4] It developed a variety of products including pumps for agricultural use.
The sealed units used in home applications often have the motor rotor, pump impeller, and support bearings combined and sealed within the water circuit. This avoids one of the principal challenges faced by the larger, two-part pumps: maintaining a water-tight seal at the point where the pump drive shaft enters the pump body.
Pump and volute casing. A volute is a curved funnel that increases in area as it approaches the discharge port. [1] The volute of a centrifugal pump is the casing that receives the fluid being pumped by the impeller, maintaining the velocity of the fluid through to the diffuser. As liquid exits the impeller it has high kinetic energy and the ...