The modern world is inconceivable without pumps. The pump units are used in various industries: construction, wood processing, chemical, oil, cosmetics, in housing and utilities, etc. The most common type of pumps – Centrifugal. They were invented in 1689 by French physicist Denis Daddy. Of Engineering centrifugal pump must operate on the principle of liquid toward the center impeller and the centrifugal force is thrown to the periphery.
The first centrifugal pump was used in the practice in 1732, belongs to the development of Le Demura. The device is attached to the tube vertical shaft, which is immersed in liquid, with the shaft rotates the tube is connected to the shaft connecting rod is rotated. Fluid in a rotating tube is moved by centrifugal force. Careful attention should be paid to the console pumps – a kind of centrifugal pumps with one-sided supply of liquid to the impeller located at the end of the shaft remote from the drive. Such pumps are used for pumping.