Dr subhash technical campus Centrifugal pumps

Centrifugal Pumps - Cavitation

• When the pressure falls below the vapour pressure of the liquid at a
• given temperature, boiling occurs and small bubbles of vapour are formed.
• These bubbles will grow in the low-pressure area and implode when they
• are transported to an area of pressure above vapour pressure. The term
• given to this local vaporisation of the fluid is Cavitation.

Centrifugal Pumps - Cavitation

• The collapsing of the bubbles is the area of Cavitation we are concerned with, as extremely high pressures are produced, which causes noise and erosion of the metal surface.
• The area of pipeline ...
• This cavitation effect...
• To reduce cavitation ...
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