Name four rules that will control or eliminate cavitation of a pump

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Engineering

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11 October, 23:06

Name four rules that will control or eliminate cavitation of a pump

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Leland · Answer 1

Four rules that will control or eliminate pump cavitation are:

By reducing the speed of the motor (as in vaporization cavitation of pump) Ensure pump performance within safe limits (as in turbulence cavitation) Free space between impeller and its housing must be 4% or more of the impeller's diameter. (as in vane syndrome cabvitation) Regularly checking the system valves, joints, etc or the cavitation prone regions to ensure its prevention. (as in internal re-circulation cavitation and air aspiration cavitation).

Explanation:

With reference to the above respective rules:

By reducing the motor speed the pump will slow down this will further slow down the flow rate and reduce head pressure. Do not exceed manufacturer performance guidellines as it will lead to pump system failure. Any less than 4% of diameter will lead to the initiation of cavitation Viscous and abrasive materials can lead to erosion and may pave way to air suction and proper check on discharge wall for head pressure should be checked as well to eliminate cavitation