A motor-driven centrifugal pump is operating normally in a closed cooling water system.
When the pump discharge flow control valve is opened further, the pump is unable to provide the desired volumetric flow rate due to cavitation.
Which one of the following will enable a higher pump volumetric flow rate before cavitation occurs?
A. Remove the existing motor and install a motor with a lower horsepower rating.
B. Remove the existing motor and install a motor with a higher horsepower rating.
C. Remove the existing pump and install a same-capacity pump with a lower minimum net positive suction head requirement.
D. Remove the existing pump and install a same-capacity pump with a higher minimum net positive suction head requirement.
Show Answer
Answer: C
Share your understanding of this question with the correct explanation.