A positive displacement pump (PDP) is operating in an open water system.
PDP parameters are as follows:
PDP speed = 480 rpm
PDP discharge pressure = 1,000 psig
PDP suction pressure = 10 psig
PDP flow rate = 60 gpm
Which one of the following changes will cause PDP flow rate to exceed 100 gpm?
A. A second identical discharge path is opened.
B. PDP speed is increased to 900 rpm.
C. PDP suction pressure is increased to 40 psig.
D. Downstream system pressure is decreased to 500 psig.
Show Answer
Answer: B
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