Purpose of relief valve in a reciprocating pump is to___________________?
Correct answer: B. Protect the pump against developing excessive pressure
- A. Facilitate unidirectional flow of liquid
- B. Protect the pump against developing excessive pressure
- C. Reduce the discharge pressure
- D. Control the rate of discharge
Explanation
A reciprocating pump is a positive-displacement pump, so a blocked discharge can make pressure rise rapidly. The relief valve opens at a set pressure to protect the pump and piping from excessive pressure.
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