Before turning on a positive displacement pump, suction and discharge valves should be in which positions?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the ADEQ Wastewater Treatment 1 Test. Study with quizzes, multiple-choice questions, and detailed explanations. Ace your exam!

Multiple Choice

Before turning on a positive displacement pump, suction and discharge valves should be in which positions?

Explanation:
Priming a positive displacement pump requires a clear path for liquid to fill the pump and for any trapped air to escape. Having both suction and discharge valves open provides that path: liquid can be drawn into the pump through the suction side, and it can flow out through the discharge side so air isn’t trapped in the pump cavity. This prevents dry running and cavitation as the pump comes up to speed. Once the pump is primed and running, you would typically manage the discharge to control the flow, while keeping the suction source available for normal operation.

Priming a positive displacement pump requires a clear path for liquid to fill the pump and for any trapped air to escape. Having both suction and discharge valves open provides that path: liquid can be drawn into the pump through the suction side, and it can flow out through the discharge side so air isn’t trapped in the pump cavity. This prevents dry running and cavitation as the pump comes up to speed. Once the pump is primed and running, you would typically manage the discharge to control the flow, while keeping the suction source available for normal operation.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy