What might indicate that cavitation is occurring in a pump?

What might indicate that cavitation is occurring in a pump?

• A. High efficiency
• B. Pinging sounds
• C. Consistent flow
• D. Stable pressure

Answer: (B)

Cavitation in a pump is indicated by a range of symptoms that arise due to the formation and collapse of vapor bubbles in the liquid being pumped. One of the most telling signs of cavitation is the production of pinging or knocking sounds, often compared to marbles being thrown in the pump. These noises result from the vapor bubbles collapsing with such force that they create pressure waves, which can be damaging to the pump components over time. While high efficiency, consistent flow, and stable pressure may be characteristics of a well-functioning pump, they do not indicate cavitation. High efficiency generally suggests that the pump is operating effectively, while consistent flow and stable pressure indicate that the system is working as intended without disruptions. In contrast, the presence of pinging sounds clearly points to an issue, specifically cavitation, which requires attention to prevent potential damage to the pump and ensure operational reliability.

Cavitation in a pump is indicated by a range of symptoms that arise due to the formation and collapse of vapor bubbles in the liquid being pumped. One of the most telling signs of cavitation is the production of pinging or knocking sounds, often compared to marbles being thrown in the pump. These noises result from the vapor bubbles collapsing with such force that they create pressure waves, which can be damaging to the pump components over time.

While high efficiency, consistent flow, and stable pressure may be characteristics of a well-functioning pump, they do not indicate cavitation. High efficiency generally suggests that the pump is operating effectively, while consistent flow and stable pressure indicate that the system is working as intended without disruptions. In contrast, the presence of pinging sounds clearly points to an issue, specifically cavitation, which requires attention to prevent potential damage to the pump and ensure operational reliability.