Inspection of a low pressure gear pump for...

🔍 Key Concepts

• Cavitation in pumps – where vapor bubbles usually form and collapse in relation to inlet vs. discharge side • Pressure conditions inside a gear pump – what area has lowest absolute pressure and is most susceptible to cavitation damage • Wear pattern characteristics – localized vs. even wear, and what that suggests about the cause

💭 Think About

• In a low pressure gear pump, where is the fluid pressure the lowest – near the inlet or near the discharge, and how does that relate to cavitation formation? • Does cavitation typically cause uniform wear everywhere, or more concentrated pitting/erosion in specific locations? Think about where bubbles are most likely to collapse. • Which side of a gear pump experiences suction conditions, and how would that affect where the most cavitation-related damage appears?

✅ Before You Answer

• Identify which side of the housing is under suction (lowest pressure) during normal operation. • Decide whether cavitation damage tends to be localized or evenly distributed around the pump periphery. • Consider whether matched machined gear sets would cause general uniform wear or are more related to normal contact patterns rather than cavitation-specific damage.

Inspection of a low pressure gear pump for cavitation will usually be indicated by a wear pattern __________.

along the inlet side of the housing

along the discharge side of the housing

at the extreme upper and lower peripheries of the housing

even throughout the entire periphery of the housing when matched machined gear sets are used

🔍 Key Concepts

💭 Think About

✅ Before You Answer