🔍 Key Concepts

• Review what item F represents in this purifier cross‑section (is it part of the water seal, an O‑ring, or a drain path?). • Recall how the water seal controls the oil/water interface radius inside a centrifugal purifier bowl. • Think about what happens to the purifier’s interface position and seal integrity if sealing water leaks away during operation.

💭 Think About

• If item F leaks, will there be more or less sealing water in the bowl? How would that change the position of the oil/water interface relative to the vertical axis? • Which of the listed effects (shutdown, constant interface position, loss of water seal, outward movement of the interface) logically follows from losing sealing water while the machine is running? • Ask yourself: does the purifier automatically shut down only from a leak at this point, or from separate sensors (vibration, high water content, overflow, etc.)? Which option is least directly caused by a small leak at F?

✅ Before You Answer

• Confirm from the illustration that F is associated with the water seal or its drain path, not with the drive or control system. • Decide whether loss of water seal would make the interface move inward or outward; remember, less water usually means the oil phase moves toward the bowl centerline. • Check which listed condition depends on automatic protective devices rather than purely on the hydraulic balance inside the bowl. That one is most suspect as the condition that will NOT necessarily occur.