🔍 Key Concepts

• Study how a disk-type centrifugal purifier bowl operates through its different cycles: clarification, bowl retention, sludge discharge, and backflush. • Look closely at port X in the illustration: note what chamber it opens into and whether that chamber is for water, oil, or discharge flow. • Think about when fresh sealing or operating water is deliberately admitted to a chamber to move a sliding bowl bottom or open discharge ports.

💭 Think About

• Ask yourself: in which cycle does the machine need water pressure to move internal parts (such as the sliding bowl bottom or operating slide) rather than just separate oil and water? • Consider: does port X look like it would be used continuously during normal separation, or only briefly during a special operation like opening/closing discharge ports? • During which cycle must water enter underneath or behind a sliding component to either open or close the sludge ports in the bowl?

✅ Before You Answer

• Identify whether the adjoining chamber at port X is connected to the operating water space that actuates the sliding bowl bottom, not the clarified oil outlet. • Verify from the flow path if port X would be active only when starting or ending a sludge discharge, not during steady-state clarification. • Confirm whether the backflush and sludge discharge cycles both use water, and then decide which one actually requires water to enter this specific chamber to move the sliding parts.