🔍 Key Concepts

• Study how opening water (V15) and closing water (V16) act on the operating slide ‘c’ and sliding bowl ‘a’. • Trace the role of sealing water (V10) in keeping the discharge ports closed after sludge ejection. • Use the symbol legend on MO-0024 to see which lines are pressurized and which are drained when the bowl is in the closed/operating condition.

💭 Think About

• After a normal sludge discharge, do you want the bowl to stay open or return to the separating (closed) condition? Which water flow achieves that? • If opening water lifts the sliding bowl to uncover the sludge ports, what must happen to that opening water line and to the closing water line for the bowl to shut again? • Does the sealing water (V10) need to be present or dumped for the bowl to be closed and the ports sealed during normal separation? How does that affect your choice?

✅ Before You Answer

• Identify which valve line on the right-hand schematic supplies opening water (V15) and which supplies closing water (V16) to the bottom of the bowl. • Check which condition (open vs. closed bowl) corresponds to pressurized closing water under the operating slide and which corresponds to pressurized opening water. • Verify whether the water outlet V5 should be open or closed when the bowl is operating normally (not dumping sludge) and how that matches the listed valve combinations.