🔍 Key Concepts

• Centrifugal force in a tubular bowl purifier – where does the heavier water layer actually sit relative to the lighter oil? • Water seal function – it must stay inside the bowl and NOT be drawn off with the clean oil during normal running. • Shape and direction of an inclined port or passage – how its low/high ends relative to the centerline affect which liquid can flow out.

💭 Think About

• Look at GS-0124 and identify which passage carries the CLEAN OIL away. From which radial position in the bowl does that passage begin – closer to the center, or closer to the outer wall? • If the heavy water is kept at the outer radius and the lighter oil is inside of it, should the discharge passage start nearer the center or nearer the bowl side to prevent the water layer from escaping? • For each choice, imagine the purifier spinning: which port orientation would make it hardest for the heavier outer water layer to ‘climb’ into the outlet passage?

✅ Before You Answer

• Verify which liquid (water or oil) is at the outer radius under centrifugal force. • Confirm that during normal operation, only light oil should reach the outlet passage while the heavier water layer remains trapped in the bowl. • Check the illustration to see which passage is drawn as rising in toward the center versus rising out toward the bowl side, and which one is connected to the clean-oil outlet.