🔍 Key Concepts

• Trace the internal passage from port C to see where it actually goes inside the separator. • Remember how a purifier separates dirty oil, light phase (clean oil), and heavy phase (water/sludge) and where each normally enters or leaves the bowl. • Compare the vertical level and color shading of ports A, B, and C with the light and heavy liquid layers in the bowl.

💭 Think About

• If a port is used for a discharge, should its internal passage lead outward from the separated layers, or inward toward the center feed pipe? What do you see for port C? • Look at which colored layer (light oil, heavy water, or feed mixture) port C lines up with. Does that layer look like an inlet stream or an outlet stream? • Between A, B, and C, which ports appear to be connected to the upper (lighter) liquid and lower (heavier) liquid regions of the bowl? What does that imply about the remaining port?

✅ Before You Answer

• Verify whether port C connects directly to the central feed/inlet tube or to one of the outer annular discharge channels. • Confirm that port A is aligned with the light phase region and port B with the heavy phase region in the bowl; this helps you deduce the purpose of C by elimination. • Make sure you distinguish between a water seal/operating water line (usually going to the bowl locking mechanism) and the line that actually carries the dirty oil mixture into the separator.