🔍 Key Concepts

• Centrifugal purifier vs. clarifier – what changes when you use water seal/priming vs. when you don’t • Water seal (priming water) – its function in keeping oil and water separated and controlling which phase discharges where • Flow paths in a disk-type separator – which outlets are intended for oil and which for water under normal operation

💭 Think About

• Think about what the priming (seal) water physically does inside the bowl: how does it position the oil/water interface relative to the discharge rings? • If there is no water seal, which liquid (oil or water) will be closer to the water discharge ports, and what could that cause? • How would a separator behave differently from a clarifier in terms of having one vs. two liquid outlets? What would failing to prime do to that behavior?

✅ Before You Answer

• Identify clearly which discharge ring (ports) are designed for water discharge and which for clean oil discharge during proper separator operation • Consider what happens to the oil–water interface level when there is no priming water in the bowl • Ask yourself: would lack of priming more likely cause a change in where the oil exits, a change in where solids collect, or promote emulsification?