Petroleum Terminal Handling and Diesel Exhaust Fluid

43 1. Ball Valve – Close for normal operation. Open when filling or draining the vessel. 2. Ball Valve – (Optional) Open for normal operation. Close when air eliminator is to be removed for service. 3. Automatic Air Eliminator 4. Check Valve – Prevents air from siphoning into vessel 5. Pipe Unions 6. Pressure Relief Valve – Set at maximum working pressure (design pressure) of vessel or lower 7. Flow Indicator (Optional) Auto Air Eliminator & Relief Valve Hook-Up Typical Arrangement for Filter/Separator TO RECOVERY TANK

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