1. After the fuel enters the filter separator, the solid impurities are first filtered out by the filter layer.
2. In the demulsification layer, the oil and water in the emulsified state are separated.
3. In the oil-water separator, small water droplets will condense into large water droplets, which are kept in the sump.
4. Through the water repellent effect of the separated filter element, the small water droplets that have not had time to condense are collected into the sedimentation tank, and then discharged from the drain valve.
5. Finally, drain the fuel whose moisture has been separated from the filter separator.
