Marine units have passed severe U.L. testing and are U.S. Coast Guard accepted for Marine Applications. Tests include fire endurance, vibration fatigue, impact and thermal shock. How the AMS OIL DAHL System Works 1. Contaminated fuel or gasoline enters the inlet port. The fuel is directed down through the center tube.
Fuel flows through the reverse flow valve.
Fuel flow is spread by the depressurizer cone. As the fuel rises upward, any remaining minute water droplets collect on cone, baffle and bowl surfaces. The size and weight of the droplets gradually increase causing downward flow into the sump. Fuel is then filtered completely by the element. The clean fuel then continues up through the outlet port to the pump and injection system.