768. What is the normal direction of flow through the device shown in the illustration while operating in the processing mode

The oily-water mixture enters through valve 5 and exits the separator through valve 14 as processed liquid, aligning with the illustration's depiction of the inlet and outlet pathways during normal processing mode. Valves 2 and 4 serve other functions and are not part of the primary flow path, while valve 14 is the designated clean-water outlet.