The pumping subsystem, figure 2, performs the functions associated with pumpage flow from the fuel drums to the fueling
points: suction, discharge, and recirculation. The primary component of the pumping subsystem is the fuel transfer pump.
The suction side of the pump is supplied by non-collapsible hoses connected in parallel to the outlet side of the fuel drums.
Pumpage from the discharge side of the pump moves through the liquid fuel filter-separator to the fueling points. Fueling is
accomplished at four fueling points, using any combination of D1, CCR or oil/fuel servicing nozzles. Fuel recirculation
occurs continually during system operation.
FUEL TRANSFER PUMP
Figure 2. Pumping Subsystem