Operations Fire Pump Theory TCFP Section 180 180-2.00 --- 180-3.01 Part 3
Power transfer from engine to pump • Auxiliary engine driven • Power-take-off (PTO) • Cross-mounted engine • Front mounted • Mid-ship transfer drive
Auxiliary engine driven pump • Uses a separate engine to drive the fire pump • Used for specialty applications 1. Airport crash trucks 2. Portable brush pumps They can be mounted anywhere on the apparatus it will fit.
Relay pumping operations • The process of using two or more pumpers to move water through hoselines over long distance by operating the pumpers in series
Tandem pumping operations • A short relay operation in which the pumper taking water from the supply source pumps into the intake of the second pumper. • The second pumper booster the pressure of the water even higher. • This method is used when pressures higher than the capacity of a single pump are required.
Dual pumping operations • An operation where a strong hydrant is used to supply two pumpers by connecting the pumper intake-to-intake. • The second pumper receives the excess water not being pumped by the first pumper, which is directly connected to the water supply source.