Diesel engine driven fire pump set are used in conjunction with, or in addition to, electric motor driven fire pumps as the best combination for reliable pumping systems.


When combined with on-site water storage-such as a ground storage tank, an underground reservoir, a tower, a pond, or a well – a diesel driven fire pump is completely self-contained.


Properly designed and installed diesel-driven fire pump units can service extended periods in the absence of ac power.


Some installations can remain in extended service when the controller, engine, and other battery loads are low enough for the weekly run function to replenish the batteries, depending on the availability of fuel.


As with all fire protection equipment, the functionality of the fire pump system is only as good as the performance of the periodic maintenance and inspection programs.


Refer to chapter 8 of NFPA 25, standard for the inspection, testing, and maintenance of water-based fire protection system, and the original equipment manufacturers (OEM) manuals, instructions, and requirements for the full requirements for periodic care and maintenance schedules.