A fire pump is a part of a fire sprinkler system’s water supply and powered by electric, diesel or steam. The pump intake is either connected to the fresh supply piping, or a static water source (in a boat this would be sea water). The pump provides water flow at a higher pressure to the sprinkler system risers and hose standpipes. A fire pump is tested and listed for its use specifically for fire service by a third-party testing and listing agency, such as BV, DNV-GL, ABS or Lloyds Register. The main code that governs fire pump installations in the maritime world are the SOLAS regulations.
Fire pumps function either by an electric motor or a diesel engine, or, occasionally a steam turbine. If the vessel code requires power independent of the main power supply, a pump using an electric motor may utilize, when connected via a listed transfer switch, the installation of an emergency generator