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maritime DC & PPE Information Center
Firemain System

The shipboard firemain system consists of fire pumps, piping consisting of vertical pump risers, longitudinal service mains, cross-connects, service risers, branch lines, and valves through which seawater is pumped to fire hose stations, Aqueous Film Forming Foam (AFFF) proportioners and sprinkler systems. It also supplies water to flushing, emergency drainage, backup seawater service, machinery and electronic cooling systems. The Washdown Countermeasure, Magazine Sprinkler, Weapons Elevators, Missile Water Deluge System, Trash Burner, Flight Deck Weapons Staging Area and Compartment Sprinkling Systems are also supplied by the firemain.

For more information, see the Index.