ESFR sprinkler heads output rate - 100 gallons per minute. Droplet size - ESFR sprinkler heads release larger droplets of water with greater momentum than conventional heads. This combination of size and momentum allows the sprinkler droplet to penetrate a fire plume and reach the seat of a fire.
Definition of fleet for Students. 1  1 : a group of warships under one commander. 2  2 : a country's navy. 3  3 : a group of ships or vehicles that move together or are owned by one company a fishing fleet a fleet of taxis.
navies. 1  1 : a group of ships : fleet. 2  2 : a nation's ships of war and of logistic support. 3  3 often capitalized : the complete naval establishment of a nation including yards, stations, ships, and personnel.  4 : a dark grayish purplish blue.