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.
There are currently 6 active fleets in the U.S. Navy, the 3rd, 4th, 5th, 6th, 7th, and 10th fleets. The Navy's 2nd Fleet was disestablished in September 2011, after 41 years i â¦ n existence.