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.
A fleet is usually a large group of ships, but it can be any group of vessels like planes or cars that operate as a unit. A naval fleet is the largest formation of warships. A naval fleet at sea is like an army on land. One meaning of fleet comes from the Old English fleot, meaning âship,â âraft,â or âfloating vessel.â Although a fleet is usually a group of ships or airplanes operating under the same ownership, any group of vessels sailing together can be called a fleet, even you and your friends in a fleet of kayaks.