If you have been involved with the fire safety commerce for any length of time, you have probably heard the phrase "fire agency connection" or "Fdc" more times than you can count. But, what exactly is a fire agency connection? The term can be used to report any number of construction connections designed to provide water while a fire.
Most commonly, a fire agency relationship consists of a brass body with two, three, or four 2½" inlets for the fire agency to join together hoses to. Generally, water is pumped into the relationship to supplement the building's fire sprinkler or standpipe system. In most cases each inlet has its own clapper, or check valve, that will only allow water to move in one direction, into the building. Connections ordinarily fall under one of three categories: exposed, flush mount, and free standing.
Home Defense
1. Exposed Fdc - You'll see these mounted to the wall of a building. Usually, they are backed by a ornamental ring, or escutcheon plate, indicating its intended use: automated sprinkler, standpipe, or standpipe & automated sprinkler.
2. Flush Mount Fdc - This type of relationship consists of a body mounted behind the wall of a construction with only the escutcheon plate and inlets descriptive on the outer wall.
3. Free Standing Fdc - These are ordinarily found on the sidewalk in front of a building. A pipe will be protruding from the ground with the relationship mounted to the top at a 90 degree angle, so the inlets are facing out in the general configuration. In the free standing application the escutcheon plate will be resting on the ground around the pipe. In descriptive areas, a ornamental sleeve is often settled over the pipe to match the close of the Fdc.
Fire department relationship - A Crucial Piece of Fire protection tool
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