Pre-action Systems:Ī sprinkler system employing automatic sprinklers attached to a piping system containing air under pressure with a supplemental detection system installed in the same area as the sprinklers. Special systems are designed to detect and extinguish fires in locations where standard suppression systems are not appropriate or adequate. Dry-pipe systems are installed in lieu of wet-pipe systems where piping is subject to freezing. When released, the water flows into the piping system and discharges only from those sprinklers which have been operated by the fire. The dry-pipe system employs automatic sprinklers attached to a piping system containing air or nitrogen under pressure. Only those sprinklers which have been operated by heat over the fire will discharge water. The water discharges immediately from sprinklers opened by a fire. The wet-pipe system employs automatic sprinklers attached to a piping system connected to a water supply. Types of Fire sprinkler Systems: Common Fire sprinkler Systems: Wet Fire Sprinkler Systems: Main water shut off valve which allows the system to be closed down when the fire has been extinguished. This way the sprinkler system both controls the fire and gives an alarm using water, not electricity. For safety reasons it is kept locked open and only authorized persons should be able to close it.Ī pelton wheel rotates when water starts flowing in the system which in turn operates a warning bell. This can be used to shut off the system for maintenance. In a large warehouse sprinklers may be placed in the storage racks as well as the roof.Īt the point where the water enters the sprinkler system there is a valve. Sprinkler heads can be placed in enclosed roof spaces and into floor ducts to protect areas where a fire can start without being noticed. This limits any damage to areas where there is no fire and reduces the amount of water needed. Only the sprinklers over the fire will open and the others will remain closed. The hot gases from a fire will raise the temperature at ceiling level and when the area adjacent to the head reaches a specific temperature that sprinkler head will actuate and spray water on to a fire. When heat is applied from a fire below, the glass bulb will burst, due to expansion of the liquid in the bulb, or the solder will melt, which then releases the plug and water flows through the sprinkler head. The water is held back by a glass bulb or soldered strut which holds a plug in place. Water can be supplied from a tank via pumps or from the town mains, providing the flow is sufficient and fills the pipes.ĭetector heads are nozzles that direct a jet of water on to a deflector plate which defuses over a large area. How Sprinklers Work:Ī fire sprinkler system are a network of fixed water pipes supplied by two water sources with sprinkler heads fitted at recommended distances apart. Depending on the system type, the pipes can be filled with water, pressurized air, or nitrogen gas. Pipes are generally made out of fire-resistant plastic, steel, or copper.
FIRE SPRINKLER DESIGN MANAGER SALARY FLORIDA SERIES
If you don’t have an adequate and proper system, your building won’t have the protection it needs.Ī sprinkler system consists of a series of heads that are connected to a system of pipes, which are usually installed on the ceiling, although they can be installed on walls as well. Just as there are many types of buildings in varying conditions, there are also different fire sprinkler system types. Having the right sprinkler system in a building is a must. Definitions:Ī fire sprinkler system is an active fire protection measure, consisting of a water supply system, providing adequate pressure and flow rate to a water distribution piping system, onto which fire sprinklers are connected. is officially formed and publishes codes for automatic sprinkler installation. It consists of shell and soldered brass cap.ġ882 -Grinnell invents an improved sprinkler that can withstand higher pressures and distributes water more evenly.ġ896 -N.F.P.A.