How are sprinkler systems activated?
Fire sprinklers are activated by heat, not smoke. Each sprinkler head contains a small frangible glass bulb filled with a special liquid. Nothing should be in that area between the bottom of the sprinkler heads and the imaginary horizontal plane parallel to the ceiling that is 18 inches below. This is done to allow an even and unobstructed spray pattern from the sprinklers when triggered to extinguish the fire.
What are the 4 types of sprinkler systems?
Types of sprinkler systems permissible by NFPA 13, Standard for the Installation of Sprinkler Systems, are wet, dry, preaction, and deluge. We have provided a detailed comparison of four of the most common types of commercial fire sprinklers: wet pipe, dry pipe, deluge, and pre-action systems.Types of sprinkler systems permissible by NFPA 13, Standard for the Installation of Sprinkler Systems, are wet, dry, preaction, and deluge. Other types of extinguishing systems, such as clean agent or water mist, are addressed by other standards.