Sprinkler systems
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9 Terms
Automatic Sprinkler System
Consists of a water source, distribution piping, and one or more individual sprinklers.
Wet-Pipe System
A sprinkler system where the piping is constantly full of water under pressure, activating when heat from a fire reaches a specific temperature.
Dry-Pipe System
A sprinkler system where the distribution piping is filled with air, allowing functionality during freezing temperatures but delaying water application.
Types of Dry Sprinkler Systems
Includes Dry-pipe, Preaction, and Deluge systems.
Dry-Pipe System Description
Features closed sprinklers and air under pressure; releases water when a sprinkler activates.
Preaction System Description
Involves closed sprinkler heads, air under pressure, and a secondary detection system; both must activate to release extinguishing agent.
Deluge System Description
Comprises open sprinklers and piping; a fire detection system activates the control valve, releasing extinguishing agent from all heads.
Risk of Wet-Pipe Systems in Cold Climates
Water in the piping can freeze, potentially causing bursts and water damage when thawing occurs.
Applications of Dry Sprinkler Systems
Commonly used in areas prone to freezing or in cold-storage units.