Deluge Wet Sprinkler / Dry Sprinkler System
Deluge sprinkler systems are a type of fire suppression system that use open sprinkler heads that are attached to a piping system that is connected to a water supply. These sprinkler heads are always open and the system is activated by a fire alarm system, releasing water to all the sprinkler heads simultaneously.
The deluge system is typically used in facilities where high hazard areas are present, such as chemical and petrochemical plants or storage facilities, as well as in areas that require quick and thorough suppression of fires, such as aircraft hangars.
There are two types of deluge systems: wet and dry. Wet deluge systems have water in the pipes at all times and are connected to a reliable water supply. When the system is activated, water is released through all the sprinkler heads simultaneously. Dry deluge systems use pressurized air or nitrogen to keep water out of the piping system. When the system is activated, the air or nitrogen is released, allowing the water to enter the piping system and flow through all the sprinkler heads.
Dry sprinkler systems are similar to deluge systems in that they also use pressurized air or nitrogen to keep water out of the piping system. However, dry sprinkler systems are activated individually by heat, allowing water to flow only in the area where the fire is present.
Both deluge and dry sprinkler systems require proper installation, testing, and maintenance to ensure their reliability and effectiveness. Regular inspections, testing, and repairs can help identify and address any issues that may impact the system's performance in the event of a fire. The system must also comply with local building codes and regulations, which often include requirements for backflow prevention and regular testing.