Extinguishing nozzles are integrated into a ceiling pipe network.
The sprinkler system is on permanent standby via an independent water supply.
The individually operating extinguishing nozzles of the system are closed by a glass barrel.
In the event of a fire, the glass barrel reacts to the heat generated by the fire and bursts.
Via the opened extinguishing nozzle, the water can only escape for a certain number of sprinklers at the fire site and is sprayed in a targeted manner.
The cooling effect of the water, the extraction of large amounts of heat and the conversion into steam ensures the selective extinguishing success.
Wet systems are the most commonly used sprinkler systems in the world. Here, the entire pipe network is under constant water pressure. In case of fire, the sprinkler is activated and the extinguishing agent "water" is immediately provided in sufficient quantity via the wet alarm valve. At the same time, the wet alarm valve alerts the responsible emergency services. This system may only be used in locations where there is no risk of frost or overheating (+95 degrees) for the extinguishing water in the pipe deck network throughout the year.
Dry systems differ from the aforementioned wet system in that the piping system is not filled with water, but with compressed air. The water is filled only up to the dry alarm valve. In case of fire, the sprinkler opens and the compressed air escapes first - then the dry alarm valve releases the extinguishing water to the sprinklers. This system allows the use in frost-prone objects such as parking garages and unheated warehouses.
PILOT OPERATED DRYING PLANTS
Pre-controlled dry systems are used in critical zones where an unintentional discharge of extinguishing water is to be avoided in any case. Therefore, two independent extinguishing release mechanisms are linked in such a way that the extinguishing process only starts when both release systems are activated simultaneously.
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