It is best to have protection in commercial buildings in case of fire or smoke. Installing a sprinkler system is a good preventative measure to take. There are various types of fire sprinklers and below are descriptions of these so you know which one is best suited for your commercial building.
Pre-action
Pre-action fire sprinkler systems are filled with air and water is allowed to pass through when the smoke alarm or detector goes off. This type of system requires two triggers to start water flow. It helps greatly that the pre-action fire sprinkler can be set to prevent water from spouting in case of a false alarm or a mechanical failure. The pre-action system is good for use in places where the sprinklers are only necessary when there is an actual fire so other items in the building do not get water damage from an accidental sprinkling. Such buildings include libraries and data centers. These places contain items of high value like electronics and goods damageable by water such as books
Dry Pipe
Dry pipe sprinklers are similar to pre-action systems as they use pressurized air in the pipe which exits before water escapes. This causes a minute delay in water discharge but is ideal for buildings with low temperatures so the pipes do not freeze. These fire sprinkler systems have a fast opening tool to get rid of the air and speed up the flow of water. Warehouses located in the north are a good example of what buildings should use dry pipe sprinklers.
Wet Pipe
Wet pipe fire sprinklers constantly have water in them. This allows for a quick reaction to a fire and is the most common type of sprinkler installed in buildings. A type of building that uses the wet pipe system is a high-rise or office building with a few floors. This fire sprinkler system is cost efficient and low maintenance.
Deluge
These types of fire sprinkler systems also need a smoke or heat detector like the pre-action system. A deluge system has open nozzles that can be used when a hazard is present. When flammable liquids are spread across a floor, deluge fire sprinklers are good to have. In that case, buildings such as industrial parks and buildings with many tanks have deluge fire sprinkler systems installed.
At Fireline, we offer an array of fire sprinkler systems and fire detection systems to keep your business safe. Fireline offers the highest quality alarm systems to keep you safe from fires and carbon monoxide poisoning.
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Sources -http://www.ifcgroup.com/fire-engineering/sprinkler-system-design/types-of-sprinkler-system.html
http://wiginton.net/pdf/Wiginton-Fire-Protection.pdf
http://home.howstuffworks.com/home-improvement/household-safety/fire/fire-sprinker-system4.htm