THE 4 TYPES OF FIRE SPRINKLER SYSTEMS

 

 

In our previous blog we had mentioned that Sprinkler systems  is the quickest response to Fire in any premise.

We reiterate that Fire protection is of the upmost importance in commercial & residential buildings in case of an emergency. One of the best preventative measures to take for the safety of employees, residents  and  property is the installation of Fire sprinkler systems.

There are Four main types of Fire sprinkler systems of which we should be aware of when choosing the right one for commercial /residential building

  1. Pre-Action Sprinklers – Pre-action fire sprinklers systems are filled with air when not in use and water flows through them when the smoke detector goes off. Two triggers are required to start the flow of water from them. Pre-action sprinklers are helpful, in that they can be set to prevent water from coming out of them should a mechanical failure or false alarm occur. The pre-action system is typically good for places where sprinklers are only necessary when an actual fire occurs, so that water damage is not as prevalent. These areas may include data centers, libraries, or other places with high-value items as also residential premises.
  2. Wet Pipe Sprinklers – As their name suggests, wet pipe sprinklers are constantly filled with water. This allows them to quickly react should a fire occur. They are also the most commonly installed type of sprinkler in buildings. A high rise or multi-storeyed building would be a typical property where these are installed. This type of fire sprinkler system is known for being typically low maintenance and cost efficient.
  3. Dry Pipe Sprinklers – Similar to pre-action     systems, dry pipe sprinklers use pressurized air (pneumatically charged )in the pipes, which exit before the water. This can cause a bit of a delay before water is discharged, but is a good choice for buildings in colder areas so the pipes do not freeze in winter causing the pipe to burst. These feature a fast opening tool that helps rid the pipe of air and increase  the water flow

In case of all above Sprinkler systems ,only one or a few sprinklers in the close vicinity of fire would  get actuated to douse the fire at its incipient stage.

Whereas in a Chemical fire ,inflammable vapours or gaseous atmosphere ,the spread of fire being very rapid ,the system requires to cover the complete area and therefore in case of a deluge system ,all the sprinklers would get simultaneously activated causing a deluge.

This is called Deluge system.

4.Deluge – Also similar to a pre-action system, the deluge sprinkler system requires a smoke or heat detector as well. This system features open nozzles that may be use when a fire occurs. Deluge systems are mainly good for buildings with hazardous chemicals or flammable liquids.

 

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