What is Fire sprinkler? What are the types of Fire sprinklers?


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What is fire sprinklers?

Fire sprinklers are devices installed above the building ceiling, which are automatic control valves that operate in the room or area when the fire is detected. The fire sprinkler is an active type of fire sprinkler that connected to the water source and provides adequate pressure and flow rate of fluid to the sprinkler.

There are different types of sprinklers each type suits for the different environment or building.

Types of fire sprinkler:

Each offering a slightly different level of fire protection and each suitable for different types of
buildings.

Wet Pipe Fire Sprinkler Systems:

These are the most common type of fire sprinkler, wet pipe fire sprinklers. With a wet pipe fire sprinkler, all water is stored directly in the sprinkler pipes under pressure and released by sprinkler heads that are heat-activated.

The best thing about a wet pipe fire sprinkler system is that they acylate instantly - no lag time between the fire sprinkler heads opening and the water being released.

Dry Pipe Fire Sprinkler Systems:

Dry pipe fire sprinkler systems are similar to wet pipe systems, except that water is not stored in the pipes. Instead, the pipes are filled with pressurized air or nitrogen gas. The gas is released when the sprinkler heads open, and a valve opens allowing water to flow through the heads of the open fire sprinkler.

This causes a slight delay in water discharge (usually only a second), but it is useful in buildings where water can freeze if it is kept in the pipes.

Deluge Fire Sprinkler Systems:

A deluge fire sprinkler system is very similar to a wet fire sprinkler system with the exception of keeping the heads of the fire sprinkler open at all times they are not heat-activated.

Deluge fire sprinkler systems are operated by a special fire alarm which, when activated, opens a valve to release the water. Once the valve is opened, it has to be manually shut down.

Pre-Action Fire Sprinkler Systems:

A pre-action fire sprinkler is basically a combination of the fire sprinkler system for wet pipe and dry pipe. Water will not be stored in the pipes in a pre-action fire sprinkler system until a fire detection device detects a fire.

The detection device opens a valve in the pipes when it detects a fire to let the water in before the heads of the sprinkler open. When the heads open, the fire sprinkler system pre-action.


Fire sprinkler system element and classification of installation area