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How Do Fire Sprinkler Systems Work?

Fire sprinklers are highly effective at containing fires. Over 96% of fires in buildings are controlled by fire sprinklers alone and the sprinklers reduce the amount of water used to fight a fire by up to 90%. Installing a fire sprinkler system is complicated, but fire sprinkler contractors are trained and experienced to handle the job. Keep reading to learn how fire sprinkler systems work.


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The wet pipe system is the most common fire sprinkler system in use that is installed by fire sprinkler contractors . This is because each sprinkler head is activated independently so if there was a false alarm, water damage would be limited.

In the wet pipe system, a fire sprinkler design has three components, a plug, a glass blub, and a sprinkler. When temperatures rise in the event of a fire, the liquid in the glass bulb expands. The higher the temperature gets, the more it will expand until the glass breaks. Once the glass is broken, water comes out from the plug to the sprinkler and is spread over a large area.

Since every building, warehouse, or office is different, there are various types of glass bulbs for sprinkler systems. Orange blubs break at 135 degrees Fahrenheit, red bulbs break at 155 degrees Fahrenheit, and yellow, green, blue, purple, and black bulbs at even higher temperatures. If you are unsure which type of bulb you need for your business, fire sprinkler companies or a fire sprinkler system designer will be able to help you.

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