How do those fire sprinkler things work?



  1. 0 Votes

    Fire sprinklers have a trigger of some sort. Most are a glycerin-based liquid that expands when heated. The liquid is encased in a glass tube and when it expands (at a temperature of usually 155 degrees), the glass tube breaks. A plug is forced out when the tube breaks, pushing out pressurized water. The pressurized water is the deflected in different directions to hopefully extinguish the fire.

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