Upright Sprinklers

The standard response upright sprinkler is easy to use and highly reliable. Sprinklers are placed on a purpose-designed pipe network so as to cover the area that needs protection. The liquid in the glass bulb expands with the heat produced by the fire and bursts the bulb. The temperature rating must be chosen 30 °C above the maximum ambient temperature expected. When the bulb bursts, the water under pressure strikes the deflector and is sprayed over the fire. Only the sprinklers that see the temperature rise operate.

Upright sprinklers are installed with the deflector facing upwards in areas without a suspended ceiling. The water strikes the deflector and spreads downwards in a cone. They are used in wet, dry and pre-action systems.