The sprinkler head rated for 68°C is a temperature-activated fire protection device in an automatic sprinkler system. When the ambient temperature around the sprinkler rises to approximately 68°C (the bulb or link melts/break), the sprinkler head activates and discharges water to control or suppress fire. The 68°C rating is typically an ordinary hazard / standard response temperature classification, and it ensures activation in rooms where the normal ambient should be well below that so only fire-heat triggers it.
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- Activation temperature : 68°C (155°F)
- Maximum working pressure : often approx 12 bar
- Colour coding : red glass bulb
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