The ZST series standard response sprinkler is the key unit in sprinkle system. It is consist of
sprinkler, heat sensitive component (a glass bulb) and seal. It is installed in protection zone. The
temperature of surroundings reaches the motion level when fire breaks up, the liquid in the glass
bulb swells and then the glass bulb blasts. Thus, the seal drops and the sprinkler start to work.
The sprinkler can detect fire and spray automatically.