An automatic sprinkler system is intended to detect, control and extinguish a fire, and warn the occupants of occurrence of fire. The installation comprises fire pumps, water storage tanks, control valve sets, sprinkler heads, flow switches, pressure switches, pipe work and valves. The system operates automatically without human intervention. The sprinkler head has a liquid filled glass bulb that breaks due to the heat of the fire and release water that sprays over fire.

The installation is the most common type and a typical sprinkler is shown as below.