Sprinkler System Working Principle

Sprinkler heads operate individually.

Sprinkler system working principle.

When the air is hot enough and reaches a sprinkler head it triggers a chain reaction. Principle of operation normally a wet pipe automatic fire sprinkler system is fully charged with water coming from a known reliable water supply. Not just any heat source will trigger a sprinkler system to activate. A sprinkler system is a network of pipes running through the ceiling of a building holding water under pressure.

When a blaze ignites the air directly above it heats rapidly. The installation is pressurised with the alarm valve secured in the open position. This hot air rises and spreads along the ceiling. The sprinkler heads must detect a high enough temperature usually between 135 and 165 degrees fahrenheit 57 to 74 celsius.

A fire sprinkler system is an active fire protection method consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system onto which fire sprinklers are connected. Each sprinkler is nothing but a faucet or tap as they call it in some countries a hole in the pipe through which water can escape into the building below. Note the red liquid alcohol in the glass bulb.