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. Although historically only used in factories and large commercial buildings, systems for homes and small buildings are now available at a cost-effective price. Fire sprinkler systems are extensively used worldwide, with over 40 million sprinkler heads fitted each year. Even though Fire Sprinkler Systems are a Life-Saving System and are not designed to protect the building, 96% of buildings that had fires and were completely protected by fire sprinkler systems were controlled by the fire sprinklers alone.

Wet pipe, Dry pipe, Pre-action, and Deluge are four types of fire sprinkler systems. Each of these systems helps prevent flames from spreading and reduces fire damage. The main difference between these types of fire sprinkler systems is their applications and how they activate.