Water Mist Extinguishing System

Water Mist Extinguishing System

A water mist extinguishing system uses water sprayed into extremely small droplets to extinguish a fire. The small water droplets absorb heat effectively and help bring the fire under control quickly.

Tondi Tulekaitse offers water mist extinguishing systems from the German manufacturer FogTec. These systems are suitable for situations where effective extinguishing, lower water consumption and minimal water damage are important.

How does a water mist extinguishing system work?

In a water mist extinguishing system, water is sprayed into very small mist-like droplets to extinguish a fire. This increases the absorption capacity of water and improves extinguishing efficiency. Depending on the size of the water droplets, the same amount of water can cover different extinguishing areas.

Water mist helps extinguish fire in two ways:

• by cooling — the sprayed water absorbs the heat needed for combustion and prevents heat from spreading in the room;

• by separating oxygen — water mist limits the access of oxygen needed for combustion to the fire source.

Effect of droplet size on extinguishing area

Approximate extinguishing area per 1 litre of water:

• water droplet diameter 1 mm — 2 m² (sprinkler);

• water droplet diameter 0.1 mm — 20 m² (low-pressure water mist);

• water droplet diameter 0.01 mm — 200 m² (high-pressure water mist, FogTec).

Why choose a high-pressure water mist extinguishing system?

A high-pressure water mist extinguishing system uses very small water droplets, which means that the same amount of water can cover a larger extinguishing area than a conventional sprinkler solution.

A high-pressure water mist extinguishing system:

• is safe for people;

• has a fast and effective extinguishing effect, also reaching hidden areas in the room;

• quickly cools hot surfaces and helps prevent re-ignition;

• has minimal impact on electronics;

• requires little water;

• causes minimal water damage compared to sprinkler or low-pressure water mist systems;

• is easy to install.

Where is a water mist extinguishing system suitable?

A water mist extinguishing system is suitable for rooms where it is important to extinguish fire effectively while reducing damage caused by water use.

For example, a water mist system may be suitable for:

• technical rooms;

• production and industrial environments;

• rooms with equipment or electronics;

• buildings where a sprinkler solution could cause excessive water damage;

• sites where fast cooling extinguishing performance is important.

FogTec water mist extinguishing systems

Tondi Tulekaitse offers water mist extinguishing systems from the German manufacturer FogTec. When choosing a suitable solution, the protected room, risks, equipment and fire safety requirements must all be taken into account.