Pressurized Water Mist – The Optimal Fire Protection Solution for Enclosed Spaces

Fires start at the presence of three basic elements:

• Combustible materials or fuel
• Sufficient energy or heat
• Oxygen

To extinguish a fire efficiently, at least one of these elements must be neutralized and removed.

Pressurized water mist is a method that extinguishes fires by spraying compressed tiny droplets of water and creating an atmospheric fog. This method is the better alternative for hosing immense amounts of water directly on the flames, and it has two beneficial effects: cooling and oxygen displacement, which correspond to removing two of the crucial elements for fires.

Droplet size: 20-200 UM.

A Pressurized water mist system is highly efficient for most fires which is better than conventional gas, foam and water fire extinguishing systems.

This system suppresses and contains a fire by spraying a highly pressurized mist of water droplets issued from special sprinklers.

Pressurized mist systems use up to 90% less water than conventional fire suppression systems that tend to consume vast amounts of water.

The pressurized mist penetrates the flames thoroughly. The tiny mist droplets evaporate rapidly. This process efficiently consumes the heat energy around the fire and cools the area. At the same time the water mist is also sprayed directly on the core of the fire so the concentration of oxygen in the surrounding atmosphere drops considerably. The fog generated by the system may also serve as a protective screen that prevents heat transfer and as a result prevents the fire’s spreading and reigniting. In addition, smoke particles attach to the heavier mist droplets and this reaction prevents smoke spreading in the space.

The extraordinary efficiency of pressurized mist systems stems from containing two of the main fire elements: heat and oxygen. This effect is achieved with relatively small amounts of water. Moreover, due to recent innovation in the field, pressurized mist systems are nowadays very adaptable and suitable for a variety of spaces and settings.

The main benefits of this method are:

Efficiency – the fire protection capacities of this method have been tested in research laboratories and it has proven its efficiency in actual fires.

Safety – the system is risk-free for people and environmentally safe.

Cleanliness – the system runs on water only so it is easy to clean and maintain.

These qualities make this system the optimal solution for enclosed spaces such as: railway cars, small rooms or tunnels. Such spaces may be sometimes inaccessible so the arrival of firefighters might be delayed. One of the greatest challenges is controlling the damages until the rescuers arrive on the scene, but these systems can be remotely operated to respond before their arrival.

Pressurized water mist isolates the core of the fire and cools it drastically, so the fire eventually stops spreading. The mist contains the fire, improves visibility and makes evacuation easier so firefighters may access the fire’s sources faster.