Fire suppression with high-pressure water mist for all engine compartments and closed spaces

The Fogmaker System


Fogmaker is a high-pressure fire suppression system utilising water mist specifically developed for engine compartments and enclosed spaces - which is where most fires in vehicles start.

The Fogmaker system is ideal for engine compartments and other enclosed or semi-enclosed spaces, and is particularly suitable for machines where space to mount a storage cylinder is limited,as is the case with most commercial vehicles, construction and underground mining machines.

Our suppression system has a unique extinguishing performance as it both cools down and chokes the fire, at the same time as the foam additive effectively prevents the fire from re-igniting.

Water mist generated under high pressure through patented specialised nozzles, has superior extinguishing capabilities in engine compartments compared to traditional low-pressure foam systems. The special nozzles creates microdrops with an average size of 50 μm. One drop of water typically 1mm in diameter is converted to 8 000 of these micro drops!

How the Fogmaker system works

  1. Accumulator: Containing the extinguishing fluid pressurized to 100-105 bar with nitrogen. The extinguishing fluid and nitrogen is separated by a patented piston.
  2. Distribution system: The accumulator is connected to a distribution system by a high pressure hose and steel pipe. The nozzles are strategically placed within the engine compartment to target high risk parts.
  3. Detector bottle: Provides pressure for the Loss-of-Pressure detection system. Pressurized to between 24 and 31 bar.
  4. Detection tube: Strategically placed within the engine compartment, this polymer tube ruptures when the heat of a fire comes in contact with it.
  5. Patented release valve: The piston accumulator, distribution system and detection systems are inter-linked via the patented valve. This valve keeps the piston accumulator closed when the pressure in the detector bottle is normal.
  6. Detection tube: If there is a fire, the detection tube bursts, the pressure falls in the detection system and the valve in the piston accumulator opens.
  7. Alarm panel: Mounted in the driver compartment provides the driver with information and status of the system.
  8. Patented nozzles: The extinguishing fluid is pressed through the distribution system’s nozzles and a water mist is spread quickly throughout the compartment to be protected.
  9. Audible alarm: Provides the driver and passengers with an audible warning of a fire.
  10. Alarm light: Provides the driver and passengers a visual alarm of a fire.
The Fogmaker Fire Supression System
Typical configuration of the Fogmaker System

1 litre of extinguishing fluid absorbs 540 000 kilocalories and
produces 1700 litres of water mist at the same time.

The Fogmaker system has been developed to suppress fire with the help of three simple but essential mechanisms which control fire

The water mist fire suppression attacks all three components of the fire triangle: Oxygen, Heat and Fuel, as the water mist reaches everywhere within the protected area to ensure the suppression of the fire and the elimination of the factors that could result in re-ignition.


In the evaporation process, the water mist cools the burnt gases and hot surfaces in the engine compartment. One calorie is needed to warm one gram of water by 1 °C but requires 540 times more calories to evaporate the same quantity from + 0 °C to vapour. The effective cooling contributes to a rapid extinguishing and reduces the risk for re-ignition.


The small water drops evaporate immediately upon contact with heat. In the evaporation, 1 litre of water forms 1700 litres of water vapour. The expanding vapour displaces oxygen present in the engine compartment and prevents a new supply of oxygen to the fire.


The Fogmaker system includes a low concentration of environmentally friendly AFFF, (Aqueous Film Forming Foam). This foam coats the fuel, preventing its contact with oxygen, suppressing its combustion.