Fogmaker Southern Africa
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Effective fire suppression system for mobile equipment

Using high pressure water mist, FOGMAKER's fire suppression system has been developed specifically for engine compartments and semi-enclosed spaces - which is where the vast majority of fires in mobile equipment and vehicles start.

The FOGMAKER system is particularly suitable for machines where space to mount a storage cylinder is limited, as is the case with most industrial machines.

Fogmaker attacks all three mechanisms of fire

FOGMAKER fire suppression systems effectively attack
all three sides of the fire triangle

A fire requires three elements to sustain combustion - oxygen, heat and fuel. Removing one of these elements from the environment will extinguish the fire. The majority of fire suppression system’s approach is to remove oxygen from the fire zone and thus suffocate the fire. However, this is often a temporary situation: as air and oxygen return to the fire zone, with the presence of the all three elements, the fire often re-ignites.

 Oxygen

Micro droplets of water based extinguishant are generated by patented nozzles under high pressure. These droplets flood the area being protected and evaporate immediately when they come into contact with heat. During the evaporation process,1 litre of water will expand into 1700 litres of water vapour. This rapid expansion process displaces air and prevents oxygen supply to the fire.

 Heat

During the vaporization process the water mist cools the hot gases and hot surfaces in the engine compartment. It takes 1 calorie to heat up one gram of water by 1°C, but 540 times more energy to evaporate the same amount of water. Through this vaporization process effective cooling is achieved reducing the risk of re ignition.

 Fuel

FOGMAKER suppressant also includes, in low concentrations, an Aqueous Film Forming Foam (AFFF). This forms a protective barrier on the surface of any flammable material or fuel, thus preventing the fuel from being available for combustion.

We call this unique competence - Triple Action3

FOGMAKER in Action

 
 

How does the FOGMAKER system work?

Typical configuration of the FOGMAKER System

Fomaker Fire Mist System

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

With reference to Figure 1

  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.