Foam Type Fire Suppression System

When mixed correctly these parts form a homogeneous foam blanket that extinguishes flames by the combined mechanisms of cooling separating the flame source from the product surface suppressing vapors and smothering.

Foam type fire suppression system.

Foam fire suppression comes in a variety of systems. The size of the facility the hazard area to be protected the authority having jurisdiction and the assets being protected all play a big role in deciding what fire suppression system to use. Every facility has different needs when it comes to fire suppression. Medium and high expansion where the expansion ratios are greater from 20 to 1 up to 1 000 to 1.

The surfactants used must produce foam in concentration of less than 1. A combination of an automatic sprinkler system and a low level high expansion foam system. For example in 2014 a civilian worker at eglin air force base died after being trapped in a foam filled hangar during an inadvertent system discharge. Supplementary protection systems are designed to cover the.

Low expansion where the bubble expansion ratio is small less than 20 to 1 and the bubble contains a high water content. Foam water systems generally work by allowing foam concentrate to mix with water flowing into the piping system. Other components of fire retardant foams are. Fire suppression foam is comprised of three parts.

The application technique and performance factors are the same for both the 3 and the 3 6 types of ar afff concentrates. Firefighting foam is a foam used for fire suppression its role is to cool the fire and to coat the fuel preventing its contact with oxygen resulting in suppression of the combustion fire fighting foam was invented by the russian engineer and chemist aleksandr loran in 1902. If fire protection option 1 is used a foam water deluge system in hangars housing aircraft with a wingspan area of greater than 3 000 square feet supplemental protection is also required. They are mostly applicable to the protection of two dimensional flammable liquid hazards.

When a hangar foam fire suppression system inadvertently discharges the results can be damaging or even deadly. At these expansion ratios the bubble water. The intensity of the fire distance the foam must be thrown and the application rate also play an important part in determining the type of nozzle and method of extinguishment. One example is the ansul foam fire suppression system.

Foam water spray systems can be used for a combination of class a and class b hazards. Method of operation for foam water spray systems.