Foam concentrate water and air.
Fire suppression foam.
Fire suppression foam is comprised of three parts.
The surfactants used must produce foam in concentration of less than 1.
Other components of fire retardant foams are.
At these expansion ratios the bubble water.
Fire suppression system malfunctions in a 787 hangar.
Medium and high expansion where the expansion ratios are greater from 20 to 1 up to 1 000 to 1.
Designing a foam fire suppression system requires special expertise expertise that wormald has developed over many years.
Foam systems come in two types as follows.
Video shows a fire suppression system malfunction that covered two boeing 787s in foam.
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.
The foam is seen spraying directly on the aircraft and some other equipment.
Full suppression top tier reliability with prices below gsa pricing high efficiency fire suppression foam designed to cool and coat fuel while suppressing the combustion of class b fires and flammable liquids.
Low expansion where the bubble expansion ratio is small less than 20 to 1 and the bubble contains a high water content.
Class b fire foam.
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.