Foam Fire Suppression System

They are mostly applicable to the protection of two dimensional flammable liquid hazards.

Foam fire suppression system.

In this video fire protection expert lee kaiser discusses foam suppression systems the major characteristics and applications they are most commonly used for. 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. Designing a foam fire suppression system requires special expertise expertise that wormald has developed over many years. High and low pressure co2 system foam used in fire protection is an aggregate of air filled bubbles formed from aqueous solutions and is of lower density than the lightest flammable liquids.

Foam fire extinguishing system. For foam systems foam must be delivered to the fire efficiently and in. The surfactants used must produce foam in concentration of less than 1. Foam water systems generally work by allowing foam concentrate to mix with water flowing into the piping system.

Low expansion where the bubble expansion ratio is small less than 20 to 1 and the bubble contains a high water content. Compressed air foam systems cafs when a wildfire strikes you need the best tools on hand to quickly bring it under control. Foam water spray systems can be used for a combination of class a and class b hazards. Medium and high expansion where the expansion ratios are greater from 20 to 1 up to 1 000 to 1 at these expansion ratios the bubble water content is low and the bubble is relatively light.

Method of operation for foam water spray 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. Foam systems come in two types as follows. Fire suppression foam is comprised of three parts.

Foam concentrate water and air. Every facility has different needs when it comes to fire suppression. 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 suppression systems can be messy and require special strategies and considerations for clean up that other systems do not need.