High Expansion Foam Concentrate and water are mixed in the correct proportion by various methods to form a foam solution. This solution flows to the High Expansion Foam Generator (HEFG) with awater powered motor. It is then discharged through a nozzle onto a fine mesh stainless steel screen. A rotating fan (powered by the water motor) in the generator forces large volumes of air through the stainless steel screen as the foam solution is sprayed onto it. The air mixes with the foam solution to form a large discharging mass of stable bubbles at a rate of up to 940 gallons of expanded foam for each gallon of foam solution. This clean highly expanded foam mass quickly fills large areas flowing around obstacles and flooding every void smothering the fire quickly and effectively.











