foam generators
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Foam Generators (FCH *-250 are designed to expand foam solution into millions of tiny bubbles in which the foam solution is expanded in volume to a range of more than 200:1 approximately depending on the generator selected, solution flow rate, foam concentrate and the operating pressure. The extinguishing mechanisms of FOAMTECH HX Foam Generator (FCH* -250) involve a combination of the following: Free air movement essential for continued combustion is reduced. Water content of the foam being converted to steam dilutes the oxygen concentration to a level below that necessary to support combustion. Reduced surface tension of the foam solution draining from expanded foam penetrates into Class A materials extinguishing deep seated fires. Cooling to a temperature below the combustion point or auto- ignition temperature of Class A or Class B fuels occurs as water is converted to steam. Insulating and heat reflective properties of the foam blanket provide a heat shield preventing fire spread extinguishing deep seated fires.