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Heavy Equipment System - Why Use Foam ??
Why use Foam? Current theory on fire fighting proposes that for fire to continue, it must maintain the fundamental components of Heat, Oxygen and Fuel. If any one of these components is reduced adequately or eliminated, then fire will not continue. It follows therefore that fire fighting agents are specifically designed to control or eliminate one or more of these key components.
The ETI Foam Fire Suppression System utilises high grade AFFF at a 6% concentrate. AFFF is the leading agent used to fight large Class B (fuels and oils) flammable liquid fires and is used throughout the world typically in oil refineries, oil tank storage facilities, fuel depots and mobile applications. With a 94% water composition, AFFF is also effective in controlling Class A fires (normal combustibles, wood, plastic, paper etc.)
Aqueous Film Forming Foam (AFFF) offers several advantages in the control of fires:
. When applied to fires, foams form a film on top of the fuel surface. This process creates an effective vapour seal, denying any oxygen supply to the fuel surface;
. As the concentrate is mixed with 94% water, the foam solution is able to provide a strong cooling effect and, in doing so, becomes a critical factor in stabilising the suppression performance. The cooling effect also aides in preventing re-ignition;
. Foams are able to flow under gravity to follow and cover fuel spills;
. The use of foam avoids powder compaction problems that are commonly associated with Dry Chemical Powder (DCP) systems due to vibration;
. Longer discharge times are possible using foam;
. Foams are not hazardous to personnel and equipment can be serviced on site;
. Extensive field testing has shown that AFFF is highly effective in extinguishing Class A & Class B fires
. Environmentally friendly. AFFF is biodegradeable and has a negligible impact for nutrient loading.
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Why Use Foam ?
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