Foam fire extinguishers work in 2 ways. AFFF works by smothering the fire and sealing in the flammable vapours. This prevents the fire re-igniting. It also allows foam fire extinguishers to put out flammable liquid fires, by creating a barrier between the liquid’s surface and the flames.
Aqueous Film Forming Foam – AFFF extinguishes flammable liquid fires by forming an aqueous film on the surface of the liquid solutions. This type of extinguisher is particularly useful for a fire that may not be affected by water. The AFFF can quickly bring a fire under control.
AFFF Fire Extinguisher | All Florida Fire Equipment
In the case of AFFF, with an expansion rate of less than 20x its initial volume, it’s considered a low-expansion foam and is best used for fire spread across large areas. AFFF fire extinguishers are designed to be very mobile, allowing the …
Water-Type Fire Extinguishers contain Water and/or Water-based agents, such as Aqueous Film-Forming Foam (AFFF), Film-Forming Fluoroprotein Foam (FFFP), and Antifreeze. These fire extinguishers leave no powder residue and are effective on Class A and some Class B fires. There are two basic types of water-type fire extinguishers, Loaded Stream, and Foam. We also offer …
People Also Ask a fff fire extinguisher
What is an AFFF fire extinguisher?
Foam (AFFF – Aqueous Film Forming Foam) Fire Extinguishers are suitable for use on Class A (wood, paper, material & cloth) Fires & Class B (Flammable liquids: spirits, diesel, petrol etc.) Fires. When released, the foam forms a seal over the fire which prevents re-ignition.
What is FFFP foam fire extinguisher used for?
An FFFP Foam fire extinguisher is effective on Class A and Class B fires. FFFP is an alcohol resistant agent making it effective on Class B fires involving alcohols, polar solvents, hydrocarbons, and combinations of these. It can be applied to Class B liquid spills to prevent ignition.
What type of fire extinguishers leave no powder residue?
These fire extinguishers leave no powder residue and are effective on Class A and some Class B fires. There are two basic types of water-type fire extinguishers, Loaded Stream, and Foam. We also offer Water Mist fire extinguishers.
What is the best fire extinguisher for -40F?
An anti-freeze charge can be added to provide freeze protection to -40F. An AFFF Foam fire extinguisher is effective on Class A and Class B fires. It can be applied to Class B liquid spills to prevent ignition. They are ideal for emergency first response vehicles.
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Fire Safety Training – How to Use a FOAM Fire Extinguisher Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher