Most firefighting foams use regular air. Before air is introduced, the liquid foam product is proportioned into water either ahead of time or as it flows through the fire house.
Air is mixed with the foam/water solution either at the nozzle or by using an air compressor (Compressed-Air Foam System(CAFS))
AFFF stands for Aqueous Film-Forming Foam. It is used by fire fighters for the suppression of a fire where fuel is involved. It does this by coating the fuel and preventing oxygen enabling combustion.
fire retardants used in the foam are trimethyltrimethylene glycol and hexylene glycol.
Fire fighting foam is used to smuther fires. The foam will work as a blanket on the fire to prevent oxygen and flames from re-igniting the area. Foam is best used on oil or gas spills but my fire department uses it for anything on fire to get the job done right and fast. Fire fighting foam is used to smuther fires. The foam will work as a blanket on the fire to prevent oxygen and flames from re-igniting the area. Foam is best used on oil or gas spills but my fire department uses it for anything on fire to get the job done right and fast.
foam is used for fire suppression. what it does is it cools the fire and to coats the fuel, preventing its contact with oxygen, and then the fire is out.
Carbon dioxide. It will smother the fire.
No. Fire extinguishers use a dry powder to smother the fire. Firefighters use two types of foam that can be broken down into more categories. A class "A" foam is actually a type of soap. It is used to break up water tension so that water can seep into the ground and/or fuel better. A class "B" foam is used to make a blanket that smothers gasoline or diesel type fires.
powder or foam :)
foam fire extinguisher or a fire retardant spray
Expanding foam should not be used in areas where it can come into contact with heat sources, as it is flammable and can pose a fire hazard.
which gas helps to make the foam that firefighters use
Using a foam fire extinguisher on a liquid fire can be effective, as foam is designed to smother flames and create a barrier between the fuel and the air. However, it's crucial to ensure that the liquid is compatible with foam extinguishing agents, as some flammable liquids may react adversely. If the foam does not properly cover the fuel, it might spread the fire instead of extinguishing it. Always check the fire classification and use the appropriate extinguisher for the specific type of fire.
well the tank that holds the foam is compressed with co2 but what actually makes the foam is the nozzle it acts as an aerator and thus making the liquid into foam ----------------------------------------- Air is the most simple example of gas used in foam fire extinguishers.