How foam fire extinguishers works: Foam fire extinguishers work in 2 ways. They are mainly water-based and so have the same cooling effect as water extinguishers, putting the fire out by lowering the temperature. They contain ‘Aqueous Film Forming Foam’ (this is why they are also known as AFFF foam extinguishers).
Foam fire extinguishers, also called aqueous film-forming foam or AFFFs, have the added benefit of producing more sprayable contents compared to a similar sized water fire extinguisher. The foam mixture produces more spray quantity than water alone because it expands when mixed, which makes these very effective fire extinguishers. They excel at …
Foam fire extinguishers – colours and uses explained
Also known as: • AFFF foam fire extinguishers. • AFFF fire extinguishers. • Spray foam fire extinguishers. • CREAM coloured label printed on the body stating ‘Foam’. • Should be identified by an extinguisher ID sign fixed nearby – ‘Foam Extinguisher’.
How do fire extinguishers work? Water extinguishers. A water extinguisher is like a giant water pistol, but instead of using pressure from your …
People Also Ask how do foam fire extinguisher work
How do foam extinguishers work?
They work by smothering the fire: when you spread a thin layer of foam over a fire, you cut the fuel off from the oxygen around it. Foam extinguishers also help to absorb heat, since the cool foam they release contains a lot of water.
Is a foam fire extinguisher good for general use?
Summary: A foam fire extinguisher is a good for general use, suitable for the majority of business premises. What is a foam fire extinguisher used for?
How do I identify a foam fire extinguisher?
How to identify a foam fire extinguisher: • CREAM coloured label printed on the body stating ‘Foam’ • Should be identified by an extinguisher ID sign fixed nearby – ‘Foam Extinguisher’ Sizes of foam fire extinguisher available:
How does a dry fire extinguisher work?
Dry chemical extinguishers are tanks of foam or dry powder with compressed nitrogen as the propellant. They work by smothering the fire: when you put a layer of powder or foam on the fire, you cut the fuel off from the oxygen around it, and the fire goes out.
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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