How does foam extinguish fire

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). AFFF works by smothering the fire and sealing in the …

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’.

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How does a Foam Fire Suppression System Work?

Foam suppression systems extinguish fire by separating the fuel from the oxygen. In more technical terms, these systems are used to “cool the …

The use of fire fighting foam concentrate prevents fuel contact with oxygen, resulting in fire suppression. It also has a high cooling effect and will avoid reignition. To extinguish a fire, firefighting foam acts in two phases: Separation …

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How do foam fire extinguishers work?

How foam fire extinguishers works: 1 They are mainly water-based and so have the same cooling effect as water extinguishers, putting the fire out by lowering… 2 They contain ‘Aqueous Film Forming Foam’ (this is why they are also known as AFFF foam extinguishers). More …

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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:

When should I not use a foam fire extinguisher?

Do not use foam fire extinguishers for: • Cooking fires involving oil and grease, such as chip pan fires (‘class F’ fires) • Fires involving flammable gases, like methane and butane (‘class C’ fires)

What is a foam fire suppression system?

A foam fire suppression system is a type of wet sprinkler system that combines both water and a foaming agent for large scale fire extinguishment. This water-based fire sprinkler suppression system can extinguish extensive fires in mere seconds with incredible efficiency.

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How Foams Extinguish Fires Video Answer


Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher

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