A wet chemical fire extinguisher contains ingredients that create a soapy substance when combined with cooking oils that extinguish the flame, cool on contact, and seal the oil to prevent reignition. Remember, you should NEVER use water on a grease or oil fire.
Wet chemical fire extinguisher uses: • Fires involving cooking oils and fats, such as lard, olive oil, butter and vegetable oil (‘class F’ fires) • Fires involving flammable solids, such as paper, wood, and textiles (‘class A’ fires) Some wet chemical fire extinguishers are also cleared for use on class B fires – those involving flammable liquids, such as petrol, diesel, and paint.
Wet chemical fire extinguisher: How it works, colour & Limitation
Wet chemical fire extinguisher colour. Turn off the source of heat if safe to do so. Hold the lance at arm’s length, well above the fire with its nozzle at least 1 Metre away from the fire. Holding the lance still, discharge so that the spraying wet chemical falls gently onto the surface of the …
A wet chemical fire extinguisher is a type of fire extinguisher that contains a non-corrosive and water-based, or watery agent. In contrast to dry chemical extinguishers, they can be used in a wide variety of applications, which makes them the preferred option of many fire service organizations.
People Also Ask a wet chemical fire extinguisher
What is a wet chemical fire extinguisher?
Wet chemical fire extinguisher employs a pressurized solution of alkali salts in water to extinguish fire. It is also known as Class F’ fire extinguishers or class ABF’ fire extinguishers in some versions. Generally, wet chemical extinguishers are suitable for use on Class A & F Fires.
What are the ingredients of a web chemical fire extinguisher?
The ingredients of a web chemical fire extinguisher can consist of a few different chemical combinations: water and potassium acetate, potassium carbonate, and potassium citrate.
What is the function of the fire extinguisher?
In summary, this extinguisher acts in two ways: 1 It produces mist which cools the fire and lowers the temperature to stop the fire spreading, also prevents splashing of… 2 The potassium salts react with the hot oil and causes the process of saponification, coating the surface of the cooking… More …
What type of fire extinguisher is used for cooking oil?
Wet chemical fire extinguisher uses: • Fires involving cooking oils and fats, such as lard, olive oil, butter and vegetable oil (‘class F’ fires) • Fires involving flammable solids, such as paper, wood, and textiles (‘class A’ fires)
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Wet Chemical Fire Extinguisher – Why you need one? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher