Use a portable fire extinguisher when the fire is confined to a small area, such as a wastebasket, and is not growing; everyone has exited the building; the fire department has been called or is being called; and the room is not filled with smoke. To operate a fire extinguisher, remember the word PASS: P ull the pin. Hold the extinguisher with …
The tank contains the extinguishing agent and propellant gas. According to the type of fire extinguisher, the inside can contain water, foam, liquid and gaseous carbon dioxide, or dry powder with compressed nitrogen. A siphon tube runs through the barrel, which allows the liquid or agent to expel out of the hose when pressure is built up.
How do fire extinguishers work? – Explain that Stuff
Inside, a fire extinguisher is quite like a giant aerosol can, often with two different substances inside. One of them is a solid, liquid, or gas substance for fighting the fire. The other one is called a propellant and is a pressurized chemical that makes the fire-fighting substance come out when you press the extinguisher handle. Next time you see a fire extinguisher, …
PASS Step 1: PULL the pin. Many fire extinguishers have a pin near the handle at the top like the one shown in the image below. Begin by removing that pin. In some cases, instead of a pin there’s been a lock latch you’ll have to release or a puncture level you have to press.
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How to use a fire extinguisher correctly?
Fortunately, there’s a simple, 4-step method you can follow to use a fire extinguisher properly. The fire extinguisher steps method is known as PASS, and each letter in the word PASS (P, A, S, and S) stands for the first word of each step. The PASS method works for many common fire extinguishers.
What does a fire extinguisher look like?
Most of the extinguisher is filled with water (blue). A tube runs right up the inside of the tube to a nozzle outside (gray). The nozzle often ends in a piece of bendy plastic so you can easily direct it toward the base of a fire. To operate the extinguisher, you pull the ring and press the handle.
What do the zones on a fire extinguisher mean?
The recharge zone, green zone, and the overcharged zones will help you determine whether the fire extinguisher is leaking, is good to go, or if it needs servicing. Fire extinguishers come in different types according to the class of fire they can be used on.
What are the basic components of a fire extinguisher?
The most basic components in a fire extinguisher would be the cylindrical tank which contains the propellant and the chemical agent used to put out the fire, a valve or lever to release the agent, a pull pin, and a hose to direct the extinguishing agent.
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Using a Fire Extinguisher is Easy! Here’s How … Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher