Carbon Dioxide

Carbon Dioxide Extinguishers

Carbon Dioxide Extinguishers

Carbon dioxide (CO2) extinguishers contain carbon dioxide forced into its liquid state by pressure. This type of extinguisher is available in several sizes from 2.5 to 20 pounds (1.1 to 9 kilos). Discharge times range from 8 to 30 seconds, and the discharge range is from 5 to 8 feet (1.5 to 2.4 meters).

Small carbon dioxide units have a discharge horn attached by tubing , whereas larger units have a discharge horn at the end of a flexible hose. Carbon dioxide extinguishers are also available in wheeled units. Their sizes range from 50 to 100 pounds (22.6 to 45.4 kilos). Their discharge range varies from 3 to 10 feet (0.9 to 3 meters), and their discharge time is from 10 to 30 seconds.

Carbon Dioxide Extinguishers extinguish the fire by taking away (Displacing) the oxygen element of the fire triangle and also by removing heat with a very cold discharge. They can be used on Class B & Class C fires. They are usually ineffective against Class A fires and are not intended for Class A fires. CO2 is not suitable for use on fires containing their own oxygen source, metals, or cooking media, however, it is one on the best agents to use on a person who is on fire.

CO2 extinguishers contain carbon dioxide, a non-flammable gas, and are highly pressurized. The pressure is so great that it is not uncommon for bits of dry ice to shoot out the nozzle. They don’t work very well on class A fires because they may not be able to displace enough oxygen to put the fire out, causing it to re-ignite.

co2-extinguisher-label

co2-extinguisher-label

CO2 extinguishers have an advantage over dry chemical extinguishers since they don’t leave a harmful residue – a good choice for an electrical fire on a computer or other favorite electronic device such as a stereo or TV.

A Carbon Dioxide(CO2) Extinguisher

A Carbon Dioxide(CO2) Extinguisher

Cross Section of CO2 Extinguisher

Cross Section of CO2 Extinguisher

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