co2 Fire Extinguishers
Carbon Dioxide Fire Extinguisher – Firefighting Has Never Been Cool With The Coldest Fire Extinguisher
If being cold means being cool and hip, there is no doubt the carbon dioxide fire extinguisher will be coolest and hippest among extinguishers. Owing to its carbon dioxide content, this type of extinguisher is known to be dangerously cold. Necessary precaution when using carbon dioxide extinguishers. Its metal parts are usually dangerously cold, follow the instruction carefully or have someone show you how to use it.
As the name implies the extinguisher contains carbon dioxide which is a colorless and odorless gas. It is a non-flammable gas at room temperature and is the fourth most abundant gas in the Earth’s atmosphere. Carbon dioxide is as much important to plants as oxygen is to humans. Plants utilize carbon dioxide to produce its own food through photosynthesis which then give off oxygen for animals to consume.
There are other uses for carbon dioxide aside from being a major component in the food-making process of plants. It also has its commercial uses, carbon dioxide is used to carbonate beer and soft drinks. Decaffeinated coffee is produced through the process called supercritical fluid extraction which uses carbon dioxide. Likewise, dry ice which is used in theatrical productions to make artificial stage fogs is also made of carbon dioxide.
The carbon dioxide fire extinguisher is just one the uses of this important gas. This type of extinguisher is an effective deterrent to class B and class C fires. If you are wondering why carbon dioxide extinguishers do not have pressure gauges, this is because carbon dioxide is a condensable gas. You cannot tell how much agent remains in the cylinder by measuring pressure. You can tell the the amount of carbon dioxide in a cylinder by reading the tare weight stamped on it. In order to tell how much gas remains in the cylinder, you only have to subtract the tare weight form the current weight.
Anybody using a carbon dioxide fire extinguisher should be extra careful. Carbon dioxide may cause the following:
Asphyxiation – Avoid releasing gas in an unventilated area, carbon dioxide can lower the oxygen level.
Frostbite – Avoid touching any metal parts where the gas flows through.
Pressure Explosion – Make sure that carbon dioxide extinguishers are stored at room temperature. Storing the cylinders in places where the temperature is likely to increase might cause the extinguisher to explode.
Some people believe that carbon dioxide is visible, they argue that the white mist seen around solid carbon dioxide is the gas itself. This is a misconception since the white mist is not carbon dioxide but water vapor that has condensed from the air. The reason why the color of the discharge from the extinguisher is partly white is condensed water vapor and not carbon dioxide which is colorless.
What makes this type of extinguisher effective in putting out class B and class C fires is its ability to displace or remove oxygen. Likewise, carbon dioxide can dissipate heat from the fuel by its sheer coldness as it comes out from the extinguisher. Its ability to remove two elements from the fire triangle by all means makes it the coolest fire extinguisher.
By: Brian Ayling
Article Directory: http://www.articledashboard.com
Having specialized in the carbon dioxide extinguishers trade for over 20 years, Brian now works tirelessly to promote affordable fire safety for home and for business.
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