Co2 Type Fire Extinguisher

FAQ

Q: What types of fires are carbon dioxide fire extinguishers primarily suitable for?

A: Carbon dioxide fire extinguishers are suitable for extinguishing Class A fires involving certain solid surfaces (such as initial surface combustion of paper and wood), Class B liquid fires (such as flammable liquids like gasoline, kerosene, and diesel), Class C gas fires (such as coal gas, natural gas, and liquefied petroleum gas), and Class E electrical equipment fires (such as electrical appliances, instruments, and computers).

Q: How do carbon dioxide fire extinguishers work?

A: They operate on two main principles: first, suffocation. Upon discharge, carbon dioxide rapidly displaces oxygen from the burning area. When the oxygen concentration drops below 12%, the flame extinguishes due to a lack of fuel. Second, cooling. Liquid carbon dioxide vaporizes rapidly upon discharge, absorbing a significant amount of heat, lowering the temperature of the burning material below its ignition point and further suppressing the combustion reaction. This dual effect allows it to quickly control the fire while reducing the risk of rekindling.

Q: What is the effective spray time and spray distance of this fire extinguisher?
A: Specifications vary for different sizes of CO2 fire extinguishers. For example, the 2kg, 3kg, and 5kg sizes are common. The effective spray time of a 2kg extinguisher is approximately 8-10 seconds, with a spray distance of approximately 1.5-2 meters. The effective spray time of a 3kg extinguisher is approximately 10-12 seconds, with a spray distance of approximately 2-2.5 meters. The effective spray time of a 5kg extinguisher is approximately 15-20 seconds, with a spray distance of approximately 2.5-3 meters.