As mentioned above, this type of extinguisher uses carbon dioxide as its primary fire extinguishing agent. The carbon dioxide is stored in the device in its liquid state. When you discharge the device, the carbon dioxide in its liquid form is expelled into the air.
How is carbon dioxide stored in extinguishers?
CO2 fire extinguishers discharge CO2 gas, also known as carbon dioxide. This is stored in the extinguisher as a liquid, and the gas is created under pressure when the handle of the extinguisher is squeezed.
Why is the CO2 kept Pressurised in the fire extinguisher?
CO2 fire extinguishers contain carbon dioxide gas (CO2) under very high pressure (about 55 bar at room temperature) and can be easily recognised by their flute-shaped discharge horn. … CO2 fire extinguishers suppress fires by replacing oxygen, without which there can be no fire, with the inert CO2 gas.
How do I know if my fire extinguisher is CO2?
Carbon Dioxide (CO2) Fire Extinguishers are distinguished by a black coloured band around the top of the cylinder. Carbon dioxide is a non-conductive and non-corrosive gas used to reduce the amount of oxygen available to the fire.
What is the difference between ABC and CO2 fire extinguisher?
CO2s are designed for Class B and C (flammable liquid and electrical) fires only. Carbon Dioxide is a non-flammable gas that extinguishes fire by displacing oxygen, or taking away the oxygen element of the fire triangle.
What is the effective range of a CO2 extinguisher?
To be most effective, a carbon dioxide fire extinguisher should be used no closer than 3 feet and no further than 8 feet from the fire itself.