According to How Stuff Works, fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the …
The fire extinguisher is sealed by a sophisticated valve mechanism to maintain the required pressure, which is indicated by a pressure gauge on the valve body. CO2 is only released when the safety pin or clip is …
Why Is Carbon Dioxide Used in Fire Extinguishers? | eHow
Among its many uses, CO2 has the ability to put out flames and is therefore used as the extinguishing agent in both portable and fixed-installation fire extinguishers. An examination of its properties and uses shows why it’s a …
How CO2 fire extinguishers work: 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 …
People Also Ask why is pressure co2 used in fire extinguishers
Why is CO2 used in fire extinguishers?
This gas is essential to life on earth: It’s a vital component of both photosynthesis and cellular respiration. Among its many uses, CO2 has the ability to put out flames and is therefore used as the extinguishing agent in both portable and fixed-installation fire extinguishers.
How does a fire extinguisher compare to a pressure cooker?
By comparison, pressure cookers operate at 1 bar of pressure, modern car tyres are usually inflated to a maximum of 2.5 bars, whilst airliner tyres are inflated at up to 14 bars. At a pressure of 55bars, around two-thirds of a carbon dioxide fire extinguisher’s contents are in a liquid state, with a gaseous top layer.
Why are fire extinguishers not suitable for chemical fires?
These extinguishers are not suitable for chemical or electrical fires since the liquid can conduct electricity and cause flammable agents to spread. Other extinguishers coat the fuel, forming a barrier between the flammable material and the oxygen in the surrounding air.
How do you identify a CO2 extinguisher?
How to identify a CO2 extinguisher: • BLACK coloured label stating ‘CO2’. • The nozzle ends in a distinctive black ‘horn’. • Should be identified by an extinguisher ID sign fixed nearby – ‘CO2 Extinguisher’.
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why Carbon dioxide is used in fire extinguisher? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher