A fire extinguisher consists of a hand-held cylindrical pressure vessel containing an agent which can be discharged to extinguish a fire. Fire extinguishers are classified by their agent type and the size of fire they can extinguish.
An extinguisher designed for use with a dry chemical only (ABC powder) like the one on the left in the figure is pressurized to 195 psi (1,344 kPa). Its gauge is in the green zone indicating that it is ready use.
Pressure of a Fire Extinguisher – The Physics Factbook
Prentice Hall, Upper Saddle River, . "The nitrogen gas inside a fire extinguisher is pressurized to 1345 kPa". 1345 kPa. Fire Extinguisher Safety Tips. Roswell Online 1997. "The pressure inside an extinguisher can be as high as 200 psi". 1379 kPa.
Click to see full answer. Also know, how much pressure is in a fire extinguisher? There is not one set pressure for all fire extinguishers, they vary by class. The ones they use in firehouses are 690 kPa but the pressure in carbon dioxide extinguishers can go up to 5861 kPa.
People Also Ask what is the pressure inside a fire extinguisher
What is the pressure of a fire extinguisher?
There is not one set pressure for all fire extinguishers, they vary by class. The ones they use in firehouses are 690 kPa but the pressure in carbon dioxide extinguishers can go up to 5861 kPa.
How far does a gas fire extinguisher work?
Since the gas disperses quickly, this type of fire extinguisher is only effective from 3 to 8 feet. There is not one set pressure for all fire extinguishers, they vary by class.
What type of gas is used in a fire extinguisher?
They contain an extinguishing agent and use a compressed, non-flammable gas as a propellant. A halon fire extinguisher contains a gas that interrupts the chemical reaction that takes place when fuels burn. A water fire extinguisher contains water and compressed gas and should only be used on Class A fires.
How do you know if a fire extinguisher is ready to use?
Its gauge is in the green zone indicating that it is ready use. The clockwise red zone indicates an overcharged situation that could measure as much as 400 psi (2,758 kPa). A counterclockwise measurement below the safe zone, like the one on the right, means the extinguisher has lost charge and needs to be recharged to be effective.
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Understanding the Stored Pressure Fire Extinguisher Working in detail Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher