Short clip on how to correctly and safely use a co2 based fire extinguisher. Carbon dioxide extinguishers are filled with nonflammable carbon dioxide gas under extreme pressure. Check that the extinguisher you intend to use is suitable for the type of fire encountered eg a water extinguisher must never be used on any fire involving electrical equipment. The class k fire extinguisher is required in every commercial kitchen as it is ideally suited to supplement the commercial kitchen fire suppression system. Only use co2 extinguishers with frostfree horns, as the hand holding the horn can otherwise. Co2 carbon dioxide fire extinguishers contain pressurised co2 gas and are suitable for use on fires involving flammable liquids and is also a good solution for tackling fires involving computer equipment and other electrical appliances. An advantage of carbon dioxide is that it leaves no residue after the fire is extinguished. Just like a typical abc fire extinguisher, it is important to fire the co2 extinguisher using the p. The ring pin and visual seal help prevent unwanted discharge of the extinguisher. Carbon dioxide extinguishers contain liquid co2 that is expelled as a gas. Co2 fire extinguishers are ideal for use on electrical fires and sensitive electrical equipment computers, tvs, server rooms, distribution boards. Co2 cylinders have a distinctive horn, which acts as a diffuser to ensure the gas is directed precisely where you need it.
No gauge is fitted so you will have to measure its weight to check it has not lost co2. Class a fires are fires in ordinary combustibles such as wood, paper, cloth, rubber, and many plastics. The powder also works to interrupt the chemical reaction of fire, so these extinguishers are extremely effective at putting out fire. Ansul carbon dioxide fire extinguishers are designed to protect areas where class b flammable liquids and gases or class c energized electrical equipment fires could occur.
Carbon dioxide gas is also what creates the firedamping foam in some fire extinguishers. Carbon dioxide co2 fire extinguishers wormald australia. When electrical equipment is not energized, extinguishers for class a or b fires may be used. Its a vital component of both photosynthesis and cellular respiration. Fire extinguishers can stop fire in its tracks, especially if you know the ins and outs of proper fire extinguisher selection, placement, and use. Kidde 466180 pro 5 carbon dioxide, food and electronic safe. When you put the carbon dioxide on a fire, the fire cant get the oxygen it needs to burn, so it goes out.
Kidde 466181 pro 10 carbon dioxide fire extinguisher, electronic safe, environmentally. Both carbon dioxide and dry chemicals can be used for electrical fires. Co2 fire extinguisher did you know that fire doesnt like carbon dioxide. Fumes from co2 extinguishers can asphyxiate if used in confined spaces. Carbon dioxide co2 fire extinguishers are suitable for use on class b and e type fires and are approved to asnzs 1841.
Buckeye 45100 carbon dioxide hand held fire extinguisher with wall hook, 5 lbs agent. Can you explain why carbon dioxide foam would make a good fire extinguisher. Carbon dioxide is discharged as a white cloud of snow which smothers a fire by eliminating oxygen. Carbon dioxide extinguishers a colorless, odorless, electrically nonconductive inert gas that is a suitable medium for extinguishing class b and class c fires. Carbon dioxide is a nonconductive and noncorrosive gas used to reduce the amount of oxygen available to the fire. Carbon dioxide extinguishers are effective against class b and c fires. Why is carbon dioxide used for fire extinguishers answers. Fire extinguishers, carbon dioxide, cartoon, clip art, fire. However, they can sometimes be found paired alongside foam extinguishers, as they can be used on class b fires.
Three types of extinguishing agents are typically usedcarbon dioxide, dry chemical, and foam water for fires involving flammable liquids, greases, and oils. Without oxygen available to fuel the chemical reaction, the fire goes out quickly. The most noticeable difference between a water extinguisher and one that fires carbon dioxide is the large, black, coneshaped horn, which allows the carbon dioxide gas to expand, cool, and turn into a mixture of frozen snow and gas. The easy grip handle provides nonslip holding and quick activation of the extinguisher. Environmental protection agency policy and approved for publication and distribution. Co2 fire extinguishers discharge co2 gas, also known as carbon dioxide. Kidde 466181 pro 10 carbon dioxide fire extinguisher, electronic safe, environmentally safe, ul rated 10b. It seems well made and hopefully will never need to be used. The co2 in a fire extinguisher is actually in liquid form under pressure 830 psig at room temp when you release the liquid co2 the liquid vaporizes as it expands and the latent heat of vaporization cools th. In this athome science video, watch how kelsey makes carbon dioxide with common kitchen materials, and how you can use that creation to put out a small flame. Vsafety carbon dioxide co2 id fire extinguisher sign 75mm x 200mm 1mm rigid plastic. Fire extinguisher clip art, png, 4756x8170px, fire. Wormald offers a range of co2 type extinguishers including 2kg, 3. Bought in the hope of never having to use but positioned just in case.
This type of extinguisher does not cool the fire very well and you need to ensure that the fire does not start up again. Fire extinguisher, carbon dioxide, class bc, ul rating 10b. The extinguishing agent in a class c fire extinguisher must be electrically nonconductive. Pros and cons of fire extinguisher types fire products. It extinguishes primarily through a smothering action by establishing a cover between the fuel and the surrounding air. The gas present in the vapour space above the liquefied co 2 itself acts as the propellant. Ideal for computer rooms, telecommunication hubs, cleanrooms and electronic motors. Proline carbon dioxide fire extinguishers, 850 psi. Its therefore a clean gas, meaning it leaves no trace of. Carbon dioxide fire extinguishers, usually known as co2 fire extinguishers, are a highly effective extinguisher for use on fires involving electrical equipment. Co2 fire extinguishers all you need to know about co2. A carbon dioxide co 2 fire extinguisher is a firefighting tool that is loaded with pressurized carbon dioxide gas.
User jamana uploaded this extinguisher fire extinguisher clip art png image on march 29, 2017, 12. Carbon dioxide blankets a fire, because of its heaviness, relative to air. This gas expands very rapidly when a person deploys the device to smother a fire, limiting the fires supply of oxygen. Optical sensors are used to detect fires and explosions instantly, which then directs a series of jets and hoses to put out the fire with a concealed substance. It acts by preventing oxygen from getting to the fire, the result, the burning fuel deprived of the oxygen. Carbon dioxide is extracted from the atmosphere and stored at high pressure in the liquid state within a fire extinguisher. Not only does it cut off the oxygen, the carbon dioxide that comes out of. Co 2 extinguisher contains liquefied carbon dioxide.
These extinguishers will be found in a variety of locations. Do not use co2 extinguishers in very small spaces, as there is a risk of asphyxiation. If you use the wrong type of fire extinguisher on the wrong class of fire. It doesnt react with burning materials, so it doesnt create any toxic or other byproducts when used to suppress a fire. Carbon dioxide, otherwise known by its chemical shorthand co2, is a naturally occurring gas thats present in the air we breathe. The pressure in the cylinder is so great that when you use one of these extinguishers, bits of dry ice may shoot out the horn. Many hardware and home supply stores sell carbon dioxide fire extinguishers and it is also possible to install a co 2 fire suppression. Carbon dioxide extinguishers work because carbon dioxide molecules are heavier than oxygen molecules. Can we use solid carbon dioxide in fire extinguisher. Carbon dioxide fire extinguishers should only be pointed at fires and used on fires. Co2 is a colorless and, in normal concentrations, odorless gas. When the baking soda and vinegar mix they create a gas known as carbon dioxide. It occurs naturally in earths atmosphere as a trace gas.
Lifting the extinguisher by the handle will not activate the co2 stream. Carbon dioxide is a clean, noncontaminating, odorless gas. Great value for money and comes with a fixing bracket. Carbon dioxide fire extinguishers extinguish fire by taking away the oxygen element of the fire triangle and also be removing the heat with a very cold discharge.
Per nfpa 10, burning may be classified into one or more of the following fire classes and your fire protection specialist will select the right fire extinguisher size and agent for the hazard. Standing up to 10 feet away from the fire, point the extinguisher discharge horn at the front edge of the base of the fire the lowest point of the fire nearest you. Class c extinguishers are usually carbon dioxide extinguishers used on electrical equipment fires. Carbon dioxide extinguishers are the perfect choice for class e fires involving electrical equipment. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. The low weight of the extinguishers contents makes it easy to control. The vehicles use safety equipment, including fire suppression gear, made by amerex for oshkosh vehicles. This is stored in the extinguisher as a liquid, and the gas is created under pressure when the handle of the extinguisher is squeezed. The resolution of this file is 4756x8170px and its file size is.
The extinguisher nameplate label contains specific information on how to use the particular extinguisher. Here are the top 5 things to know about carbon dioxide extinguishers. Carbon dioxide consists of a carbon atom covalently double bonded to two oxygen atoms. Kidde 466180 pro 5 carbon dioxide, food and electronic safe, environmentally safe, fire extinguisher, ul rated 5b. It is effective for class b flammable liquids and is electrically nonconductive. Also known as a carbon dioxide fire extinguisher, these are the fire extinguisher of choice when it comes to electrical fires. The discharge stream could spread the flammable liquid in a class b fire or could create a shock hazard on a class c fire. Top 5 things to know about carbon dioxide extinguishers. Why do we use carbon dioxide in fire extinguishers. Amerex 322, 5lb carbon dioxide class b c fire extinguisher. For example, a 6lt foam has the extinguishing capability of a 9lt water. What should a carbon dioxide fire extinguisher be used on. Foam suitable for class a and b fires class a combustible solids paper, wood class b flammable liquids petrol, diesel, spirits, paint pros higher a rating than water, so more effective on combustible solids. Carbon dioxide co2 fire extinguisher fire equipment online.
Its movable nozzle helps you cover a wide area without having to move the can, making it easy to point directly at the fire. Carbon dioxide extinguishers are filled with a highly pressurized carbon dioxide. So no separate cartridge is used in co 2 extinguisher. Fire extinguisher an overview sciencedirect topics. Co2 fire extinguishers are mainly aimed at electrical fires but are also suitable for class b liquid fires and are used in different ways depending on the type of fire they are being used on. Carbon dioxide stored pressure extinguishers amerex fire.
Safe operating of fire extinguishers fire and rescue nsw. The carbon dioxide fire extinguisher is used in b and c type fire, involving flammable liquids and electronic equipment. Carbon dioxide co2 fire extinguishers fire protection. You can recognize a co2 extinguisher by its hard horn and lack of pressure gauge. Remember extinguishers are designed to be operated in an upright position. Easy to use simply pull the pin and squeeze the handle to use this proline carbon dioxide fire extinguisher. When the liquid carbon dioxide inside the extinguisher expands into a gas, the carbon dioxide pushes out any oxygen surrounding the fire. Carbon dioxide chemical formula co 2 is a colorless gas with a density about 60% higher than that of dry air. When using a carbon dioxide extinguisher, you should stand 3 to 6 ft away from the fire to gain the maximum effectiveness. Also, with the emergence of smaller wet chemical fire extinguishers, households are starting to use these. There are a number of different types of portable fire extinguishers, each can be identified by the colour coding and labelling.
This carbon dioxide extinguisher contains an average of 5 pounds of fire. Book depository books with free delivery worldwide. Dry chemical extinguishers put out fire by coating the fuel with a thin layer of dust, separating the fuel from the oxygen in the air. The only proper use of a carbon dioxide fire extinguisher is to put out fires. Carbon dioxide pressurized waterfoam dry powder wet chemical clean agent. Carbon dioxide extinguishers are filled with nonflammable carbon dioxide gas under.
265 1022 1201 825 1005 157 454 893 1414 825 1263 1190 157 1557 1485 100 538 823 896 1288 644 407 1419 576 450 1216 729 925 684 169 175 675 1599 1513 321 1000 433 671 578 273 1142 1349 736 921 1494 52 1198