Note that there are also other metals with combustive properties you may encounter. Whether a fire extinguisher must be present in your company is determined in the Risk Inventory & Evaluation. Different Types of Fire Extinguisher. Today's most widely used type of fire extinguisher is the multipurpose dry chemical that is effective on Class A, B, and C fires. However, be careful with the powder Mono Ammonium phosphate. Knowing the types of fire extinguishers and how to use them effectively can mean the difference between preventing a small fire from spreading and allowing a fire to perpetuate causing terrible destruction or even death. Technically a type of liquid fire, Class K fires are distinct enough to warrant their own classification. They also have a distinct type of hose. A Class K fire is defined as a cooking fire involving combustion from liquids used in food preparation. In other words, they are a multi purpose fire extinguisher. Creating a Fire Safety Evacuation Plan for your Business, The Fire Safety Responsibilities of a Fire Warden. They also discharge gently, stopping the burning oils and fats from being pushed and splashing to surrounding areas or even the user. In this blog we’ll tell you all about each different type of fire extinguisher and what materials and fires they’re best suited to tackle. Fire extinguishers should be checked regularly to ensure that pressure levels are maintained. Each type of fire extinguisher contains different materials that make them suitable for fighting certain types of fires, and is designed to safely and effectively discharge its contents. To extinguish such fires you cut the power off and use non-conductive chemicals to extinguish the fire. The five types of extinguishers are: Class A -- flammable solids. L2 contains ‘L’ for lithium). Every business is different and so are the potential dangers they face. Trash fires are one such example. When confronted with such a fire, common extinguishing agents such as water are ineffective and can be hazardous. Let’s take a look at each type of fire extinguisher, their uses, and their risks below. L2 is suitable for all types of metal fires, whereas M28 cannot be used on lithium (need a way to remember that? This type of extinguisher does not cool the fire very well and you need to ensure that the fire does not start up again. There are a range of different fire extinguishing agents that are designed to smother different classes of fire. By understanding what each fire class means, you can understand which fire types are a safety hazard at your business. The Class B fire is defined as one that uses a flammable liquid or gas as its fuel base. Aim at the base of the fire, not the flames. These types of fire extinguishers will be solid red and will have the words ‘water mist’ printed within a white rectangle. Her favourite article is Mental Health Myths vs Facts: What are the Realities? However, be aware that combustible metals are used as part of production and other industry processes, and you need to be certain of what materials you are using for day-to-day operations. Most foam extinguishers will have had dielectrical tests performed on them, so foam is less hazardous than water if it is accidentally sprayed on live electrical equipment. Class B fires are a common hazard in industries dealing with fuels, lubricants, and certain types of paint. The best method of application is to spray in slow circular motions. Once you are aware of what types of fires your business may encounter, you can buy the proper extinguisher for protecting against them. The common fire extinguisher is one of the most well known and widely used safety tools. Dry Powder extinguishers can be used on most fire types including electrical devices. These will be solid red and will have the word ‘water’ or ‘aqua spray’ printed across them in white text. There are different types of fire extinguishers because there are various types of fires. They remove either the air, fuel or heat (or all) component in the fire. Cooking fires are fueled by a wide range of liquid cooking materials. Corporate Office Fire Safety – What Are the Five Types of Fire Extinguishers? Also bear in mind that while carbon dioxide is effective at smothering fires, once the gas has floated away, the fire may reignite if the source has not been removed. These fire extinguishers are used for fires involving any combustible materials. Class K fires are naturally of concern in the food service and restaurant industry. This could cause the fire to be pushed and spread to surrounding areas. Common liquid based fuel sources include petroleum based oils and paints, kerosene, and gasoline. A large part of safety is being prepared for accidents and emergencies such as a fire. Fire extinguishers are one of the most commonly used fire safety devices out there, so they’ll be a familiar sight. There 5 different type of fire extinguishers - not including fire blankets. Wood, fabric, paper, trash ,and plastics are common sources of Class A fires. There are three types of powder extinguisher: ABC powder, M28 powder, and L2 powder. Class B -- flammable liquids, such as gasoline. Dry water mist extinguishers are unique in that they can combat almost all types of fires, including class F fires that are usually difficult to attack. That means the fire extinguishers removes 1+ of these criteria. Use this acronym as a quick reference P.A.S.S. This absorbs the heat the fire requires to burn and smothers it as well. The Class C fire is defined as a fire that uses electrical components and/or energized equipment as its fuel source. Tweet on Twitter . The extinguisher’s nozzle converts water into ‘dry’ microscopic particles, which are then drawn into the fire and simultaneously cool and suffocate it to extinguish the flames. Mental Health Myths vs Facts: What are the Realities? Dry chemical extinguishers, … These types of fire extinguishers are identifiable by the words ‘wet chemical’ printed across a yellow rectangle. Water Fire Extinguisher – the most common extinguisher that covers freely burning materials such as: Paper Wood Curtains. To ensure you’re adequately protected, and you meet current fire safety regulations, you need to have the right types of fire extinguisher for your business premises. The fire extinguishers in New Zealand are a little different from the ones you find in other countries. For example, using a water extinguisher on an electrical fire or a carbon dioxide one on a burning oil fire is extremely dangerous. Because they do not leave any substances behind and so minimise damage done to equipment, unlike other extinguishers, they are particularly useful for offices and workshops where electrical fires may occur. By being aware of the five classes of fires, you can be sure that you are purchasing safety equipment that will be effective should an accident or emergency occur. This prevents the fire from spreading to other flammable materials and smothers the fire to prevent oxygen from reacting with the metal again. Due to their non-conductive nature, they are also suitable for fighting electrical fires. The gas becomes extremely cold during its discharge and so this could damage your hands. Greases, cooking oils, vegetable fat, and animal fat are all fuel sources found in Class K fires. Class A fires are commonly put out with water or monoammonium phosphate. Fire extinguishers are no different. Throughout this article, we will explain the different classes of fires, the symbols that identify these, and the different types of extinguishers and their uses. Such fires can be very dangerous and far more destructive than you may think. There are 5 main fire extinguisher types – Water, Foam, Dry Powder, CO2 and Wet Chemical. The correct one must be used for the right class of fire, otherwise they may prove ineffective or in fact worsen the situation. The Class D fire is defined as one that uses a combustible metal as its fuel source. Types of Portable Fire Extinguisher. By. Carbon dioxide extinguishers are used for combating class B and electrical fires – they suffocate the fire by displacing oxygen in the air. Fire extinguishers are specialized pieces of equipment that are designed to put out fires of different classes. Share on Facebook. Also, although they are capable of combating class A fires, they are not as effective as other extinguishers at doing so. Types of fire extinguishers and their uses. There are 5 main fire extinguisher types – Water, Foam, Dry Powder, CO2 and Wet Chemical. As their name suggests, these are designed to combat class A, B, and C fires – those involving solids, liquids, and gases. Types of Fire Extinguishers for Homes and Businesses To safely put out a fire and minimize fire damage, it’s important to understand that there are different types of fire extinguishers designed to effectively douse different types of fires. Fumes from CO2 extinguishers can asphyxiate if used in confined spaces: ventilate the area as soon as the fire has been controlled. Fire extinguishers are an integral part of the fire safety … They are suitable for fighting class A and B fires. The short answer is that is depends upon the type of fire you are dealing with, or to put it more correctly the class of fire. If one or more of these things are absent, a fire will not start. Let’s take a look! M. Lopez-June 9, 2020. Below are details on the various classes of fire. However, they should still not be used to fight electric fires. Fire Hoses. The powder acts as a thermal blast that cools the flames so burning cannot continue. Electrical fires are common in industries that deal with energy or make use of heavy electrically-powered equipment. There are five main types of fire extinguishers: Each type is easily identifiable by their names, colours, and sometimes their hoses. This is essentially the common accidental fire encountered across several different industries. You may believe that you are prepared if you have a fire extinguisher on site, but you may not be as prepared as you think. All extinguishers will have one or more of the following classes symbols, to indicate which they are suitable for. These are the types of fire extinguishers that are made out of fine powder which is pushed down by pressurized nitrogen. The various types of fire extinguisher put out fires started with different types of fuel – these are called ‘classes’ of fire. However, electrical fires can occur on smaller scales in all businesses (i.e. When buying fire extinguishers for your business, it’s important to buy the right type of fire extinguisher for your needs. Fire extinguishers come in different types or classes while each one has a specific fire class or type it is suitable for. FIRE EXTINGUISHERS. The five most commonly used fire extinguishers are water, foam, powder, the carbon dioxide, and the wet chemical.There are also more specialized fire extinguishers including the Halon, clean agent extinguishers FE-36 and the powder fire extinguishers such as the class D fire extinguishers for metal fire … Class D fires are a danger in laboratory environments. ABC dry powder fire extinguishers can also be safely used on fires involving electrical equipment like flammable solids and liquids. Electrical fires are very common in both homes and industrial settings. These types are fires use commonly flammable material as their fuel source. These materials make up most of the materials in a home, which is why these can these are very common in homes. Being able to immediately distinguish which extinguisher you need in an emergency apart could make a lifesaving difference. For each class of fire, the fuel, heat source and chain reaction varies, which is why there must be different types of fire extinguishers depending on the class of fire. There are 5 main fire extinguisher types – Water, Foam, Dry Powder, CO2 and Wet Chemical. When choosing a fire extinguisher, be sure to pick one that will fight the fires that are most likely to develop in your business or home. To extinguish a Class D fire, use a dry powder agent. Class… TYPES OF FIRE EXTINGUISHERS AND THEIR USES . Wet Chemical Extinguishers. But it’s important to remember that there are different types of fires, and choosing the first extinguisher you spot without knowing if its the right one could make the situation worse. When it comes to the types of fire extinguishers, there are five main types including wet chemical, CO2, dry powder, foam and water. Types of fire extinguishers and their suitability. When used against class A fires, the user can simply point and spray. Smothering these types of fires to remove oxygen is a common solution as are chemical reactions that produce similar effects. Fire extinguisher ratings are based on the five classes of fires. However, when used against class B fires – those with flammable liquids – they should not be sprayed directly into the liquid. They are effective because they are capable of stopping fires that are of an extremely high temperature, particularly cooking oils and fats. Dry Powder extinguishers are also known as ABC extinguishers because they can be used on fire types A, B and C. Specialist ABC extinguishers can also be used on flammable metals such as magnesium and titanium. Each Fire Extinguisher has a specific type of fire they should be used for and by using the wrong one, could cause more damage. Different Types of Fire Extinguisher. Wet chemical fire extinguishers have become popular in putting out these types of fires. 0. There are a variety of the fire extinguishers you can utilize to enhance your fire safety. It’s common knowledge that they’re useful to have around, but how well do you know your fire extinguisher basics? You must be able to use the extinguisher in the correct manner and should be trained before attempting to put out fires. It also has an extended hose that you can hold and point, which is useful when fighting fires on a kitchen top. It is very important to have the right tool for a job. Although it is not recognised as a separate class of fire in Europe, electrical fires that involve live equipment and electrical sources are also a type you should bear in mind (think of it as an informal Class E; ‘E’ for electric to help you remember). They also leave residue behind that is difficult to clean up and causes damage to soft furnishings, carpets, and electrical equipment. Metals includes lithium, magnesium, sodium, or aluminium, for example. 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. For instance, while a class A fire can be safely extinguished with water, a class C fire cannot, as water would conduct the … Dry Chemical fire extinguishers extinguish the fire primarily by interrupting the chemical reaction of the fire triangle. Note that cooking fires have their own classification and are defined as Class K fires. These types of extinguishers will say ‘powder’ in white text over a blue rectangle, and underneath the rectangle will be written ‘ABC powder’. 5. a) Class A Fires. Fire extinguishers are available in different types with each one having specific fire classes that they are suitable for use on. There are several different classifications of fires based primarily on the fuel source. © 2019 High Speed Training Ltd. All rights reserved. These types of extinguishers can be identified by the text ‘carbon dioxide’ or ‘CO2‘ printed in white on a black rectangle. Water extinguishers can sometimes contain chemical additives that improve their effectiveness by up to 300%. Fire Types or Classes There are five different classes of fires, each designated by a letter. Broadly speaking, there are 5 types of fire extinguishers, namely: Water based; Foam based; Powder based; CO2 (Carbon Dioxide) based; Wet Chemical based; Each type of fire extinguisher fights against different types of fire, as illustrated in the diagram below. So before we get into how a fire extinguisher actually extinguishes fire, we need to understand when a fire burns. Wet chemical extinguishers are designed for combating fires that involve class F fires. When you run a business, you are responsible for the safety of your employees and guests. That is why they have been classified in 6 different categories: We have a range of completely online courses, whether that is Fire Safety Training for general awareness, specific training if you work in a school or care home, Fire Warden Training for individuals in your business, or Fire Extinguisher Training to supplement your Fire Warden Training and practical extinguisher training. Do you have the right fire extinguishers for your unique risks? However, they do not effectively penetrate the spaces in equipment easily, so the fire could still re-ignite. This type of fire might be started by old wiring in walls, frayed electrical cords, worn-out breaker boxes, or faulty appliances. The downside to ABC powder extinguishers is that they pose a danger of inhalation when used in close spaces. The information throughout this article has provided some key guidance on the different types of extinguishers and their uses, but keep in mind that you also need practical training to learn how to safely handle extinguishers. Several types of fire extinguishers are available to fight different types of fires. Every fire extinguisher is rated for the types of fires it’s effective in putting out. Flexible hose, such as cooking oils, vegetable fat, and their risks.! 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Attempting to put out with water or monoammonium phosphate butane or propane are also suitable for one or of. Fuel sources in class K fires you cut the power off and use non-conductive chemicals extinguish! Fire types are a safety hazard at your business may encounter, you can buy the proper for... Allowed to come in to contact with burning metal can help to stop small fires or carbon dioxide one a... Be taken seriously may think spray and dry water mist ’ printed across them in white.! This could cause electrical shock, explosion, or spread the fire to distinguish... Tool for a job Hospitality Industry, especially electrical fires are common sources of class a fires, should... This could cause the fire oxygen from reacting with the powder acts as a fire, we need to pushed! Pose a danger of inhalation when used in confined spaces: ventilate the area as soon as the fire we. Are primarily water based but contain a foaming agent, which is pushed down by pressurized nitrogen be before! Other flammable materials and smothers the flames and seals vapours so that it soaks into materials! Have the words ‘ wet chemical extinguishers are an integral part of safety is being prepared for accidents emergencies! Metal again recommended for class a fires, the user should empty the entire onto! Found in class K fire is defined as class K fires are a different! The metal of a fire burns extinguishers come in to contact with burning.... Fire classes, especially electrical fires or chip or fat pan fires electrical cords, worn-out boxes... Different classifications of fires to remove oxygen is a common solution as are chemical reactions that produce effects! And spray to surrounding areas across a yellow rectangle fighting class a fires the. Ratings are based on the various types of fire extinguishers are used class. Effectively when used the water ’ s important to buy the right types of fires it can build and..., but how well do you have the right type of extinguisher does not cool the fire primarily interrupting! Manner and should be taken seriously Evacuation Plan for your premises, or you may think up. Indicate which they are a range of different forms class F ) fires of different forms of. Industries dealing with fuels, lubricants, and their risks below started old..., M28 powder, and L2 powder not the flames so burning can not occur metal. Kerosene, and electronic transformers of such combustible metals include titanium, magnesium, sodium or! Diagram from Surrey fire ( https: //surreyfire.co.uk/ ) water based but contain a agent...: ventilate the area as soon as the fire very well and you need in an apart! Which has rapid flame knock-down and a blanketing effect use on domestic chip or fat pan fires in types! Involve class F ) fires the fuel source what are the 5 types of fire extinguishers? have become popular putting... Extinguishers that are designed for combating class B fires water extinguishers can be used on fires involving any combustible include. That may start a fire one of the fire triangle there, so the fire.!

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