Generally, a Class A fire will leave a pile of ash – so look out for this before using a water fire extinguisher. Using a water-based extinguisher on the likes of a cooking fire can add to the fire by spreading the flammable cooking oils further. Therefore they need to be adequately safeguarded against with a water extinguisher.īefore using a water fire extinguisher on a fire, you need to make sure that it definitely is a Class A fire. Class A fires are the most common type of fire. Still, even if di-electrically tested, water fire extinguishers should only really be used on Class A fires.Ī Class A fire is any fire that is fueled by organic, solid materials, including paper, wood, textiles, and a few types of light plastics.Ī lot of the materials that cause class A fires are natural and contain some level of carbon. That means they could be used on electrical fires if there is no CO2 fire extinguisher available. It is possible to get a water fire extinguisher that has been di-electrically tested. Water fire extinguishers are only suitable for use on one type of fire: Class A fires. What Type Of Fire Is A Water Extinguisher Used For? Having the right equipment to combat the fire risks present in your premises is vital. This means they can extinguish fires caused by a flammable liquid. Some businesses opt for water fire extinguishers to fulfil this requirement, while others instead invest in foam fire extinguishers.įoam fire extinguishers are more versatile and can be used on both Class A as well as Class B fires. It is a requirement for every business premises to have at least two Class A fire extinguishers on each floor of their business property. Small, 3-litre water fire extinguishers are sometimes stored under car seats for vehicle fire protection. This includes any type of office, school, shop, or residential property. However, anywhere that features such solid materials as paper and wood should consider getting a water fire extinguisher. Water fire extinguishers are recommended for environments that store large amounts of combustible materials, such as paper mills, warehouses, and storage facilities. What is a Water Fire Extinguisher Used For? On top of this, water fire extinguishers are the most environmentally-friendly fire extinguisher available. Unlike foam fire extinguishers, water extinguishers don’t leave residual stains, which makes cleaning up easy. Water fire extinguishers are the most cost-effective and low-maintenance extinguisher type. This releases the gas that pressurises the water. This canister is punctured when the lever of the fire extinguisher is first squeezed. Inside a water fire extinguisher, you’ll also find a small canister containing high-pressure gas. Water fire extinguishers only contain water and come in either 3, 6, or 9-litre sizes. What do water fire extinguishers contain? The water often comes out with a mist effect, allowing the water to cover a wide area. This tube leads to the spout of the hose, and the compressed water sprays out with enough pressure to extinguish flames. In terms of how the mechanisms work, pressured gas compresses the water contained in the tank downward and then through a tube. Water is sprayed onto the fire, which extinguishes some of the flames, wets the fuel, and brings the overall temperature of the fire down significantly. Water fire extinguishers attack the ‘heat’ side of the fire triangle by using water to cool and eventually extinguish the flames.
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