Types of fire extinguishers

The fire capsule is a cylindrical tank that is filled with special materials under pressure. Basically, when a fire incident occurs, people can control and extinguish the fire with a fire extinguisher. But since the cause of fire is usually It comes from different and different factors, dealing with different fires also requires different methods. Therefore, there are different types of fire extinguishers, each of which will be effective in extinguishing and suppressing certain fires.

Powder and gas capsule CO2 capsule Foam capsule Water and gas capsule

Powder capsules are the most common type of fire extinguishing capsules. Powder fire extinguishers are used to deal with types A, B, C, D, E fires. But at the same time, it is recommended not to use powder capsules in a closed space, because it may harm people's vision and respiratory system. In general, dry powder fire extinguishers work best to contain type D fires. In order to benefit from the optimal performance of these capsules, it is recommended to open the container once a month and put it back in its place. In this way, the materials inside the capsule are deposited. Powder extinguishers generally have a blue label. Although in some countries and manufacturers, powder capsules may have a different color label. Finally, add the point that powder extinguishers will not cool the flames.

One of the most commonly used fire extinguishers is the foam extinguisher. In these capsules, instead of spraying water or CO2 gas, foam spraying is used to extinguish the fire. The mechanism of foam capsules is such that these capsules act mechanically to extinguish fire and prevent the release of flammable gases by spraying foam on the fire. In these capsules, the foam covers the fire and prevents the fire from spreading. In fact, the complete coverage of the fire by foam prevents oxygen from reaching the fire. Foams are light in weight and therefore do not come off unless washed with water. Therefore, they will always give you enough time to extinguish the fire.

Water and gas fire extinguishing capsule may be the most widely used type of extinguisher. These types of capsules are the most used in the workplace and homes and are generally used to extinguish fires caused by wood and paper. Basically, water is the best and easiest extinguishing agent for type A fire. Water and gas fire extinguishers will be the best option to contain and control fires caused by solid materials. In fact, water is removed from these capsules with the help of nitrogen gas. Two-thirds of these capsules are filled with water, and inside the capsule chamber, it is pressurized with air. In some gas and water capsules, detergents may also be added to the water to produce foam. Water and gas capsules can be compared with powder and gas capsules. Because they have many similarities, but water and gas capsules are used instead of powder. The mechanism of water and gas capsules is that they extinguish the fire by cooling the surface to eliminate the heat element in the fire triangle.

Now, according to the characteristics of different fire extinguishers, the most suitable fire extinguisher for the hospital will be dry chemical and foam capsules. Because both of these models are multipurpose capsules and can extinguish all types of fire classes. The compatibility of the fire extinguisher with the environment and conditions of the hospital: in fact, it should be predicted in advance what kind of fire is likely to occur in that part of the hospital. Attention to some parameters of different hospital spaces, such as temperature, air flow, flammable materials and liquids Paying attention to the possibility of simple access and easy use of the fire extinguisher Choosing the type of capsule according to the possible intensity and spread of fire in different parts of the hospital Accuracy in the label on the fire extinguisher, which includes information related to the fire extinguisher

Residential and commercial buildings use firefighting equipment such as fire extinguishers in order to increase building safety. Now the necessity of having fire extinguishers in buildings is defined as a legal provision. But in order for the fire extinguisher in the buildings to contain the fire efficiently, it is necessary to pay attention to which type of extinguisher will be suitable for the possible fire of each building. But if this point is not paid attention to, the fire extinguisher of the building will be practically unusable and in addition, it is even possible to intensify the flames. For this reason, it is very important to fully understand the different types of fire extinguishers and then choose the right one for the building. The building's fire extinguisher generally has a cylinder that weighs from 1 to 12 kg. This is the maximum load that the building capsule cylinder can withstand. Therefore, one capsule will not be enough to contain the fire of the entire building.

Type A fire: fire caused by ordinary flammable materials such as wood, paper, etc. Type B fire: fire caused by flammable liquid substances such as oil, gasoline, etc., as well as gases such as butane Type C fire: fire caused by electronic and electrical components such as computers, servers, etc. Type D fire: fire caused by flammable metals such as: potassium, magnesium, titanium, etc. Type K fire: fire caused by flammable cooking oils and fats such as animal and vegetable oils