A fire extinguisher is an element that is used to fight the fire. Also called extinguisher, this device is used to extinguish flames.
The fire extinguishers have a tube or one bottle made of steel that stores a substance inside fire extinguisher, which is preserved at Pressure. When the valve, the substance is expelled through a hose or nozzle.
It is therefore necessary to direct the hose or nozzle of the extinguisher towards the fire to put it out.
In addition to all that is indicated, we cannot ignore that the fire extinguisher or extinguisher was created by the English publicist and inventor William George Manby (1775 – 1854). It occurred to him to shape this device when he attended a fire and saw that firefighters were unable to put out the fire on the highest floors of a building in Edinburgh.
This invention was patented in 1839 and, at first, it consisted of four cylinders: one that contained compressed air and the other three that carried water inside. However, in the following century, specifically in 1905, that of water began to be replaced by sodium bicarbonate.
So that it can fulfill its function, the fire extinguisher is a portable object, what a person adult can transport by herself without great difficulties.
There are, however, multiple types of fire extinguishers. The smallest ones contain one kilogram of extinguishing agent and are usually carried in the automobiles. Thus, in case of any damage or accident that generates flames, the driver has at his disposal a fire extinguisher.
There are larger fire extinguishers that are installed in common spaces of buildings. In these cases, the idea is that any individual can resort to the fire extinguisher if necessary. In addition, there are heavier fire extinguishers that must be transported in small carts with wheels.
Beyond the different sizes, fire extinguishers also differ in their extinguishing agent. They can expel Water, dry ice, a chemical powder or one foam, for instance.
According to their extinguishing agent, fire extinguishers act by suffocation, cooling, What inhibitors or through the elimination of the fuel. According to where they will be installed, it is convenient to choose one or the other model.
One or the other fire extinguisher will be used depending on the type of fire that has been produced. And it is that this can be of four different classes:
-The class A, which has fuels such as wood, cardboard or plastic.
-The class B, which is caused by paint, gasoline or oil.
-Class C, which is produced by butane, city gas or propane.
-The class D, which is caused by a metal such as, for example, powdered aluminum.
Taking these types of fires into account, it is often referred to as halon fire extinguishers, universal powder extinguishers, hydric fire extinguishers, dry chemical powder fire extinguishers, specific metal fire extinguishers, instant fire extinguishers …