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Knowledgement of Fire Extinguisher

  • How Fire Extinguisher Works?

    At the top of the cylinder, there is a smaller cylindrical container filled with compressed gas. A release valve acts as a locking mechanism and prevents this gas from escaping. When you pull the safety pin and squeeze the lever, the lever pushes on an actuating rod that presses the valve down to open a passage to the nozzle. The compressed gas is released, applying a downward pressure on the fire-extinguishing material, and pushing it out the nozzle under tremendous force. Although the temptation is to aim the extinguishing material at the flames, the proper way is to aim it directly at the fuel.

  • Water Extinguisher?

    Water extinguishers are filled with regular tap water and typically pressurized with air. The most common way to remove heat is to spray water on the fire; however, depending on the type of fire, this approach is not always the best option.

  • Dry Chemical Extinguishers

    CO2 extinguishers contain carbon dioxide, a non-flammable gas. They are so highly pressurized that it is not uncommon for bits of dry ice to shoot out. Since CO2 is heavier than oxygen and very cold, it displaces or removes oxygen from the surrounding area and cools the fuel. Do not forget that fire extinguishers require care and maintenance in order to remain functional!

  • Carbon Dioxide (CO2) Extinguishers

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