How should water-based fire extinguishers be checked before use?

Water-based fire extinguishers are divided into water mist extinguishers and foam extinguishers. Water-based extinguishers contain extinguishing agents mainly composed of hydrocarbon surfactants, fluorocarbon surfactants, flame retardants, and additives. The spray form is water mist, which can quickly evaporate heat and reduce the temperature of the fire. The conditions for combustion are combustible material, temperature, and oxygen, all of which are indispensable.

The surfactant sprayed by the fire extinguisher will quickly form a water film on the surface of combustible materials, thus isolating oxygen, and at the same time, it participates in the fire extinguishing process, thus achieving the purpose of rapid-fire extinguishing. A water-based water mist extinguisher is a physical fire extinguisher, with environmental protection, fast fire extinguishing speed, strong penetration, anti-combustion characteristics, it has better fire retardant than other fire extinguishers. Water-based extinguishers are not affected by the environment and can be used indoors and outdoors as well as under strong wind conditions.

How to use water-based fire extinguishers?

Water-based fire extinguishers are corrosion-resistant, durable, environmentally friendly, fast fire extinguishing, flame retardant, resistant to re-combustion, strong penetration, high fire extinguishing depth, no indoor and outdoor, strong wind, and other factors, water-based fire extinguishers are divided into water-based water mist extinguishers, net water extinguishers, and water-based foam extinguishers. Below, follow the small view of the correct use of water-based fire extinguishers.

Step 1: Bring the fire extinguisher to the scene, about 6-10M away from the burning material, and then pull out the safety pin.

Step 2: Hold the open compression handle with one hand and hold the gun with the other hand. When opening the hold-down handle, press down and hold. Foam will spray from the gun after the extinguisher is sealed.

Step 3: After spraying foam, aim the gun at the part of the fire that is active and keep the extinguisher perpendicular to the ground, not lying down or upside down.

The above is the use of water-based fire extinguishers, all fire extinguishers use the same method, however, the composition of different types of fire extinguishers are different. When using, the nature of fire extinguishing and the method of using the extinguisher should be distinguished to avoid unpredictable and dangerous problems.

Fire extinguisher precautions

  1. first check whether the appearance of the fire extinguisher pressure gauge is damaged or deformed, and replace it if it is damaged.
  2. check whether the pointer of the fire extinguisher pressure gauge points to the green area, pointing to the green area means that the air pressure is normal.
  3. whether the nozzle of the fire extinguisher is deformed, broken, damaged, and other defects, or should be replaced.
  4. whether the spray hose is smooth, deformed, or damaged, or should be replaced.
  5. check whether the handle and valve body and other metal parts are deformed, damaged, and corroded.
  6. insurance pins and seals are intact, whether they have been opened and sprayed.
  7. fire extinguisher cylinder deformation is serious, the cylinder corrosion is serious (large area of paint off, rust area greater than or equal to one-third of the total area) cylinder body, or in the connection part and the bottom of the cylinder rust fire extinguishers need to be scrapped.
  8. The rubber and plastic parts of the fire extinguisher shall not be deformed, faded, aged, or broken, otherwise, it needs to be replaced.