Fire is a terrible incident that results in the loss of property, and sometimes life. Naturally, any source of ignition should be eliminated. An OU-3 fire extinguisher may be suitable for this.
The principle of operation of the device and its technical characteristics
This device works very simply. The OU-3 fire extinguisher operates by displacing carbon dioxide from the cylinder, which is under pressure in it. After the shutter trigger mechanism works, carbon dioxide moves through the siphon tube to the socket. If it is in a liquefied state at rest, then at the moment of action it turns into a gas.
A feature of this fire extinguisher is the instantaneous cooling of the combustion zone. In addition, the gas-air environment that blazes is quickly diluted with inert CO2. As a result, the combustion stops.
The OU-3 fire extinguisher has the following characteristics:
- Jet length – 2.1 m.
- Flask capacity - 4, 3 l.
- Charges out in 8 seconds.
- The mass of the device, ready for use, is 12.5 kg.
-Use temperature - from - 40 to +50 degrees.
- The service life, which is guaranteed by the manufacturer, is 1 year from the date of issue.
Scope of application
The OU-3 fire extinguisher is effective for extinguishing fires where water-based devices cannot be used.
It applies in the following cases:
1. In museums and galleries where valuable exhibits are stored that can be damaged by water.
2. For extinguishing electrical installations, the voltage of which does not exceed 1000 V.
3. To eliminate fire in trolleybuses, trams, trains.
4. For extinguishing gaseous, liquid and solid combustible substances.
This fire extinguisher can be used both indoors and outdoors.
Advantages, disadvantages and precautions
Note that such a device has certain advantages:
- Leaves no residue after stewing.
- Makes it possible to save valuable items that are damaged by water.
The only drawback of the device in question is that it cannot be used to extinguish those substances that burn even without air. Here, carbon dioxide will simply be useless.
As for the safety of use, the carbon dioxide fire extinguisher "OU-3" has some operational requirements:
1. If it is necessary to extinguish an electrical installation that is energized, then you should not approach it closer than one meter.
2. Do not recharge orrepair the device yourself. There are special service centers for this.
3. It is not recommended to use the device if there is no seal on it.
4. During the release of CO2, do not point the bell at people, as the gas temperature is -60 degrees.
5. Do not leave the device in direct sunlight.
6. At least twice a year, check the operation of the device.
Instructions for use
The OU-3 fire extinguisher, the characteristics of which are discussed above, must be used strictly according to the prescription:
1. Bring the fire extinguisher close to the source of the fire, keeping the minimum distance in mind.
2. Point the bell in the direction where the fire is, pull the pin and press the handle that activates the valve of the locking device.
3. If the fire did not occur indoors, then try to direct the bell so that the carbon dioxide does not come out against the wind.
4. After the extinguishing is completed, the device should be taken for refueling.
Please note that a fire extinguisher can accumulate heat stress and static electricity. Try to extinguish the fire so that carbon dioxide does not fall on you, as it has a toxic effect.
That's all the features of the application of the presented device. Good luck!
