There are a large number of types and modifications of fire extinguishers designed to extinguish a wide variety of fires, the ignition sources of which can be combustible materials, chemical reactions, etc.
Powder fire extinguisher OP 4 is used to put out a fire in case of ignition of various combustible materials, liquids, as well as in case of fires associated with electricity, the voltage of which reaches 1000 V.
This type of fire extinguisher is the most common way to extinguish class A, B, C fires. It is also used to extinguish other fires due to its simple design and high reliability. But you can not use it to extinguish such materials that can burn without air. The fire extinguisher OP 4 consists of a cylinder painted red and containing powder inside, as well as a locking and starting device.
What are the benefits?
Due to the ease of use, this fire extinguisher is used both at home and in offices, industrial enterprises. The fire extinguisher OP 4 has a fairly compact size, which allows it to be convenientlyplace absolutely in all working and residential premises.
Also, its low cost will be an undoubted advantage. Simple production technology, elementary design and quick assembly allow mass production of such fire extinguishers, which favorably affects their price.
Key Features
Fire extinguisher OP 4 carries a charge of powder weighing 4 kg. This allows for 10 seconds to actively extinguish a fire area of 2.8 square meters. m. Due to the good working pressure of 1.6 MPa, the jet length can reach 3 meters.
A fully loaded fire extinguisher weighs 6.5 kg. The advantage is that in case of non-use it must be recharged once every 5 years. That is, there is no need to constantly worry about the technical condition of the extinguishing agent. But not everyone does it on time, which sometimes has rather sad consequences.
In addition, the powder fire extinguisher OP 4 can be stored and used in the temperature range from -45 to +50 degrees Celsius, which makes it a versatile tool for extinguishing small fires in almost any environment.
Differences from other modifications of powder fire extinguishers OP
Powder fire extinguishers can be found almost everywhere. At the same time, the fire extinguisher OP 4, the 3rd modification of which loses in terms of the duration of active extinguishing, has become the most popular tool for ensuring fire safety.
For example, if we take the overall dimensions, then it is more compact compared to OP 5 and OP 8. But,accordingly, it contains less quenching agent, although OP 4 is in no way inferior to OP 5 in terms of the duration of quenching.
This fire extinguisher is less than twice as heavy as OP 2, which weighs 3.5 kg. It is also almost two times lighter than OP 8, whose weight is 12.0-12.6 kg. Given its ability to extinguish fires, this mass is optimal for the use of OP 4 in any office.
How to use it?
In principle, there is nothing easier than learning how to use such a fire extinguisher. First you need to break the seal. After that, you need to remove the check, which protects the fire extinguisher from accidental operation. Then you should go to the source of fire, point the bell at it and press the lever.
Facilities should constantly check how fire safety officers and other workers know how to use fire extinguishers, which is very important, as many lives can depend on it.
Don't treat a fire extinguisher as an over-safety tool, because once you extinguish a small fire, you can prevent a big disaster.
