Get to know the various working systems of APAR (Light Fire Extinguisher)
The working system of APAR (Light Fire Extinguisher) is very important to understand, especially in a fire emergency situation. It is designed to extinguish small fires at an early stage before they grow larger, using a variety of effective fire extinguishing media.
Each type of extinguisher has a different working system, depending on the extinguishing media used. In this article, we will discuss how APAR works based on the type of media, such as foam, CO2, and powder.
What is a fire extinguisher?

APAR is a fire extinguisher designed for manual and portable use. It is a highly pressurized container of fire extinguishing agent, which allows its use by one person to tackle small fires.
The main function of fire extinguishers is to prevent fires from growing larger, as well as to protect the safety of life and property. APAR is often used in various places, such as homes, offices, and industrial areas, where the potential for small fires can occur.
In general, fire extinguishers work by spraying a fire extinguishing agent to break the fire reaction chain, remove oxygen, or cool the source of the fire. This process will depend on the type of extinguishing media used, which we will explain further below.
How APAR Works Based on the Extinguishing Media
Each type of fire extinguisher uses different extinguishing media. Each of these media has a specific way of working in extinguishing fires. The following is an explanation of the work system of each type of APAR based on the extinguishing media.
Foam extinguisher working system
Foam extinguishers use foam to extinguish fires. It works by forming an insulating layer over the surface of the burning material.
This foam layer will prevent oxygen from entering and breaking the combustion reaction. Foam extinguishers are very effective for class A fires (solid materials such as wood and paper) and class B fires (flammable liquid materials such as oil and gasoline).
Foam is usually produced from a mixture of chemicals dissolved in water. This process produces a large volume of foam and can cover the fire quickly. This system of action is perfect for fires involving flammable liquids and solid materials.
CO2 extinguisher working system
CO2 fire extinguishers use carbon dioxide (CO2) gas as a fire extinguishing medium. This extinguisher works by reducing oxygen levels around the fire, so that the fire becomes oxygen deprived and goes out. In addition, CO2 gas also serves to cool the fire area.
One of the advantages of CO2 extinguishers is that this gas leaves no residue, making it safe to use in class B (flammable liquid materials) and class C (live electrical equipment) fires.
Thus, CO2 extinguishers are very suitable for use in closed rooms or on electronic equipment, because they will not damage the electronic devices.
Powder Extinguisher Working System
The powder fire extinguisher system uses dry chemical powders that are effective for extinguishing various types of fires, including class A, B, and C.
This powder works by inhibiting the chemical reaction of combustion, so that the fire can be extinguished quickly. APAR powder is very versatile and can be used for fires in solid, liquid, and gas materials.
In addition, there is also a type of powder fire extinguisher that is specifically used for metal fires (class D). This type of powder uses a mixture of certain chemicals that can overcome fires in certain metals that cannot be extinguished with other media.
Sistem kerja APAR sangat bergantung pada media pemadam yang digunakan, apakah itu foam, CO2, atau powder.
Each has a way of working that is tailored to the type of fire that occurs. To ensure that the fire protection system in your place runs effectively, it is highly recommended to work with a professional contractor.
Adiwarna is the right choice as a fire protection contractor. With experience and expertise in the supply and installation of fire extinguishers to suit specific needs, Adiwarna ensures that your fire prevention system is ready for use at any time.
We can assist you in selecting, installing and maintaining fire extinguishers that meet your safety standards and site needs.