Portable fire extinguishers are designed to be easy to use for small fires and controls.
To use these capsules, note should be taken of glue on them, because on this there is information about the capsules used
on the adhesives.
Each capsule is designed to shut off a particular type of fire and may use it incorrectly ,Causing fire to fire and irreparable damage.
The installation site and the availability of these capsules is another important point to be considered.
It should be noted that these capsules are installed in accessible and accessible locations, with accurate physical checks,
and made available to people who are familiar with their use.
Standard (National Fire Protection Association) ) An engineer or fire inspector is not required for monthly or annual
monitoring of portable fire extinguishers, but maintenance, maintenance and repairs must be carried out by the owner,
residents or specific agents.
It is best to repair and maintain these capsules by fire department representative or trained safety personnel.
1. Drag the toggle bars.
2. Hose the capsule to the fire.
3. Press the knob.
4. Hose the capsule to the center of the fire
How to choose a suitable fire extinguisher?
1. To select a suitable capsule, one should pay attention to several points:
2. Occurrence of fire in the environment.
3. Fire intensity and fire speed.
4. The proportion of capsules for existing conditions.
5. Easy to use.
6. Availability of people familiar with the work of the capsule.
7. Environmental conditions including temperature, wind, air flow, dangerous vapors and .......
8. Health and safety issues.
9. The need to maintain and protect the capsule.
Classification of fire extinguisher capsules
Portable fire extinguishers include four types of A, B, C, D.
Type A fires are caused by ordinary combustion products such as leaves, shavings, wood and cloth.
These types of fires should be switched off by using water or water-based fire extinguishing agents or covering flammable materials with
a multifunctional dry chemical.Extinguishers such as pressurized water tanks, multifunctional dry chemicals, AFFF or FFFP and Halon
are very suitable for shutting off type A fire.If a fire is caused by flammable liquids such as oil, gasoline, grease or paint, a fire is of type B.
The type B fire must be turned off by the method ("choke"). As a result, fire extinguishers should be used to create a fireproof coating
that turns off the fire.
Substances such as conventional or multi-purpose dry chemicals, carbon dioxide, halon, AFFF orfluoroprotein-forming material (FFFP)
are used to turn off these flames.The fires that occur in electrical equipment are of type C. These types of fires must be shut off by a non-combustible
extinguishing agent to avoid electricity.
Before doing anything, it should cut off the power supply faster. Substances such as dry chemical substances, carbon dioxide and halon
are suitable for extinguishing these types of flames.Type D fires occur by flammable metals such as particles and metal scraps such as magnesium,
potassium alloys, and .......... These types of fire should be prevented by choking the fire by dry powder compounds designed in capsules for these
types of fires.
Note: Halon production is prohibited today, but recovered halon can be used to charge and service fire extinguishers.
There are, of course, harmless chemicals that can be used for new capsules, but none of them can
The use and absence of a capsule from a fire extinguisher is determined by the label on the capsule. Visual symbols are easy to understand and
understandable by everyone. Certain signs can also be used in these cases.
Types of fire extinguishers
Pressurized Water Capsules:
These capsules drain water by pressure and can be used when the combustible material needs to be cold and wet.
Capsules containing dry matter under pressure:
Dry-pressurized materials disrupt the fire process and, by covering the surface of the material, disrupt the fire-extinguisher, and by covering
the surface of the fire-fighting material, it prevents the oxygen from reaching it.
This type of capsule is one of the most widely used fire extinguisher capsules.
AFFF under pressure.
These capsules can shut off the fire by a thick foam solution. These AFFF layers cover the surface of flammable liquids and prevent the oxygen
from reaching the fire.
Halon 1211 capsules containing halogenated materials:
Halogenated extinguishers, through chemical processes, interfere with fire and do not leave any trace.
This extinguisher is traditionally used to turn off the fire in electrical equipment. kian Industrial Safety
Determine the size, method, and location of fire extinguisher installation:
The American National Fire Protection Association sets the minimum number of capsules required in a location based on the type of fire that
Type A: Accommodation Size: Low, Medium, High / Minimum Capsules 2AY / 2-AY4-A Maximum area per capsule 3000 / sq ft 1500 1000:
Maximum area for each capsule 11,250 11,250 / sq ft 11,250: Maximum displacement distance per capsule: 15 ft 75 75 To meet the needs of
a 4-A capsule, you can use a bottle-shaped blue capsule. Qian Industrial Safety
Type c: As mentioned earlier, Type C capsules are used when fires occur in electrical equipment and a non-conductive material
should be used.
Since the fire itself must be classified in a or b types, the capsules themselves must also be measured according to standards a and b.
Type D: Fire extinguisher capsules or extinguishing agents used for this purpose should not be more than 75 ft. Qian Industrial Safety.
Test and monitor capsules:
Fire extinguishers must be inspected every 30 days during and after installation. To inspect, you should pay attention to the following points:
Sufficient availability and visibility:
The existence of commands on the plaque containing the name of the capsule is legible and plain to the outside.
The safety wax and all relevant markers are healthy and intact. The capsule's fullness is determined by the weight of the capsule.
The absence of physical damage, such as corrosion, leakage or nozzle pressure, and pressure indicator, should indicate the applicable
Careful examination of wheels for tires and wheels (for humus and nozzle hinged capsules on the humus hazard identification system adhesive
should be installed in place.If after the review, there are some deficiencies regarding the location of the access problems related to
the capsule's labels. . .
It was observed that as soon as possible to correct the defects be used for current capsules.
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