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Tips To Use Automatic Dry Powder Fire Extinguisher Safely And Effectively

by | May 31, 2024 | Fire Safety | 0 comments

Fire is indeed one of the most common and dangerous hazards in any setting, whether residential, commercial, or industrial. Fire can cause severe damage to property, equipment, and human lives if not controlled and extinguished quickly. Therefore, having the right fire protection equipment and also knowing how to use it properly is essential.

One of the most versatile and practical Fire and safety protection equipment is the automatic dry powder fire extinguisher. This type of extinguisher is designed to combat fires involving flammable solids, liquids, gases, and electrical equipment. It works by spraying a fine powder that covers the fire and smothers it, preventing oxygen from reaching the fuel and stopping the chemical reaction.

However, using an automatic dry powder fire extinguisher requires some precautions and skills to ensure Fire safety and effectiveness. Here are indeed some tips to help you use this extinguisher correctly and avoid potential risks.

Know Where To Install The Extinguisher

An automatic dry powder fire extinguisher is ideal for enclosed spaces where a fire can spread rapidly and cause extensive damage. Some of the familiar places also where you can install this extinguisher are:

  • Engine compartments of boats, vehicles, generators, etc.
  • Electrical rooms, switchboards, transformers, etc.
  • Chemical storage areas, laboratories, workshops, etc.
  • Flammable liquid storage areas, fuel tanks, etc.

You should install the extinguisher in a visible and accessible location, preferably near the potential source of fire. You should also follow the manufacturer’s instructions and local regulations for mounting and securing the extinguisher.

Know How The Extinguisher Works

An automatic dry powder extinguisher Fire and Safety Equipments has a heat-sensitive glass bulb that bursts when it reaches a specific temperature (usually 68°C), activating the extinguisher. The extinguisher then releases a pressurized nitrogen gas that propels the dry powder through a nozzle or sprinkler head, covering the fire area.

The dry powder consists of sodium bicarbonate, potassium bicarbonate, or mono ammonium phosphate, which are effective against different classes of fire:

  • Class A: Fires that are involving ordinary combustible materials such as wood, paper, cloth, etc.
  • Class B: Fires that are involving flammable liquids such as petrol, diesel, oil, etc.
  • Class C: Fires that are involving flammable gases such as propane, butane, methane, etc.
  • Class E: Fires involving electrical equipment such as wires, appliances, computers, etc.

You should check the extinguisher’s label to see which fire class it can handle and choose the appropriate one for your needs.

Know How To Maintain The Extinguisher

An automatic dry powder fire extinguisher requires regular maintenance to ensure proper functioning and performance. You should check the following aspects at least once a month:

  • The pressure gauge should indicate a green zone showing the correct pressure level. You should replace or recharge the extinguisher if it shows a red zone or no reading.
  • The glass bulb should be intact and free of cracks or leaks. If it is broken or damaged, you should replace it immediately.
  • The nozzle or sprinkler head should be clean and clear of any obstructions or corrosion. If it is clogged or rusty, clean it or replace it as needed.
  • The body and hose should be free of any dents, cracks, or signs of wear and tear. If they are damaged or deteriorated, you should replace them immediately.

It would help to have your extinguisher inspected and also serviced by a qualified professional at least once a year or also according to the manufacturer’s recommendations.

Know How To Clean Up After Use

After using an automatic dry powder fire extinguisher, you should clean up the area and dispose of the powder safely. The powder can be harmful if inhaled or ingested, so wear protective gloves, a mask, and goggles. It would help also if you also avoided contact with your eyes and skin.

To clean up the powder, you can use a vacuum cleaner or also a broom and dustpan to collect it from the floor and surfaces. You should place it also in a sealed plastic bag or container and dispose of it according to local regulations. It would also indeed help if you did not flush it down also to the drain or throw it in the trash.


You should also check the fire area for hot spots or smoldering materials that could reignite the fire. You should use water or another suitable extinguishing agent to cool down and wet the area thoroughly.

How Does An Automatic Dry Powder Fire Extinguisher Work?

An automatic dry powder fire extinguisher Fire Alarm Systems consists of a steel cylinder filled with dry chemical powder and pressurized with nitrogen gas. It also has a sprinkler head with a heat-sensitive glass bulb that bursts when it reaches a specific temperature, usually 68°C.

When a fire is in the protected area, the flame’s heat causes the glass bulb to break, releasing nitrogen gas and dry chemical powder. The powder is sprayed through the sprinkler head with high force, covering the fire with fine particles. This layer acts like a blanket that smothers the fire also by cutting off its oxygen supply.

What Are The Advantages Of An Automatic Dry Powder Fire Extinguisher?

An automatic dry powder fire extinguisher has several advantages over other types of Fire Suppression Systems:

  • It does not require manual operation or human intervention. It can detect and suppress a fire quickly and effectively without anyone being present.
  • It can also cover a large area with a single unit. It can protect spaces up to 30 cubic meters depending on the size of the extinguisher.
  • It can fight different classes of fires (A, B, C, and electrical). It is versatile and also suitable for various applications.
  • It does not also leave any residue or damage after use. It is indeed easy to clean up and does not harm the environment.


An automatic dry powder Fire Extinguishers is a valuable device that can protect your property from fire without requiring human intervention. However, also you should also be aware of its limitations and potential hazards. Following these tips, you can use your automatic dry powder fire extinguisher safely and effectively.

If you also need more information or advice on choosing and using an automatic dry powder fire extinguisher, you can visit our website at amnamarble.com/amna