Dry Powder Fire Extinguisher

Powder Fire Extinguisher Suitable For Class A, B, C & Electrical FiresDry Powder Fire Extinguishers, commonly known as powder fire extinguishers or ABC powder fire extinguishers or are the most versatile extinguisher on the market. They are suitable for use on Class A, B and C fires such as paper, wood and textiles along with flammable liquids and gases. Dry powder extinguishers are also safe to use on electrical fires.

They can be recognised by their blue panel on the red extinguisher body. There are two types of dry powder extinguisher, with the most common been the ABC powder extinguisher and the other being the Monnex powder extinguisher.

ABC powder extinguishers have a strong fire fighting capability, but the user must ensure the fire is properly extinguished. The powder does not soak in to the burning and has not got a good cooling effect, which can cause the fire to reignite. Also as dry powder extinguishers contain ammonium phosphate, once mixed with water forms phosphoric acid that can damage equipment due to corrosion.

The Monnex specialist powder extinguisher has a superior fire fighting ability that can be used on Class B and C fires. Monnex breaks into tiny particles when it comes into contact with extreme temperatures which produces a wider coverage than the standard ABC powder extinguisher.

It’s extremely effective on burning metal as it has a special low velocity applicator which ensures the powder is applied effectively to prevent burning swarf (metal debris) from spreading. Best suited for high risk areas such as petrol stations, airports, stores that sell any flammable liquids, garages and race tracks.

The powder can cause damage to soft furnishings, fabrics and computer equipment so cleaning up after use can be problematic. With this in mind, the right balance has to be made between the highly effective powder extinguishers and the cleaner foam and additive water extinguishers.

They are ideal for use in factory and warehouse settings along with other environments that require a multi-purpose fire fighting application.

How It Works?

Dry Powder fire extinguishers combines and fuses ammonium phosphate and ammonium sulphate powder that forms a layer that starves and provides a knockdown to the fire.

The Features & Benefits

✓ Suitable for Class A,B,C and electrical fires

✓ Swift flame knockdown

✓ Does not conduct electricity

✓ Exceptional when used on running fuel fires

✓ No thermal shock

✓ Creates effective heat shield

✓ Can be used in temperatures between -20°C to +60°C

✓ The most effective fire fighting medium on the market

What’s Suitable?

Dry powder is suitable for fires involving flammable liquids, gas, oil, chemical, electrical equipment and solid materials like paper and wood.

They are not to be used in confined spaces or environments which can become contaminated such as laboratories or food preparation areas.

The Risks

Care should be taken to ensure the fire is fully extinguished and make sure the fire does not reignite due to its limited cooling effect.

When used on gas fires, the gas supply must be isolated before trying to extinguish the fire to avoid unwanted danger.

The dry powder can create a thick powder cloud that will severely reduce the visibility of the user. This can make it hard to assess the effectiveness of the powder on the fire and may make fire escapes hard to find.

If dry powder is inhaled, it can irritate the respiratory organs. Short term exposure is not considered to be harmful, but repeated inhalation could cause problems. Also it can cause irritation if it comes in to contact with skin and eyes. For these main reasons, dry powder extinguishers should be avoided in areas where the residue will come into contact with people.