CommanderEDGE | 5kg CO2 Fire Extinguisher

FAQs

What types of fires can the CommanderEDGE FX-CO2-005-DCF extinguish?

This CO2 fire extinguisher is designed for Class B fires involving flammable liquids such as petrol, diesel, oils, solvents, paints and other petroleum-based products, as well as electrical fires involving live electrical equipment, wiring, appliances and machinery. The carbon dioxide gas displaces oxygen around the fire whilst the extremely cold discharge (approximately -78°C) cools the burning material. It should not be used on Class A fires (solid combustibles like wood and paper), Class F fires (cooking oils and fats in deep fat fryers), or in confined spaces where oxygen displacement could present an asphyxiation risk.

What does the 70B fire rating mean?

The 70B rating indicates this extinguisher’s effectiveness on Class B flammable liquid fires, specifically that it can tackle fires covering 70 square decimetres in standardised testing conditions. This represents one of the highest fire ratings available for CO2 extinguishers in the UK, demonstrating exceptional performance for its 5kg capacity and making it suitable for larger liquid fire risks in commercial and industrial environments.

Why is CO2 ideal for electrical fires and sensitive equipment?

Carbon dioxide is a non-conductive, clean agent that leaves absolutely no residue after discharge. This makes it perfect for protecting expensive electrical equipment, computers, servers and machinery because it won’t cause water damage, leave corrosive powder deposits, or create the need for extensive cleanup. The gas simply dissipates into the atmosphere after extinguishing the fire, meaning protected equipment can often be returned to service immediately without damage or contamination from the extinguishing agent itself.

What are the safety considerations when using CO2 extinguishers?

CO2 extinguishers discharge extremely cold gas (approximately -78°C) which can cause cold burns or frostbite if skin comes into contact with the discharge or horn. This is why the FX-CO2-005-DCF is supplied with a frost-free safe horn designed to prevent this risk. Always hold the extinguisher by the handle and horn assembly, never by bare metal parts during discharge. Additionally, CO2 displaces oxygen, so avoid prolonged use in small, poorly ventilated spaces as this could present an asphyxiation risk. Ensure adequate ventilation when using CO2 extinguishers indoors.

Why is alloy steel construction important?

The alloy steel cylinder construction provides the perfect combination of exceptional strength to withstand the high internal pressure (56 bar at 20°C) whilst maintaining a pleasing aesthetic appearance. This robust construction makes the CommanderEDGE product probably the most durable CO2 fire extinguisher available in the UK, able to withstand harsh environments, knocks and general wear whilst maintaining structural integrity. The corrosion-resistant finish further enhances longevity, making it ideal for demanding industrial and workshop applications.

What is the operating temperature range?

This extinguisher operates effectively across an exceptional temperature range of -20°C to +60°C, significantly wider than many other extinguisher types which typically operate from +5°C upwards. This makes the FX-CO2-005-DCF particularly suitable for cold storage facilities, outdoor installations, and environments subject to temperature extremes, whilst the alloy steel construction and corrosion-resistant finish ensure reliable operation even in challenging conditions.