A fire can break out anywhere, at any time, so it's crucial to be prepared with the proper agent. The dry chemical fire extinguisher is filled with dry chemical powder, also called mono ammonium phosphate extinguishing agent.
Dry chemical powder can be used on fires of class A, B & C, on materials like wood, paper, fabric, waste, flammable liquids, and electrical equipment. However, fire involving the respective materials requires a unique application of the dry powder chemical.
The multipurpose fire extinguisher ABC dry chemical falls on the surface of combustibles, a chemical reaction occurs, and a glass-like covering layer is formed under the action of high temperature, thereby isolating oxygen and suffocating to extinguish the fire. In addition, there is a partial dilution of oxygen and cooling.
Class A fires are chemically contained; Class B fires are smothered, and the chain reaction is broken; and Class C fires are not conducted through the operator. You can identify an extinguisher containing dry chemical powder by a white band wrapping near its upper section. The use of dry chemical powder has various applications in the field of fire prevention.
Combined with foam sprays, its extinguishing properties make it appropriate for burning fuels in motion. When a lot of powder goes off at once, it might act as a blanket to protect nearby buildings and people from the flames. We recommend using it between -20 and +60 degrees Celsius.
The dry chemical powder can effectively block radiant heat when released and is effective for fighting fires in vehicles (undercarriage assemblies) since it does not produce thermal shock when applied to hot metal. However, you should avoid using dry chemical powder on grease or oil fires in the kitchen because it could make things worse.
Also, the dry chemical powder is unsuitable for fires involving chlorine and oxidizers. Explosions or the release of poisonous gases from the breakdown of these compounds are possible outcomes from the subsequent chemical reaction. Instead, use water. Fires involving certain metals (Class-D) and those involving cooking oils (Class-K) cannot be put out using dry chemical powder. The dry chemical powder is corrosive and should not be used in applications near airplanes or other delicate machinery.
Training in the safe handling of chemical powder in dry form is essential, while the most efficient way to use dry powder in the event of a fire is to discharge it at the base of a flame. However, always follow the powder manufacturer's guidelines to avoid accidents. Make sure to refill the dry chemical powder after each use, or if the pressure gauge registers a lower value, get in touch with an expert to help you recharge the right amount of dry chemical powder and check the pressure.
It is crucial to note that different agents are effective on different types of fire, making it difficult to determine which one to use. Always consult an expert to get the best that suits your fire safety needs. Fire extinguisher powder from Marco Fire Supply includes class A, B, C, and D fire extinguisher agents and can be purchased in various packs. Our dry chemical powder is approved for use by regionally accredited testing laboratories. Reach out to us for a prompt quote!
