What is the intended use of Type D fire extinguishers?

Type D fire extinguishers are specifically designed to combat fires involving flammable metals, such as magnesium, potassium, and sodium. These metals burn at extremely high temperatures and can react violently with water, which is why standard extinguishing agents used for other types of fires, like foams or water, may not be effective and can even exacerbate the situation.

Type D extinguishers typically contain dry powder agents that smother the fire, effectively cutting off oxygen and preventing the fire from spreading. Their unique formulation is crucial in dealing with metal fires that behave differently from those involving organic materials or common combustible substances. Understanding the specific fire hazards associated with different materials is essential for effective fire safety and response.