» The Underlying Logic of Foam Fire Extinguishing   ★. Why can't water extinguish oil fires? • Density difference: Water is heavier than oil and sinks directly to the bottom, never touching the flame.   • Boiling over: The water at the bottom vaporizes instantly upon contact with high temperatures, expanding thousands of times in volume, splattering the o...

Fire rescue truck needs vary drastically between metropolitan areas and rural or small-town communities. Large urban fire departments rely on heavy duty fire trucks with massive water tanks, high rise ladders, and full industrial-grade configurations to handle high rise fires, industrial blazes, and large-scale emergencies. However, for small cities, rural towns, village fire stations, and volunte...

Foam fire trucks combine a dedicated foam concentrate tank with a separate water tank and a precision proportioning system. They use a proportioning system to introduce foam concentrate into the water stream at a specified concentration, commonly 1%, 3%, or 6%, depending on the foam concentrate and firefighting application. The dual-tank design allows firefighters to use water alone when...