by Tom Resser | Aug 25, 2026 | Foam and Water
Water Curtain Fire Protection for Tank Farms and Process Areas A water curtain is a line of spray nozzles that throws a continuous sheet of water droplets between a fire and whatever the fire would otherwise damage. It does not put the fire out. Its job is to absorb...
by Tom Resser | Aug 25, 2026 | Foam and Water
What Is Fire Fighting Foam and How Does It Work? Fire fighting foam is a mass of small air-filled bubbles made from water, a foam concentrate and air, which is lighter than any flammable liquid and so floats on top of it. Sprayed onto a burning pool of gasoline,...
by Tom Resser | Aug 25, 2026 | Foam and Water
High Expansion Foam: Where It Fits in Industrial Fire Protection High expansion foam is foam with an expansion ratio above 200:1, meaning one gallon of solution becomes more than 200 gallons of bubbles. In practice, many generators operate between 500:1 and 1,000:1....
by Tom Resser | Aug 25, 2026 | Foam and Water
Types of Fire Fighting Foam: AFFF, AR-AFFF, Fluorine-Free, Class A and Class B Fire fighting foam is selected mainly by the fuel it must protect and whether the concentrate contains fluorinated surfactants. Class B foams are designed for flammable liquids, while Class...
by Tom Resser | Aug 25, 2026 | Foam and Water
Compressed Air Foam Systems (CAFS): How They Work & Dry Chemical Comparison A compressed air foam system (CAFS) injects air into foam solution under pressure before it reaches the hose, producing a dense foam that travels farther, sticks to vertical surfaces and...
by Tom Resser | Aug 25, 2026 | Foam and Water
Dry Chemical vs Foam vs Water Spray: Open-Air Process Hazards For an open-air process hazard the rule of thumb is short. Foam for a pool of burning liquid. Dry chemical for a three-dimensional spill, a spraying leak, a pressurized gas fire or anything with live...
