Flammable liquids, stored in warehouses, airport hangars, marinas, and manufacturing or processing facilities, create high risk, volatile environments. Foam is the agent of choice whenever there is a possibility of a flammable liquid fire. Foam, mixed with water, blankets the liquid that is on fire, eliminating the oxygen supply, cooling the fire, and finally extinguishing it. Protect your assets and the people who work in these high risk environments.
Manage the Challenge of Flammable Liquid Storage with Foam Sprinkler System Technology Solutions from Keystone
We Determine the Right Foam Sprinkler System for Your Facility
Every type of foam has its application. Keystone experts will recommend the type of foam—low, medium or high expansion—for the foam sprinkler system that your particular facility and application requires. For example, high-expansion foams are used when an enclosed space, such as a hangar, must be quickly filled. Low-expansion foams are used on burning spills. Whatever the need, we can guide you to the appropriate choice.
Some warehouses and facilities store flammable liquids. Fires that break out in these kinds of locations can be extremely difficult to extinguish using water alone. Luckily, foam sprinkler systems are quite effective at putting out fires on spilled flammable liquids. These fire sprinkler systems contain a specialized foam mixture that is released when a fire is present. As the foam covers the flames, it blocks its access to the oxygen needed to continue burning. In other words, the foam completely smothers the burning liquid, preventing further damage to property and people.
Foam sprinkler systems can be equipped with different kinds of foam: Aqueous Film-Forming Foam (AFFF) and Film-Forming FluoroProtein foam (FFFP).
AFFF: Aqueous Film-Forming Foam Knocks Down Fires Fast
How AFFF Works
This type of foam sprinkler system releases a blanket of foam, blocking the oxygen supply to the fuel. Liquid drains from the foam blanket and forms an aqueous film that suppresses fuel vapor and seals the fuel surface. The water content of the foam solution produces a cooling effect preventing re-ignition.
FFFP: Film-Forming FluoroProtein
Film Forming Fluoro Protein foam (FFFP) is formed by adding a combination of fluorochemical surfactants to protein foam. These additives are designed to combine the fuel tolerance and burn-back resistance of a fluoroprotein foam with an increased knockdown power of an AFFF foam.
How FFFP Works
FFFP foam releases an aqueous film on the surface of the hydrocarbon fuel — this film layer is what prevents volatile vapors from escaping the liquid. FFFP provides superior post-fire security because it produces a homogeneous, stable foam blanket that has excellent heat resistance, and drainage characteristics.