• Low Expansion Foam: Low Expansion foam offers a 5:1 expansion rate, making it a foam system of choice to protect large and hazardous facilities, including; petrochemical tank farms, loading docks, processing areas, and refineries and liquefied natural gas storage. Organizations storing or handling flammable and combustible liquids will usually need to comply by having such a system.
• High Expansion Foam: With an expansion rate of 500:1, High Expansion Foam Fire Suppression Systems are more suitable to protect less common three-dimensional hazardous facilities including; warehouses, conveyors, aircraft hangars, and tunnels. As such, High Expansion foam is measured by volume output rather than application rate, as is typical of low expansion foams.

Discharge Devices: With both low and high expansion Foam Fire Suppression Systems, once a facility has been evaluated either an “Aspirating” or “Non-Aspirating” discharge device will be recommended, based on the facilities requirements.

• Aspirating discharge devices produce a more viscous foam & are great for reducing burn back and keeping the foam contained.
• Non-aspirating devices may be used with certain low-expansion foam agents which do not rely on a thick blanket of foam to achieve extinguishment.

So if you are seeking a foam fire suppression system design give us a ring. If you do not see what you are looking for please call 800-918-8978 and our specialist will point you in the right direction.