The foam system consists of storage tanks (bladder tanks) with built-in measuring devices that contain the foam concentrate and are connected to a ready-to-use discharge system in the event of a fire.
The foam quickly concentrates to extinguish the fire, creating a thin film of water. For maximum effectiveness, the correct amount of foam concentrate should be mixed with water.
The primary extinguishing agent in a foam fire suppression system is water-film-forming foam (AFFF). It requires some energy to make high-quality firefighting foam. Typically, 1% and 3% foam concentrates are used in hydrocarbon fires.
If the foaming tank contains 3% foaming agent, that is, for 100 gallons of foam solution, 3 gallons of foaming agent should be used with 97 gallons of water in the solution.
Dosing devices release the appropriate amount of concentrate into the water supply based on the solution required and based on a range of flow rates and pressures.
Foam solutions are applied to flammable fires by vacuum or vacuum equipment. The aspirator contains air and mixes with the foam solution inside the unit. Furthermore, equipment without an air intake cannot do so.
Foam dispensers vary depending on application characteristics and requirements, and may include foam compatible sprinklers, foam monitors, foam manufacturers, foam chambers, and foam generators. , hand-held nozzles, etc.
The foam suppression system works on the overflow system to quickly introduce water into the system. The overflow valve is the water control valve of the whole hydraulic or electric quick discharge system.
The foam discharge system can automatically discharge the foam and aqueous solution through the discharge device through the precise cross-area detection system. Therefore, there is no chance of triggering false and incorrect alarms in the system.
