Foam Equipment

Bladder Tanks are one component in a balance pressure foam proportioning system. It requires no external power other than water pressure to ensure correct operation. Both vertical and horizontal bladder tanks are designed and constructed in accordance with the latest revisions to ASME code.

Proportioning is the introduction of foam concentrate into a flowing water stream to produce a foam solution. These systems provide a dependable and cost-effective foam fire protection for a variety of flammable /combustible hazard areas and because water is the primary operating medium, they are easy to operate and maintain.

Balanced Pressure Proportioning System when coupled with FIRECHEM Aqueous Film Forming Foam (AFFF ) or Alcohol Type Concentrate (ATC ) is a system specifically designed for the protection of flammable liquid hazard.

FIRECHEM Foam Chamber is designed to introduce expanded foam directly onto the surface of a flammable or combustible liquid for fire extinguishment and /or vapour suppression. It increases the effectiveness of the foam blanket, resulting in more efficient operation and greater extinguishing capabilities.

Classified as Type ll discharge device in accordance with NFPA Standard 11, foam chambers deliver low expansion foam directly onto the fuel surface with a minimum foam submergence and fuel agitation. Foam chambers have the added advantage of directing all their flow directly onto the surface regardless of weather conditions. Foam chambers have a long history of timely and safe control of numerous incidents.

Foam Generators (FCH *-250 are designed to expand foam solution into millions of tiny bubbles in which the foam solution is expanded in volume to a range of 200:1 to 450:1 approximately depending on the generator selected, solution flow rate, foam concentrate and the operating pressure.

The extinguishing mechanisms of FIRECHEM  HiEx Foam Generator (FCH* -250) involve a combination of the following:

• Free air movement necessary for continued combustion is reduced.
• Water content of the foam being converted to steam dilutes the oxygen concentration to a level below that necessary to support combustion.
• Cooling to a temperature below the combustion point or auto- ignition temperature of Class A or Class B fuels occurs as water is converted to steam.
• Reduced surface tension of the foam solution draining from expanded foam penetrates into Class A materials extinguishing deep seated fires.
• Insulating and heat reflective properties of the foam blanket provide a heat shield preventing fire spread extinguishing deep seated fires.

Handline nozzles provide a wide range of flexible flow control options. Ideal for use with AR-AFFF, AFFF and Class A foam concentrates, our handline nozzles achieve superior foam expansion for quick knockdown and extinguishment.