Viking foam systems

Viking foam systems

ideally suited for protecting special hazard risks

Foam suppression systems are designed to limit fire damage in many challenging and high risk applications.

A foam-water system is a special system of pipe connected to a source of foam concentrate and a water supply. The system also requires appropriate discharge devices to control and/or extinguish most Class A and Class B fires. The piping system is connected to the water supply through a control valve (wet, dry, deluge, preaction, flow control) that is actuated by the operation of automatic detection equipment that is installed in the same areas as the discharge devices.

Foam-water systems are designed to distribute a foam-water solution to a specific hazard area within a protected facility. Typical facilities are incineration plants, logistics centres, aircraft hangars and areas where flammable-liquid spill fires may occur, such as refineries. The type and potential size of the hazard determines the number of discharge devices, type of foam concentrate, and foam-water discharge rate and duration.

A typical foam system consists of the following components that are tested, approved and/or listed together:

• Foam bladder tank

• Proportioning device

• Foam concentrate

• Discharge device – compatible, tested and approved with specific foam concentrates in accordance with FM5130 and/or UL162

Characteristics of some flammable products may require higher densities and special foam liquid concentrates. NFPA 11 and EN13565-2 contain requirements for foam-water systems, with requirements for foam systems also found in NFPA 13, NFPA 16, NFPA 30, NFPA 409, and NFPA 418.