Firefighting foam is a foam used for fire suppression its role is to cool the fire and to coat the fuel preventing its contact with oxygen resulting in suppression of the combustion fire fighting foam was invented by the russian engineer and chemist aleksandr loran in 1902.
Fixed foam fire fighting system.
Fixed monitor system fms the conventional fire fighting system for helideck consists of.
The foam so generated creates a layer over the fire and cuts the oxygen supply the process called smothering to extinguish the fire.
Foam fixed fire extinguishing systems are very effective and popular fixed fire fighting system in marine field.
Below you can see a typical line diagram of fixed foam fire fighting system.
Other components of fire retardant foams are.
Dual agent unit dual agent units are manually operated units discharging dry chemical powder and water foam.
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Maintenance required on fixed foam system.
Foam gives smothering and cooling effect to the applied area.
The surfactants used must produce foam in concentration of less than 1.
Foam monitors which can be remote or self controlled foam skid unit.
Typical components include a water source a centrifugal pump foam concentrate tanks a direct injection foam proportioning system on the discharge side of the pump a mixing chamber or device a rotary air compressor and control.
A compressed air foam system cafs is used in firefighting to deliver fire retardant foam for the purpose of extinguishing a fire or protecting unburned areas.
To select the correct foam system it is necessary.
Fixed foam fire protection system.
When the foam solution reaches foam nozzle on deck the air is injected into the foam solution to create the fire fighting foam.