... clean-air,halon,Co2 Foam-agent Fire-extinguishing system Foam-agent fire extinguishing system consists of pressured water source, foam-stored ... industry, tanks zone, oilfield, offshore oil plateform in case of fire caused by flammable liquid or gas and chemical ... proportioner is an important part of foam agent fire extinguishing system. Electromotor, hydraoturbine or other source of power is ...