(A) Product description ??? PC depot special foam generator is the primary means for injecting low expansion foam fire extinguishing systems on liquid. Low expansion foam generator is a mixture of air mixed with the inhalation of the proportioning device produced produce air bubbles or foam nozzle shroud through the foam sprayed into the combustion surface to form a foam layer, using foam interdiction, cooling and achieve the purpose of stifling effect fire. (B) technical parameters