SOLBERG Foam Makers are available in two models with nominal flow rates ranging from 10 – 300 gpm (38 – 1136 lpm) at 30 – 150 psi (2 – 10 bar) with threaded inlets and outlets. The stainless-steel discharge tube incorporates a mixing barrel, an orifice plate (sized for the required flow at a given pressure) and an air inlet to allow air into the foam solution stream to generate expanded foam. The foam maker is normally installed in the line of a semi-fixed or fixed foam fire protection system. SOLBERG Foam Makers are air-aspirating foam discharge devices used primarily for the protection of the seal area of open top floating roof storage tanks and dike areas around storage tanks. Additional applications include protection of spill hazards and diked flammable liquid storage areas.