MAP/M type wide range mixers gather functions of the MAP model wide range bladder tank mixer with the possibility to use them with foam pump applications where the foam concentrate is pressurized independently from firefighting water. Its internal variable geometry technology makes this mixer a more reliable solution, where the flow rate demand of the system varies significantly, especially in cases of usage for sprinkler systems. Pressure arrives to the mixer simultaneously, controlled by internal mechanism to regulate the foam concentrate flow, and on the other hand, the firefighting water arrives to the mixer driving a mechanic lever mechanism to adjust foam concentrate flow accordingly. It is designed and manufactured to eliminate corrosion with brass-stainless steel material combinations. Fixed and mixing ratio selector options are available on request.