Firedos Stationary Proportioner is a purely mechanical pump consisting of water motor and piston pump. It is independent of electricity and emergency power supply. It provides a precise and reliable foam agent proportioning into the extinguishing water. The water motor can handle flow from 70 to 25000 LPM at proportioning rates of 0.5 %, 1 %, 3 %, 3+3 % and 6 %. The purely mechanical system provides a cost-efficient and eco-friendly proportioning rate testing, completely without firefighting foam. It is capable of handling all types of foam concentrates, even highly viscous, alcohol-resistant and fluorine-free foam agents.