Foam Proportioner Mod. FI-PM is a venturi proportioner that guarantees a capacity range of 1:7. It can have a diameter of a minimum of 3" and a maximum of 12" (extra standard on request). It can work with low pressures, ensuring minimum pressure losses.
Inside the foam proportioner, foam concentrate is in contact with the water with the requested mixing percentage, thus forming the foam mixture that will be channeled to the pipe of the distribution network.