The VSD series direct discharge valves are developed for dosing products when discharging in silo or storage bin. It can also work in feed pneumatic transfers through a particular discharge hopper. The valve may be used for transport pressures that can reach up to 2 bars. The recommended composition of the rotor depends on the product to be handled. This series is available with a volume that ranges from 4.5L/rev to 65L/rev.