To be coupled to the auger discharge and discharge the material to be conveyed by means of an eductor, pressurized by a blower to be supplied per plant.

The valve allows the evacuation of material and at the same time prevents the entry of false air into the system.

It is composed of blades that fit perfectly into the casing to minimize air leakage while the material to be conveyed is being discharged. The pressurization system consists of two ducts that allow the conveying air to recirculate to the rotor blades and from there back to the conveying network, avoiding air circulation above the rotary valve.