Superior’s vent and closure system is at the cutting edge of grain aeration and fumigation.

Our vents allow for maximum airflow and our unique vent closure design creates a gas tight seal. The closure flaps are connected to a pulley system controlled from the ground which will hold the flap open when the silo is in aeration phase and then shut up to a gas tight hold against a rubber gasket (gasket not shown in photo) in the fumigation phase. By not exposing the flap and gasket to the outside elements the seal quality will be maintained.