System engineers working with this project initially compared a Vortex Fill Pass Diverter to a flapper-style scale valve. Upon conclusion of the comparative tests between the two types of valves, the group discovered that the Vortex Fill Pass Diverter caused minimal damage to the roasted beans; much less than the flapper style diverter.
After further review, the engineers proposed an adaption to the Fill Pass that might further reduce damage to the beans. Instead of tangentially conveying the beans into the hopper stack, they suggested replacing the fill stack with a curved discharge tube to introduce beans directly into the bin.
The special design improved the overall bean condition.