Roller Gates Installed on Bulk Bag Discharge System

Published: March 16, 2020

Quantity: 2 Vortex Roller Gates

Size & Weight: 8” (203.2 mm)

HandlingFine Granular

Location: Equipment Manufacturer, Kansas, USA


  • These rectangular roller gates were constructed to match the customer’s flange pattern and feature a valve body constructed from 6061-T6 aluminum, and blade & material contact areas constructed from 304 stainless steel.
  • Gates are actuated using double-acting air cylinders.
  • Lower bonnet seals are live loaded and silicone rubber backed. Valves also include cam-adjustable slide rollers and PET roller spacers.
  • Milled access slots in the side frame allows removal and replacement of bonnet seals while the valves remain in service.


These Vortex Roller Gates are installed on a H&H Design Series 2000 Bulk Bag Discharge System. The gates are installed below the bag bottom support pan and are used to control flow into the flex augers.