Available in a wide variety of configurations, including rectangular sizes and round inlet/outlet transitions, Vortex roller gates from Vortex Valves, a division of the Salina Vortex Corp., are designed to handle dry bulk material in gravity flow applications in which positive material shutoff and dust-tight sealing are required. Suitable for many dry material applications, such as mixing and blending, the roller gate, according to the company, also grants: