Subscribe to our monthly newsletter.

Share this item

Since their conception decades ago, the Vortex Orifice Gate and the Vortex Roller Gate have been two of Vortex’s most popular solutions for handling dry bulk solid materials. By their simplest definitions, both the Orifice Gate and the Roller Gate are slide gates. However, the application benefits for each gate can be quite different.

Inlet & Outlet Shape

• Orifice Gate – Round Inlet
• Roller Gate – Square Inlet

Gate Size

Alterations can be made to both the Orifice Gate and Roller Gate to build custom gate sizes. This can impact the blade’s travel distance, stack-up height, and many other variables of gate construction. Consult Vortex’s application team to discuss modifications that may/may not be made to accommodate your installation requirements.

Conveyance Type

The Roller Gate should only be used in gravity flow applications. If a system has pneumatic processes or differential air pressures within the system at any point, often times, a Roller Gate should not be considered as an option. However, do note that even though the Roller Gate is considered a ”gravity-type” gate, it is commonly used in dust collection systems.
Depending on gate size, the Orifice Gate is designed to seal against pressures up to 15 psig (1 barg). It can be used in both positive pressure and vacuum systems (dilute or lean phase).

Follow the link to read more about:

• Stack-Up Height
• Ease of Integration within a System
• Materials Handled
• Cost Considerations
• Blade Type
• End Seal Design
• Wear-Compensating Seals
• Self-Cleaning Seals
• Maintenance-Friendly Features
• Employee Safety