Roller Gate

The Vortex® Roller Gate™ is the best choice for handling dry material in gravity flow or low-pressure applications. This gate is available in a wide variety of configurations including rectangular sizes and customer specific hole patterns.

• Cam-adjustable rollers for in-line maintenance
• Replaceable bonnet seals for in-line maintenance
• Live loaded, wear compensating hard polymer bonnet & side seals
• Positive seal of materials/dust-tight seal across the blade and to atmosphere
• Mechanically self-cleans its seals with each actuation
• No pinch points or exposed moving parts for safety
• No internal cavities to prevent wedging, lodging, and spoilage
• Narrow profile for limited space applications

Cam-adjustable rollers for in-line maintenance

Replaceable bonnet seals for in-line maintenance

Live loaded, wear compensating hard polymer bonnet & side seals

Positive seal of materials/dust-tight seal across the blade and to atmosphere

Mechanically self-cleans its seals with each actuation

No pinch points or exposed moving parts for safety

No internal cavities to prevent wedging, lodging, and spoilage

Narrow profile for limited space applications

Non-abrasive to moderately abrasive powders, pellets, granules and dusts. Modifications available for handling sticky and/or corrosive materials, and for wash-down.

Available in square or rectangular sizes. Round transition options are available

Standard flange or CEMA flange Custom flanges are available

180°F | 80°C for standard gate, with modifications that allow up to 400°F | 205°C

6061-T6 aluminum, 304 or 316L stainless steel

Nylon, PET, 25% glass-filled PTFE, felt

PET, 25% glass-filled PTFE, hardened steel, stainless steel & bronze

UHMW-PE, polyurethane, PET, 25% glass-filled PTFE

Double-acting air cylinder, hand wheel/crank, chain wheel, electric actuator

Magnetic reed, proximity or mechanical limit switches, and/or clear bonnet covers for visual indication

Dual cylinder actuators Sealed body air purge Return Pan & Special Service Inlet

ATEX Zone 20 (internal), ATEX Zone 21 (external), FDA

Hardened steel rollers replace standard nylon rollers.

Modifications are made allowing 250 F (121 C) continuous to 300 F (149 C) intermittent service.

Modifications have been made to allow for continuous operation at 400 F (204 C) and intermittent operation at 450 F (232 C).

Gate blade is electropolished. Polyethylene (PET or UHMW) pressure plate seals are used to replace nylon.

Bonnet is manufactured with solid, gasketed covers. (Allows the valve to accept air purge.) *Additional modifications available based on application.

Vortex Roller Gate vs. Alternatives