Orifice Gate

The Vortex® Quantum Orifice Gate™ is specifically engineered to handle dry bulk solids in gravity flow, dilute phase, or vacuum conveying systems with pressures up to 15 psig (1 barg) depending on size.

• Live loaded, wear compensating hard polymer pressure plate seals
• Shimming system for in-line maintenance
• Displacement area as an alternative to packing materials into an end seal
• Positive seal of materials/dust-tight seal across the blade and to atmosphere
• Mechanically self-cleans its seals on the opening stroke, if actuated to full-open
• No pinch points or exposed moving parts for safety
• No internal cavities to prevent wedging, lodging, and spoilage
• Narrow profile for limited space applications

Live loaded, wear compensating hard polymer pressure plate seals

Shimming system for in-line maintenance

Displacement area as an alternative to packing materials into an end seal

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

Mechanically self-cleans its seals on the opening stroke, if actuated to full-open

No pinch points or exposed moving parts for safety

No internal cavities to prevent wedging, lodging, and spoilage

Narrow profile for limited space applications

Gravity flow & dilute phase pneumatic conveying applications. Can handle differential pressures up to 15 psig | 1 barg | 0.1 MPa, depending on gate size. Can be used in pressure or vacuum systems.

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

Standard stud bolt pattern, thru-bolt pipe connection, ANSI #125/150, DIN PN10 Custom flanges are available

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

Aluminum, 304 stainless steel, painted carbon steel

Nylon, PET, UHMW-PE, glass-filled PTFE, molybdenum disulphide-impregnated nylon

Natural rubber and/or silicone rubber

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

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

Sealed body air purge (Only available on traditional Orifice Gate) Special Service inlet

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

250°F-300°F (121°C-149°C) HIGH TEMPERATURE SERVICE: Replace standard natural rubber Load Seal and Void Filler on back of Pressure Plate with silicone rubber only (remove void filler).

400°F-450°F (204°C-232°C) HIGH TEMPERATURE SERVICE: Replace standard Pressure Plate, Shim Spacer and Load Seals with 25% Glass-filled Teflon Pressure Plate, Shim Spacer and Silicone Load Seals (Void Filler is removed). Replace standard Air Cylinder with Viton seal Air Cylinder. Replace standard SBR Flange Gaskets with 3/16” silicone sponge Flange Gaskets. This option is NOT food grade.

WATER WASHDOWN / STICKY MATERIALS: Replace Nylon6/6 Pressure Plates and Spacer Shim with PET Pressure Plates and Delrin or Acetron GP Spacer Shim. Replace standard Slide Blade with electropolished Slide Blade. *Additional modifications available based on applications.

Vortex Orifice Gates vs. Alternatives