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. Traditional slide gates and butterfly valves commonly allow packing of material, which prevents positive air and material shutoff.
Unlike common knife gates and butterfly valves, the Orifice Gate is specifically engineered to handle dry bulk powders, pellets, and granules. Knife gates rely on soft elastomeric seals which erode or tear away in service. Butterfly valves incorporate discs that cause significant flow restrictions, thus impacting system performance and throughput. Both designs promote wedging and packing of materials, preventing positive air and material shut off. The Orifice Gate eliminates design flaws associated with knife gates and butterfly valves.
Key Industries Served: Agriculture, Chemicals, Foods, Minerals, Petrochemicals, Plastics, Textiles
Rated for ATEX Zone 0/20 internal and Zone 1/21 external
- Pneumatic (Dense & Dilute Phase) or Gravity Flow Conveying
- Handles non abrasive to moderately abrasive powders, granules, and pellets
- Mechanically self cleans on opening stroke
- No pinch points or exposed moving parts for safe operation
- Wear compensating hard polymer seals
- Unobstructed opening
- Food friendly options available
- Horizontal or vertical valve orientation
- Open / closed or volume metering of material
- Seals protected from material flow stream
- Serviceable while in-line
- Material construction options available
- Standard sizes: 2″ – 16″ | 50mm – 400mm | Contact us for custom sizes
Shim removal for seal adjustment while valve is in-line.
Blade adjustment through front access panel.
Mechanically self cleans on opening stroke.
Ordinary valves rely on soft rubber seals which erode or tear away in service or bonnet packaging which can “relax” allowing leakage, necessitating frequent maintenance. The Orifice Gate eliminates these problems by using live loaded hard polymer seals.
Round end blade knife gates and butterfly valves commonly allow wedging of materials preventing positive air and material shut off. The patented design of the orifice blade prevents material from wedging at the sides of the gate and the closing action clears material away from the sealing areas to allow positive valve closure.
Traditional blade retention ledges and open bonnet areas where materials lodge and remain trapped have been eliminated. This permits cleaner system operation and eliminates the associated valve seizing and binding caused by trapped materials.
System performance and material flow are enhanced over butterfly valves with the elimination of the disk in the material flow area. The excessive shearing of materials in traditional knife gates increase gate seal wear. The “scissor” action of the sliding orifice minimizes shearing of materials extending seal service life.
Technical Article: Orifice Gate vs. Clear Action Gate: Which One Should I Use?
|Size/Bore Options||2” to 16” Diameters|
|Media||Powder, Pellets, Granulars|
|Connection Options||SVC Standard Stud Pattern, ANSI, DIN, JIS, and Custom Flanges available|
|Media Temperature||180°F (82°C) for standard gate with modifications allow up to 400°F (204°C)|
|Media Pressure/Vacuum||Up to 15 psig, 0.1 MPa, 1 barg (depending on gate size)|
|Valve Construction Options||304 or 316L Stainless Steel, Aluminum, and/or Carbon Steel|
|Material Contact Options||304 or 316L Stainless Steel|
|Seal/Seat Material||Nylon, PET, UHMW, Glass Filled Teflon, Natural Rubber, and/or Silicone Rubber|
|Drive/Acuation||Double Acting Air Cylinder and Solenoid Operated Air Control Valve, Electric Actuator, Chain Wheel, Hydraulic|
|Position Confirmation||Magnetic Reed, Proximity, or Mechanical Limit Switches|
|Compliance Approvals||CE, ATEX, FDA|
|Industry Use||Agriculture, Chemicals, Foods, Minerals, Petrochemicals, Plastics, Textiles|
|*more modifications available based on application|
CS Body/S4 or S6 Contact: Offered in 2” thru 14”. All actuator options are available. Traditional and over-sized cylinder option are available up to 5” size. The valve body is carbon steel and bore matches standard 11 Ga. (0.120 Wall) tubing. 3/8” thick Carbon Steel out flanges and 304SS sleeve inserts. Bonnet access covers, Power Plate, and End Plate are Carbon Steel construction. All fasteners are zinc plated and there are NO acorn nuts. (Valve designed for indoor service).
AL Body & Outflange/AL Contact: Bore matches standard 11 Ga. (0.120 Wall) tubing. Out Flanges and sleeve insert is 6061-T6 Aluminum Construction. All fasteners are 18-8 SS.
AL Body & Outflange/S4 or S6 Contact: Bore matches standard 11 Ga. (0.120 Wall) tubing. 3/8” thick Out Flanges and sleeve inserts are 304SS construction. All fasteners are 18-8 SS. *Must choose material contact.
SS Body & Outflange/S4 or S6 Contact: Bore matches standard 11 Ga. (0.120 Wall) tubing. 3/8” thick Out Flanges and sleeve inserts are 304SS construction. All fasteners are 18-8 SS. *Must choose material contact.
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.
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