Adjust the flow
Change the sleeve opening to vary discharge.
Vortex gates and valves are engineered to improve flow control, reduce leakage, and ensure consistent, reliable operation in bulk material handling systems.
Improve Flow | Reduce Leakage | Increase Reliability
Control a gentle, gravity-fed discharge.

The Vortex Iris Valve uses a flexible sleeve that opens from the centre and twists closed. Manual adjustment allows progressive restriction of free-flowing dry materials, including delicate products.
Tell us what you handle, where the component fits, and what needs to improve.
Also referred to as: Iris diaphragm valves; Flexible sleeve valves; Bulk bag flow-control valves.
Change the sleeve opening to vary discharge.
The flexible sleeve and gradual closing action help limit damage.
Replaceable sleeves and optional wear liners support maintenance.
Inspect the construction using Vortex’s interactive product model.
Open Interactive 3D ModelReview the exact duty, material, temperature, connections, and control requirements with RTS before ordering. Published ranges cover a product family and vary by configuration.



A material name, a process sketch, and a description of the current problem are a useful starting point. Include throughput, bulk density, temperature, and operating conditions when available.
For replacements, send the existing model or serial number, opening dimensions, bolt pattern, available space, and photos.
Send the existing dimensions, connections, actuator details, and operating duty. RTS can review the installation and identify what needs to match before a replacement is selected.
Include abrasion, corrosion, cleaning, temperature, and product-contact requirements. Let us know any required documentation or hazardous-area classification.
Share the upstream and downstream equipment and the intended operating sequence. RTS can help review how the component fits your conveying, batching, or loading arrangement.