RATEC airflow control systems ensure that exactly as much air or gas reaches your pneumatic conveying system as the process requires. Too little air leads to deposits and blockages; too much air wastes energy and increases wear on pipes and bends. Every airflow control system is custom-made: we design it for your conveying system, your bulk material, and your air supply, and manufacture it in our own plant in St. Veit an der Glan.
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How airflow control systems work
An airflow control system is installed between the air or gas supply and the system’s feed-in points. It measures the flow rate and uses valves to regulate it to the required value. Depending on the system, this is done for a single conveying line or distributed across multiple feed-in points along the line. This keeps the conveying air constant, even if pressure or back pressure in the system changes. Control is manual or automatic via your control system, depending on requirements. We supply the system as a ready-to-install unit in a noise-damping enclosure that only needs to be connected to the air supply and conveying line.
Why airflow is crucial
In pneumatic conveying, almost everything depends on the right airflow. If the air velocity is too low, the bulk material settles in the line and conveying slows down. If it is too high, energy demand increases, as do abrasion on the line and bends and stress on the product. Controlled airflow keeps the system in the optimal operating range—at any throughput.
Your benefits
- Stable material flow: fewer deposits, fewer blockages.
- Energy-efficient: only as much air as necessary.
- Less wear: gentler on pipes, bends, and product.
- Reproducible: consistent conditions in every conveying cycle.
- Ready to connect and quiet: complete unit in a noise-damping enclosure.

Technical specifications
| Feature | Airflow Control Systems |
|---|---|
| Loading | Control of air or gas volume in conveying systems |
| Application | Conveying air for pneumatic conveying |
| Control | manual or automatic via the control system |
| Design | e.g., ready-to-install unit in a noise-damping enclosure |
| Medium | compressed air or other gases |
| Number of control points | custom, from one to many feed-in points |
| Materials | as required |
| Special versions | on request |
We design the measurement and control technology, valves, enclosure, distribution, and integration into your control system from scratch for each project. The versions shown are examples; other designs are possible at any time.
What matters during design
- Conveying system: conveying method, line length, diameter, number of feed-in points.
- Bulk material: particle size, bulk density, flow behavior, sensitivity to abrasion.
- Air supply: available pressure, airflow, air quality, gas used.
- Requirements: manual or automatic control, connection to the control system, installation location, Ex area.
Customized by RATEC
RATEC is at home in the bulk materials sector and manufactures in its own plant in Carinthia, certified to ISO 9001, EN 1090-1, and ISO 3834-2, from one-offs to small series. Airflow control systems complement our injector nozzles and Laval nozzles, because both require the right conveying air to operate reliably. As a custom component, no two airflow control systems are the same. The photos on this page show example versions from customer projects; your solution is created from scratch to your requirements. You can find an overview of all custom components under Custom components.
Want to keep your conveying air under control?
Tell us about your conveying system, bulk material, and air supply. We’ll get back to you with a concrete proposal.






