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Airflow control systems: the right airflow for every conveying system

Our airflow control systems precisely regulate the volume of air or gas in conveying systems. They ensure optimal efficiency and performance of your pneumatic transport systems.

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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.

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.
Airflow control system

Technical specifications

FeatureAirflow Control Systems
LoadingControl of air or gas volume in conveying systems
ApplicationConveying air for pneumatic conveying
Controlmanual or automatic via the control system
Designe.g., ready-to-install unit in a noise-damping enclosure
Mediumcompressed air or other gases
Number of control pointscustom, from one to many feed-in points
Materialsas required
Special versionson 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.

Frequently asked questions

Key factors include conveying method, duct length, product, air demand, available pressure, number of feed-in points, and the desired level of automation. RATEC designs every solution to customer specifications, so there is no flat-rate price. You will receive a customized quote.

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Depending on the system, this ranges from a single supply point to many along the conveying line. Each point receives its own regulated air volume. RATEC supplies air volume control systems as a complete unit in a sound-dampening housing, ready for installation in your system.

Manual control is sufficient if product and feed rate rarely change. Automatic control via the system adapts to changing conditions and can be monitored. RATEC offers both options and recommends the appropriate one during system design.

Too little conveying air leads to deposits and blockages; too much air increases abrasion, wear, and energy consumption. A regulated air volume keeps conveying stable and protects the product and pipeline. RATEC air volume control systems provide precisely the required air volume for this.