Cost-effective construction
Corrosion-resistant design

Supply and exhaust air safely under control with just one controller.

With the VRD round volume flow controller, volume flows can be controlled constantly and variably, right up to full shut-off. Depending on the design, use in polluted/contaminated air is possible.
Actuation and control are carried out with external energy, either electrically or pneumatically.
With 2 dampers for supply/exhaust air control in parallel ducts (e.g. hotel rooms).
With insertion ends for a lip seal suitable for connection to air ducts in accordance with DIN EN 1506 or
EN 13180.

  • Cost-effective design and low wiring costs, as only one compact controller is used for supply and extract air
  • Universally suitable for mounting various controller makes/components
  • Combination with spring return or high-speed drives possible
  • Also available as a corrosion-resistant version
  • Available with dynamic (VRD) or static (VRD-s) measuring principle

Ready for a breath of fresh air? Contact our comfort air experts now and breathe a sigh of relief - in the truest sense of the word!

Technical data

Technical Data for L_pa= 35 dB(A)

Volume flow range 19 - approx. 1100 m³/h Differential pressure range up to 1000 Pa Casing leakage according to DIN EN 1751 Class A standard Casing leakage according to DIN EN 1751 Class C (optional) Airtight shut-off to DIN EN 1751 Class 4 (DN 100 + 125: Class 3)

Sizes [mm] Ø 100- 200


PPS Silencer SDE (optional) Messprinzip dynamisch (für nicht belastete Luft) Static (for polluted air) (optional) Housing version Galvanized steel coated Stainless steel


Ordering help for variable volume flow controllers
FILE 217.52 kB
Planning aid for volume flow control
PDF 367.24 kB
Overview brochure Product overview air distribution German
PDF 2.1 MB
Tender text variable volume flow controller VRD German
DOC 32.71 kB