RD
Volumetric Flow Controller

Designed to maintain a constant volumetric flow in ventilation systems, independent of system pressure and changes in system pressure within the permitted range.


Volumetric flow is set at the factory. Volumetric flow is easy to readjust using the adjusting device with volumetric flow scale.

The control plate mounted in a low-friction bearing ensures high response sensitivity at low minimum response pressure up to a maximum differential pressure of 600 Pa.

The volumetric flow controller can be installed in any position.

Characteristic features of controllers:

  • Universal applications (supply air, return air, low pressure or high pressure systems)
  • Compact design for insertion in ducts or pipes allows a variety of applications.
  • Maintenance-free under normal conditions
  • The volumetric flow controller can be installed in any position.
  • Function also ensured with short flow lengths
  • For applications up to maximum operating temperature of 60°C
Questions about the product

Product group

Control Units

Type

Volumetric flow controller constant

Article

RD
Volumetric Flow Controller constant

Size/Volumetric flow m3/h

  • 80: 15/50
  • 100: 15/100
  • 125: 30/180
  • 160: 120/300
  • 200: 210/500
  • 250: 300/700

Plastic version for duct installation RD

Round casing made of black plastic, control plate made of plastic, mounted in low-friction bearing.