Pressure regulator | DRF active

Highest measuring accuracy
Reduction of the regulatory effort
Optimum exploitation of energy-saving potential

Precise, energy-saving, with volume flow measurement and Active Control

The rectangular DRFactive pressure regulators keep a desired pressure constant in a room or supply air/exhaust air duct and are also used to shut off air ducts. Use e.g. in conjunction with LTG induction units. Drive and control are carried out with external energy (electrical).

  • Optimum utilization of the system’s energy-saving potential by reducing the required pressures
  • Reduction of the regulatory effort
  • With additional volume flow measurement and ActiveControl
  • Large control range for difference pressures up to 1000 Pa
  • Large measuring range from 1…10 m/s

Powerful effect: LTG ActiveControl map measurement

  • Highest measuring accuracy of all known systems in the low air velocity range.
  • Combines extremely short installation lengths with maximum control accuracy in the low air velocity range
  • Insensitive to incident flow due to optimized air routing to the measuring element
  • Max. 5 % deviation for Vnenn

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)

Differential pressure range up to 1000 Pa Airtight shut-off to DIN EN 1751 Class 4 (200 x 100: Class 3)

Dimensions (Length x Width x Height in mm)

200 x 100 - 1200 x 400


Stainless steel Silencer SDF (optional) Volume flow measurement Housing version Galvanized steel coated


Brief information on the pressure regulator
PDF 775.56 kB
Overview brochure Product overview air distribution German
PDF 2.1 MB
Technical brochure pressure regulator DRF and DRFactive
PDF 2.08 MB
Operating instructions Pressure regulator DRE(active) / DRF(active)
PDF 2.75 MB
Design tool for pressure regulator DRE(active) / DRF(active)
FILE 1.59 MB
Tender text pressure regulator DRFactive
DOC 41.63 kB