Pressure regulator | DRF

Reduction of the regulatory effort
Optimum exploitation of energy-saving potential

The rectangular DRF pressure regulators maintain a constant pressure in a room or supply air/exhaust air duct and are also used to shut off air ducts.

They are also suitable for use in polluted or chemically contaminated air.
The static pressure in the duct or in the room is measured. The setpoint specification is compared with the actual value of the measuring point and the control damper is controlled accordingly until the desired setpoint is reached. Drive and control are carried out with external energy (electrical). Use e.g. in conjunction with induction devices.
The housing has flanges with slotted holes, with cage nuts for the insulated version.

  • Optimum utilization of the system’s energy-saving potential by reducing the required pressures
  • Reduction of the regulatory effort
  • Combination with high-speed drives possible
  • Optionally with additional volume flow measurement
  • For dynamic (DRF) or static measurement (DRF-s)

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


dynamisch (für nicht belastete Luft) Static (for polluted air) (optional) Silencer SDF (optional) Volume flow measurement (optional) Housing version Galvanized steel coated Stainless steel Messprinzip


Planning aid for volume flow control
PDF 367.24 kB
Overview brochure Product overview air distribution German
PDF 2.1 MB
Technical brochure pressure regulator DRF and DRFactive
PDF 2.08 MB
Tender text pressure regulator DRF German
DOC 31.13 kB
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