Dynair PR-Q HT Backward curved centrifugal fans F400

Backward curved blade centrifugal fans, suited for high temperature smoke extraction. The main characteristic of the PR-Q series is the rectangular construction, which allows the fan to be positioned in four different orientations (0°-90°-180°-270°) without any additional components. The lack of protruding motor support allows for a more compact design. Available in 6 sizes. These PR-Q HT fans are suitable for continuous service up to +100°C and 2 hours at temperatures up to +400°C. This series of fans are F400 certified by the independent APPLUS committee, according to EN12101-3 standards.




  • Volute casing with rectangular frame, made from galvanized steel sheet, coated in epoxy.
  • Single inlet, high efficiency backward-curved galvanized steel impeller with a die-cast aluminium hub.
  • Only available in Execution 5, with impeller coupled directly to the flanged motor. (Rotation:RD)
  • Asynchronous three-phase motor, with IP55 grade protection and Class F insulation, CE marked, compliant with the following standards: IEC 60034, IEC 60072, EMC 2004=108/CE, LVD 2006/95/CE. Suitable for S1 service (continuous operation at constant load).
  • Power supply: 400V~50Hz three-phase.


  • Inlet and outlet protection guard manufactured according to UNI 12499 standard and protected against atmospheric agents.
  • Inlet/outlet flexible connectors
  • Anti-vibration supports
  • Inlet/outlet counter flange
  • Speed controller (available in  autotransformer or inverter version)

Available upon request:

  • 2 speed version with a double polarity motor

For further details, feel free to contact KOMPEL Kft.