Dynair PQ-L ATEX Backward curved blade centrifugal fans

This series of fans are the ATEX certified versions of the PQ-L line of centrifugal fans. Compliant with ATEX directive 2014/34/EU, these fans can convey clean air between -20°C and +40°C. Suitable for installation in zone 1/21, areas which require high security against explosions and fire due to the presence of flammable gases (II2G) or dust (II2D). These fans are suitable for ducted installations, where high airflow and low pressure are required, such as electrical storage rooms, chemical or petrochemical industries and so on.




  • Volute casing made out of steel sheet, protected against atmospheric agenty by epoxy paint.
  • Aerodynamically shaped inlet cone, made from steel sheet, covered in epoxy paint.
  • Single inlet, high efficiency  backward-curved steel impeller. Class 3 versions are suited for operation at high speed.
  • For executions 1,9,12, a cast iron mono-block support is used, with ball bearings, designed for easy lubrication. Pulleys, belts, motor support and belt protection guard supplied as standard.
  • Asynchronous three-phase motor, with IP55 protection, 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).
  • Three-phase asynchronous motors, with IP55 grade protection, class F insulation, CE marked, compliant with the following standards: IEC 60034, IEC 60072, EMC 2004/108/Ce, LVD 2006/95/CE.  ATEX certification for explosive environments cat.G group II, thermal class T4, flame protection EX D. Suitable for continuous S1 service at constant load, available in B3 or B5 standard shapes.


  • Condensation drain hole (TS)
  • Inspection door (PI)
  • Inlet counter flange(CFA)
  • Outlet counter flange(CFP)
  • Inlet protection guard(RA)
  • Outlet protection guard(RP)
  • Inlet flexible connector(GA)
  • Outlet flexible connector(GP)
  • Inlet vane control
  • Outlet setting shutter
  • Anti-vibration mounts

Special versions:

For further details, feel free to contact KOMPEL Kft.