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Dynair PQ-L Backward curved blade centrifugal fans for dusty air

The PQ-L series of fans are designed  for industrial or commercial applications, for heating, ventilation, air-conditioning, or filtering in large estabilishments. They can also be used in many different manufacturing processes(lumber industry, chemical industry, mills, mines, foundries, etc.). PQ-L fans can convey somke, or slightly dusty air without abrasive particles, with temperatures between -20°C and +80°C  in standard configurations, and up to 300°C in special versions. This series features both belt-driven(execution 4) and direct drive(execution 1,9,12) versions, suitable for applications with high airflow  and moderately high pressure.

Airflow: up to 120 000m3/h
Max static pressure buildup: 14 500 Pa
Max operating temperature: 80°C

This product complies with the European Union’s ecodesign directive.
ErP Directive compliant fans

PQ-L/INOX stainless steel version
PQ-L ATX ATEX anti-explosion version



  • 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).


  • 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.