External grilles

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The GI Series units are aspiration grilles with fixed horizontal blades 49° degree inclined used for external air-intake, for ambient exhausted air-expulsion, for air-recycling into internal structures and for general ventilation. It is exhorted the application of a protective bird net for the external installation of these grids.

Technical data

  • Standard dimensions from 400x390 up to 2.000x1.990 mm
  • Practicable special dimensions on demand
  • Wholly anodized aluminium construction
  • RAL 9010 painted aluminium construction on demand
  • 50 mm pitch fixed blades horizontally arranged
  • Galvanized steel counterframe
  • Aluminum box counterframe
  • Galvanized steel Plenum with or without insulation
  • Triple use clips for fixing damper, counterframe and plenum
  • Fixing by screws


  • Volume control damper SC


GI Series


Air-flow rate

Technical Catalog