Ventilation systems

Ventilation grille

Ensuring ventilation, but effectively denying access to snow, rain, insects and unauthorised intruders - GRITEC ventilation grilles solve this demanding task in a particularly intelligent way. For example, by means of storm-proof aluminium louvres, highly effective perforated plates or a range of special solutions for very specific requirements. Poke-proof ventilation prevents condensation and ensures the dissipation of transformer heat loss. The individual elements can be flexibly adapted to the structural conditions and are suitable for installation in both doors and walls.

  • Aluminium ventilators in 50 or 100 mm depth versions
  • Ventilation domes for all-round continuous ventilation
  • Ventilation domes: for ventilation above the roof, for sophisticated ventilation systems or optional, if there is no space in the building itself for the installation of a ventilation in the wall.

Ventilation grille GRITEC
Ventilation grille GRITEC


  • high free ventilation cross-sections
  • favourable flow resistance coefficients
  • Construction depth 100 mm : ζ = 17.1
  • Construction depth 50 mm : ζ = 26.2


  • Sliding plate for manual regulation of the air flow
  • Fan units (can be integrated) for forced ventilation
  • Design RC2, RC3 possible
  • Pressure relief type EE / EV 06 of different sizes (only construction depth 100 mm)
  • suitable for door and wall installation


GRITEC offers a range of special pressure relief systems for the safe handling of increased pressure loads, as can occur in the event of technical incidents. Different variants and functionalities allow the best possible adaptation to the respective building.



  • Pressure relief elements (opening in case of overpressure) as an additive to the ventilation blind LLE
  • Shut-off dampers (closing in case of overpressure) as an additive to the ventilation blind LLE


Special version for pressure relief elements:

Actuator for controlling the air circulation (manually or by means of motor actuator controlled by thermostat or hygrostat), whereby the pressure relief function can be guaranteed in any operating position.

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