The Mistrale 75 is a medium format natural ventilation inlet that has been specifically designed to fit in to both curtain walls, masonry and windows.

A typical Mistrale 75 cassette comprises of a Class ‘A’ 50 or 75mm pitch external weather proof louvre and an insulated air volume damper to control the air movement Additional components such as silencers, heating/cooling coils, internal fascia grilles and mounting/housing sleeves can also be added.

Its slimline design and low weight level allow the unit to comfortably bead into a window aperture. The cassette comes complete with either a glazing bead to allow fitting into standard window frame or border flanges for convenient wall installation.

Key Performance Features

  • U Value: 0.96 Watts/m2/K
  • Leakage: less than 5m3 per hour per sq/m
  • Weather Rating: Up to Class A
  • Size Range: 200×225 up to 2000×1050

Multiple units to support large screen or continuous run louvres are also available

Mistrale 75 is designed to provide smooth, accurate and stable airflow. The volume control damper is a new and unique design that offers extremely low leakage (when closed) as well as a very low u value. Configured using insulating UPVC extrusions with integral air gaps, cold bridge effects and heat transfer are dramatically reduced creating a unit with an extremely low U value.

The system works automatically with the damper typically actuator driven in accordance with a demand signal from the building controls. Total integration into the building control strategy is also possible either using Gilberts own control system or a full building management suite.