Ventilation solutions


Hatch Fans
In-line Duct Fans
Axial Fans
Centrifugal Fans
Smoke Extract Fans 400 ºC/2h - 300 ºC/2h
Pressurisation Systems for Staircases, Lobbies and Evacuation Routes
Explosive Atmospheres ATEX fans
Fans for Ovens
Fans for Industrial Applications
Roof Fans
EC Technology and Efficient Fans
Indoor Air Treatment Solutions
Ventilation for Houses
Air Curtains
Accessories

Roof Mounted Centrifugal Extractor Fans


CRF
Centrifugal roof fans with low noise level

Centrifugal roof fans with low noise and external rotor motor.

Fan:
• Galvanised steel sheet construction.
• Backward curved impeller made of aluminium sheet metal except for models 225 and 250, which are made of galvanised sheet steel.
• Bird protection grid.
• Folding body for ease of inspection and maintenance.

Motor:
• Class F motors. External rotor and IP54 protection.
• Single-phase 230 V 50/60 Hz, except models 450 and 500, 230 V 50 Hz.
• Three-phase 400 V 50/60 Hz, except models 450 and 500, 400 V 50 Hz.
• Working temperature: -25 ºC +50 ºC.

Finish:
• Galvanised steel sheet.

On request:
• The variable speed drive (VSD) is supplied on request.