The Colasit CDVA roof fan has a robust and seamless polyester housing made of weather-resistant plastic.  This roof fan has a standard three-phase motor according to IEC, can be adjusted in single or multiple stages and can be optionally upgraded with a frequency converter. The motor is separated from the exhaust air flow and therefore protected against corrosion.

Roof fan made of plastic, with roof fitting for exhaust air extraction from industrial buildings - Colasit



Volume flow:
min. 550 m3/h to max. 19300 m3/h
Static pressure:
min. 50 Pa to max. 600 Pa
Efficiency (tot. mech.):
up to max. 44 %
Inlet and outlet Ø:
400, 450, 500, 560, 630, 710 mm

Housing material

Seamless polyester (GFRP)

Impeller material



Direct drive