The Colasit CRDV-D roof fan has a robust housing made of weather-resistant plastic. It is equipped with 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. 340 m3/h to max. 5600 m3/h
Static pressure:
min. 50 Pa to max. 1700 Pa
Efficiency (tot. mech.):
up to max. 42 %
Inlet and outlet Ø:
200, 250, 315 mm

Housing material

PPs, PPs-el

Impeller material

PPs, PPs-el, PVDF


Direct drive

Ex Protection

EX Logo

Version available in ATEX zones 1 + 2