Centigufal fans are air expulsion turrets, external to install on roof, in vertical position with horizontal or vertical air jet.
These fans are adapted to air expulsion that should be not corrosive, without liquid and abrasive particles, temperature not superior 80 ºC. Functioning limit is 2 hours by temperature of 400 ºC, are specific for security application for a smoke evacuation in case of fire (tested by CTICM – France, certifications issued PV. 95-E-319 and PV. 95-E-320).

Manufacturing features/Technical data
- Supporting frame in zinc plated stainless steel, with security grid, according to EN 294 for antiaccidental contact protection of rotating parts.
- Back-inclined centrifugal impeller in zinc plated stainless steel, balanced according ISO 1940 =6.3. and directly coupled to motor.
- Spanning base with exhaust nozzle in zinc plated steel.
- Protection cover and coveyor for the turrets with vertical air jet, in ABS with anti-UV protection film.
- Asynchronous electric motor three-phase/monophase, closed with external ventilation, Class F, IP55, insulation, unification IEC-UNEL-MEC with the following possible electrical data 400/3 50-60 Hz V230/150-60 Hz.
- Opportunity of regulation through the autotrasformer or electronic regulator/ inverter.