Axial smoke exhaust fans VO-21-210А DU

The BO-21-210 ДУ (VO-21-210 DU) fan is equipped with axial impellers directly driven by an industrial induction motor.

Can be used in the general ventilation mode, except for: VO-21-210А-8DU-4/12,5DU-6 and VO-21- 210B-5DU-4/8DU-4/12,5DU-8/12,5DU-6.

Can be used in the general ventilation mode at a speed decreased by not less than 25% of the speed specified in the catalogue (for example, using a frequency converter). This kind of application must be approved by the manufacturer.