Roof fan in plastic CRDV 200D – 315D Performance Flow rate: min. 330 m3/h to max. 5’200 m3/h Static pressure: min. 60 Pa to max. 1’700 Pa Efficiency: max. 70 % Connection-Ø: 200, 250, 315mm Housing - Solid design - Thermoformed - Machined - Available in: PPs, PPs-el Impeller - Injection-moulded - 20 forward-curved blades - Torque transmission achieved by corrosion resistant aluminium hub - Adaptor for easy impeller mounting - Available in: PPs, PPs-el Drive Direct drive: - Impeller is mounted directly to the motor shaft Motor: - Three-phase motor - one / multi-stage - Flange mounting motor for...