NAVV

Construction

• Long casing with motor inside the duct
• Standard diameters from 450 until 2240mm
• Steel welded casing with two identical flanges
• Standard coated after construction
• Direct driven
• Cast aluminum or cast iron motor IEC B3 3x400V 50Hz
• Impeller with cast aluminum center boss and aluminum blades
• Airflow selectable, motor <> impeller
• Impeller balanced following the norm ISO 1940-1 quality G6.3

Alternative

• Non-standard dimensions
• Stainless steel construction
• Hot dip galvanized or duplex coating
• Specific motor
• Aluminum blades
• Construction following Atex norms type Gas II 2G 3G | Dust II 2D 3D

Application

Duct fan used when high performances and high efficiency are required, thanks to the presence of a guide vane system.