Backward curved blade centrifugal fans for clean or dusty air

Centrifugal duct fans suitable for clean or dusty air with temperatures from -20 to +40°C. Suitable for medium to high flow rates and medium to high heads. Suitable for many applications in industrial plant engineering and air conditioning.
Suitable for installation in zone 1/21, i.e. in areas or environments where a high safety factor against explosions due to gas, (II 2G) or flammable dust (II 2D) is required.

Robust construction for professional applications in potentially explosive environments
Diameters from 250 to 1,400 mm
Flow rates from 1,000 to 110,000 m3/h max
Suction nozzle with brass facing and painted sheet steel spiral casing
ISO 6580/EUROVENT 1-2 standard connection flanges
Suction nozzle with large radius
Single inlet sheet steel impeller with curved backward blades
Directly coupled 4 and transmission versions 9 – 12 with one-piece cast iron bearing housings
Versions on request for higher air temperatures