HF-radial roof fans of type HF D ?-17/15 D

HF-radial roof fans are excellently suitable for the extraction of aggressive exhaust air

and gases. Radial impellers are driven directly by an installed motor ( impeller flush on the

motor shaft). The delivered medium flows through the fan in axial direction. The motor is

fully encapsulated by the exhaust airflow.

The fan housing of this series are made in hardly inflammable polyethylene (PEs/PE-FR)

rotationally sintered, the impeller is made via injection moulding process in hardly

inflammable polypropylene (PPs/PP-FR). A statically and dynamically balanced impeller

(quality class Q 6.3 to VDI 2056), in conjunction with a flow-optimized fan housing,

ensures very quiet run.