Aerovent IM-160 - Manual (Page 4)

Same Size Duct
Normal fan installation. Rating tables are based on
this arrangement. Variations in installations as indi-
cated below may provide more economical fan per-
formance but may require higher installation costs.
Tapered Discharge
Allows regain of a portion of the velocity pressure
to static pressure. The fan can then be picked at a
lower pressure for more economical operation. For
specific design information, consult your Aerovent
representative.
Converging Inlet & Discharge
Provides lower duct velocities and less friction to
airflow. This allows choosing a fan at lower pressure
for more economical operation.
AXIAL FLOW FAN
AXIAL FLOW FAN
AXIAL FLOW FAN
Suggested Connections For Fans in Duct Systems
Suggested Installations
2" To 6"
Companion
Flange
Riveted
Connection
Fan
Duct
Draw Bands
Fan
Duct
Fan
Duct
Aerovent
Companion
Flange
Flexible Connection Flexible Connection Rigid Connection
Minimum Vibration Minimum Vibration
(Use Canvas or Other (Use Canvas or Other
Suitable Material) Suitable Material)
Flexible connections between the fan and duct section
will reduce vibration to the duct and decrease noise.
Mounting the fan on vibration isolators is also necessary
for noise dampening.
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