Page 209 - FanPedia - By Twin City Fan and Blower

FAN-PEDIA DAMPER OVERVIEW

Published by
Twin City Fan & Blower INDUSTRIAL GRADE
©2017 TCF.COM

EXTERNAL INLET VANE

Also Known As:
- Vortex Damper
- Inlet Damper
- Variable Inlet Vanes
- Inlet Guide Vanes
- Radial Inlet Damper

Application: Used for contaminated airstreams or
for high temperature airstreams up to 600 F. Radial
o
vanes at the fan inlet pre-spin the air entering the
fan to control the flow. Vanes come standard with a
manual handle, but can be provided with an actuator.
External vanes have a housing and are bolted to the
fan inlet.

NESTED INLET VANE

Also Known As:
- Vortex Damper
- Inlet Damper
- Variable Inlet Vanes
- Inlet Guide Vanes
- Radial Inlet Damper

Application: Used for clean airstreams up to 600 F.
o
Same function as the external inlet vane, but the
vanes are nested within the inlet funnel. Replacing
the vanes require the inlet funnel assembly to be
replaced. Vanes come standard with a manual
handle, but can be provided with an actuator.
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