BOX DAMPER

Closed blade ball bearing shaft support with manual locking quadrant.

BUTTERFLY DAMPER

Round duct damper with ball bearing shaft support and manual control lever.

EXTERNAL VARIABLE INLET VANE

Ball bearing shaft support with external ball joint control ring construction.

INSULATED INLET VANE

1200⁰ Construction with ceramic bushing center support and ball bearing external support.

GUILLOTINE DAMPER

4' X 6' Isolation damper with linear gear drive.

GUILLOTINE DAMPER

Stainless steel construction with ball screw drive and limit switches.