FRP Exhaust Duct Damper Rehabilitation

Restoring a damaged internal damper assembly and repairing the FRP exhaust duct to return the system to reliable operation.

The Problem

An FRP exhaust duct system was experiencing operational issues associated with a damaged internal damper assembly. The condition required corrective work to restore proper functionality while maintaining the integrity of the existing duct system. Repair needed to be performed during 12-hour downturn to avoid loss of production.

The Solution

Our team created an access point in the FRP exhaust duct to reach the internal damper assembly. The team performed the necessary mechanical repairs and adjustments before repairing the duct section. Once the repair work was completed, the access area was reinforced and coated with a protective coating system to provide long-term durability.

Project Pictures

BEFORE

Interior of an FRP exhaust duct with damaged damper shaft and worn lining
Damaged FRP exhaust duct damper with worn interior before rehabilitation

DURING

AFTER

Interior of an FRP exhaust duct with rehabilitated damper blade
FRP exhaust duct section with red composite repair band at the damper