Lau’s galvanized steel, low leakage control dampers offer sturdy, steel construction with interlocking frame design. The damper locks together without bolts, screws, or rivets that could shake loose. Frame corners are internally braced to reduce racking.
Axles positively lock to blades without screws or welds. Non-stick, non-corrosive bearings assure long life and ease of operation. Axles and bearings combine with a shake proof linkage for low maintenance operation.
When tested in accordance with AMCA Standard 500, our galvanized steel commercial control dampers also exhibit low leakage rates that meet the frequently specified, 10 CFM/sq. ft. at 4” w.g. level.
C302 Galvanized Steel, Low Leakage Commercial Control Damper Catalog
Control Damper Installation Instructions
Control Damper Operating & Maintenance Instructions
Supplemental Installation Instructions
Flange Frame Options
Spring Return Direct Coupled Actuator Installation Sheet
Control Damper Multiple Section Details
Minimum Torque Requirements for Commercial Control Dampers
Commercial Control Damper Actuators
SP100 Spec Sheet