Leakage Class I • Airfoil Blade • 250°F or 350°F • UL Classified Smoke Damper
: 16-GA galvanized steel
: 5½" X ⅞" Galvanized steel Hat Channel
: 20-GA Double skin ( equivalent to 14-GA )
: Airfoil type
: Plated Solid Steel stub
: Oil impregnated bronze
: Plated steel angle & crank plates with stainless steel
pivots; In-jamb type or on-blade type
: Stainless steel
Exact Size (no undercut)
Actuators - 120V, 24V, 230V or Pneumatic
Right Hand and/or Internal Actuator Mounting Locations (Restrictions Apply) Integral
Dual Position Indication (IDPI) Switches
Model SM-501 Flow-Rated Smoke Detector (10” Minimum Damper Height)
Model 2151 No-Flow Smoke Detector (12” Minimum Damper Height)
Momentary Test Switch Remote Test Box
Tab-Lock Retaining Angles
Stainless Steel Bearings
Stainless Steel Axles
Sleeves of Various Depths and Gauge Thicknesses (restriction apply)
No Sleeves (restriction apply) Round or Oval Transitions
Damper frames are provided approximately W undersized. The addition of a sleeve will increase the size of the assembly.
Damper >= 12” in height with factory mounted SM-501 smoke detectors require a minimum 19” deep sleeve (10.5” on the actuator side); detectors will be mounted on the side of the damper opposite actuator.
Damper < 12” in height with factory mounted SM-501 smoke detectors require a minimum 20 deep sleeve (11.5” on the actuator side); detectors will be mounted on the bottom or top of damper.
Smoke Detectors can be ordered for field mounting with standard 18” deep sleeve.
Dampers for horizontal installation can only be mounted in a fire barrier constructed of masonry/concrete materials.