Steel Control Damper

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Model:	L517 / L518
Filter:	L517,L518
Minimum Panel Size:	8" x 6"
Maximum Panel Size:	48" x 72"
Frame Depth:	5 ½"
Frame Type:	Hat Channel Shaped
Frame Material:	16 ga. Galvanized Steel
Blade Type:	Airfoil Blade Design
Blade Material:	16 ga. Galvanized Steel
Blade Action:	Parallel or Opposed
Stops:	Galvanized Steel at Head and Sill
Bearings:	Heavy Duty Molded Nylon
Axles:	Plated Steel Stub
Linkage:	Plated Steel Tie Bar and Crank Plates; Stainless Steel Pivots Contained in Jamb
Actuator:	½" Extended Shaft, Manual Quadrants 120V, 24V, or 230V Electric or Pneumatic
Finish:	Mill
Temperature:	-40° F to 200° F

Face Bypass:	Horizontal, Vertical or Perpendicular
Sleeves, Transitions, Side Plates
304 Stainless Steel
Vertical Blades
Flange Frame:	Front, Rear or Both
Jack Shaft:	Stainless Steel
Bearings:	OIL or Stainless Steel
Axles:	Stainless Steel
Jackshaft:	½" or 1" diameter, depending on damper size
Explosion Proof Housing
Transformer
Pilot Positioned (for pneumatic actuators)
Copper Tubing:	For Pnuematic
Security Bars