1½ Hour Rated True Round Single Blade Fire Damper

A Division of MESTEK, Inc.

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Model:	R5
Filter:	R5
Depth:	16"
Minimum Panel Size:	8" Diameter
Maximum Panel Size:	24"Diameter
UL Classified:	1½ Hour Fire Resistance
Certifications:	Underwriters Laboratories, Inc.: 555 National Fire Protection Association: 80 & 90A CA State Fire Marshal Listing
Orientation:	Vertical or Horizontal
Frame Material:	20 ga. Roll Formed Galvanized Steel
Blade Material:	20 ga. Double Thickness Galvanized Steel (equal to 14 ga.)
Axles:	½" Diameter Galvanized or Plated Steel
Bearing:	Oil Impregnated Bronze Sleeve
Caulking:	UL Approved
Actuator:	Non-Motorized Spring Closure Mechanism
Fusible Link:	165°F
Finish:	Mill
AMCA:	Tested in accordance with standard 500D
Max Differential Pressure:	4 in. wg.
Max Velocity:	2000 / 3000 FPM

Fusible Link:	212°F
Retaining Angles:	Rolled
Bearings:	Stainless Steel
Retaining Plates
Integral Dual Position Indication (IDPI) Switches