Ruskin Model FDR25 Round Fire Dampers

• 1 1/2 Hour Rating
• 165°F Fusible Link
• U.L. Listed for use in Dynamic and Static Systems
• Integral Labor-saving 14" Long Sleeve

Note: Make wall opening a minimum of 1" to a maximum of 2 1/2" larger than the nomimal damper size.

Standard Construction

• UL555 Dynamic Rating: Vertical or Horizontal mount up to 18" in diameter. Maximum 4000 fpm at 4 in. w.g.
• UL555 Fire Rating: 1 1/2 hour UL classified fire damper.
• Frame: 20 gauge galvanized steel with a standard 14" integral sleeve and retaining cinch plates.
• Blade: Single skin galvanized steel, 14 gauge thickness.
• Axle: 1/2" diameter.
• Bearings: Stainless steel sleeve, pressed into frame.
• Fuse Link: 165°F is standard. 212°F available.
• Mounting: Vertical or Horizontal.
• Finish: Mill galvanized.

Size (D)	List Price	Your Price
6" ø	$79.00	$35.55
8" ø	$90.00	$40.50
10" ø	$98.00	$44.10
12" ø	$106.00	$47.70
14" ø	$115.00	$51.75
16" ø	$125.00	$56.25
18" ø	$144.00	$64.80

Accessories

Extra Fusible Links
165°F or 212°F.