Backdraft Damper S2SS Ruskin
STANDARD CONSTRUCTION
FRAME
2" x 5/8" x 16 gage (51 x 16 x 1.6) 304 stainless steel channel with windstops all around.
BLADES
26 (.6) gage 304 stainless steel blades with bottom break and curled edges. Polyurethane blade seals at top.
AXLES
Full length, 3/16" (4.75) diameter stainless steel.
BEARINGS
Nylon.
LINKAGE
1/8" x 1/2" (3 x 13) stainless steel tie bar. Two tie bars are used when width exceeds 24" (610).
FINISH
Mill.
MINIMUM SIZE
6" w x 6"h (152 x 152).
MAXIMUM SIZE
36"w x 60"h (914 x 1524). Use multiple panels for larger openings.
TEMPERATURE LIMITS
-40°F (-40°C) minimum to +200°F (94°C).
MAXIMUM VELOCITIES
Rear Linkage
System – 1000 fpm
Spot - 1500 fpm
Front Linkage
System – 3000 fpm
Spot – 3500 fpm
