Counterbalanced Backdraft Damper CBD2 Ruskin
STANDARD CONSTRUCTION
(Spot velocities up to 1500 fpm)
FRAME
6063T5 extruded aluminum .090" (2.3) wall thickness. Mitered corners.
BLADES
.025" (.6) formed aluminum with ex-truded vinyl edge seals.
BEARINGS
Synthetic.
LINKAGE
1/8 " x 1/2 " (3.2 x 13) aluminum tiebars concealed in frame.
COUNTERBALANCE
Zinc plated steel weights on blades. Adjustable for final "on the job" setting.
FINISH
Mill.
MINIMUM SIZE
6" w x 7"h (152 x 178)
MAXIMUM SIZE
Single section – 40"w x 48"h (1016 x 1219).
Assembly of sections – size unlimited.
TEMPERATURE LIMITS
-40˚F (-40˚C) +200˚F (93˚C).
