Backdraft Damper BDR2 Ruskin

The BDR2 was developed in response to industry requirements for a round backdraft damper with low leakage and easy to install in round spiral
ductwork. The specially designed blades with closing spring insure a tight seal to minimize back flow through the damper. Ruskin's exclusive
blade hinge design has no frame penetrations to allow air leakage out of the duct. Integral rolled blade stop insures correct installation of blade
seal and positioning of blades in the damper.

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Symbol Ruskin
Profile: Manufacturer
Headquarters: US
Business area: Global
Establishment date: 1958
Employees: 1000+
Assortment: Dampers , louvers, air measuring systems, ERVs
BDR2 - 1
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Product descritipion

Backdraft Damper BDR2 Ruskin

FRAME
20 gage (1.0) galvanized steel up to 24" (610) diameter, 11"
(279) long.
BLADES
.016 thick (0.40) aluminum.
BLADE STOP AND AXLE KEEPER
20 gage (1.0) galvanized.
BLADE SEAL
Vinyl foam.
AXLES
3/16" dia. (4.8) plated steel.
FINISH
Mill galvanized frame, mill finished blades.
DAMPER SIZES
(D Diameter) 6", 7", 8", 9", 10", 12", 14", 16", 18", 20", 22", 24"
(152, 178, 203, 229, 254, 304, 356, 406, 457, 508, 559, 610).
MAXIMUM VELOCITY
2000 FPM.
MAXIMUM SYSTEM PRESSURE
2" w.g. (0.49 KPA)
TEMPERATURE LIMITS
-40°F (-40°C) to 180°F (80°C).

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