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Models
UVC26 and UVC27—
Galvanized Steel Damper
These
dampers are designed for "in duct" mounting. The airfoil roll-formed
blades and roll-formed frame are capable of withstanding differential
pressures of 6 in. wg and velocities up to 4,000 fpm at its maximum panel
width. For higher pressures and velocities, refer to limitation table.
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Model
UVC26
Parallel Blade
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Model
UVC27
Opposed Blade
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Options
for the UVC26 and UVC27
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Bearings:
OIB, stainless steel
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Actuators:
manual, electric and pneumatic actuators mounted on either side,
and inside or outside the airstream
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Factory-assembled
jackshafting up to 48 sq ft
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On-blade
drive brackets for internal operation
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Mounting
holes
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Standard
Specifications for the UVC26 and UVC27
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Max.
Face Velocity
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4000
fpm |
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Max.
Differential
Pressure
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6
in. wg |
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Max.
Temperature
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150°F
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Dimensions
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"A"
and "B" dimensions are opening sizes. Dampers will be fabricated
1/4" undersize. |
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Min.
Panel Size
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8"W
x 8"H (Parallel)
8"W x 12"H (Opposed) |
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Max.
Panel Size
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48"W
x 60"H |
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Max.
Size
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Single
Section: 48"W x 60"H
Multiple Section: 96"W x 60"H
(2W x 1W) or 48"W x 120"H
(1W x 2H). |
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Max.
Configuration
Per Actuator
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Two
sections high or two sections wide |
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Frame
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5 1/2"
X 7/8" X 16 gauge galvanized steel hat channel
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Blades
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Double-skin
galvanized steel construction with single-lock seam, airfoil shaped
stronger than 14 gauge equivalent, 6 1/4" wide (including edge
seals) by a minimum of 1/2" thick at the center. Depending upon
the damper height, a variable-width blade may be required which will
extend to a maximum of 3 1/4" from either the front or back of
the damper. If the exact dimension of this variable blade is critical,
contact McGill AirFlow. |
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Seals
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Dual
durometer vinyl (high-impact PVC) on blade edges and metallic compression
type at jambs |
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Axles
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1/2"
square plated steel stub, mechanically locked to the blades |
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Bearings
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Non-metallic
celcon |
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Stops
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Galvanized
steel angle |
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Linkage
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In-jamb
type, plated steel angle and crank plates, and stainless steel pivots |
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Finish
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Mill |
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Actuator
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6"
extended shaft. Dampers more than one panel wide or high, and operated
with one actuator, must be jackshafted. |
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