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Models
UVC20 and UVC21—
Galvanized Steel Damper
These
dampers are used as an alternate selection to Models UVC1 and UVC2 when
heavier gauges, larger axles or different alloys are required. Unlike
roll-formed products, blade widths can vary, maximizing free area and
lowering pressure drop.
These
models allow flexibility to change frame styles and depths for different
mounting applications. Corrosive or spark-resistant applications are common
uses for these models.
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Model
UVC20
Parallel Blade
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Model
UVC21
Opposed Blade
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Options
for the UVC20 and UVC21
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Stainless
steel frame and blades
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Aluminum
frame and blades
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Stainless
steel axles and linkage
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Bearings:
OIB, stainless steel, Teflon® sleeve, press fit ball
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Seals:
vinyl blade, metallic compression jamb
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Mounting
holes
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Standard
Specifications for the UVC20 and UVC21
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Max.
Face Velocity
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3000
fpm |
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Max.
Differential
Pressure
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2
in. wg |
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Max.
Temperature
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200°F;
without seals
150°F; with seals |
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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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6"W
x 6"H (Parallel blade-UVC20)
6"W x 12"H (Opposed blade-UVC21) |
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Max.
Panel Size
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48"W
x 96"H (without seals)
48"W x 72"H (with seals) |
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Frame
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5 1/2"
X 7/8" X 16 gauge galvanized steel hat channel. Dampers with
a "B" dimension of 13" or less will have a flat 10
gauge galvanized steel plate at head and sill
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Blades
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16
gauge galvanized, 9 1/2" maximum width; 6" minimum width |
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Axles
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1/2"
diameter plated steel stub |
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Bearings
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Heavy
duty self-lubricating nylon |
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Linkage
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Plated
steel brackets, brass barrels, and 5/16" diameter plated steel
rod. Dampers with seals have double linkage on panels over 36"
wide. |
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Stops
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Galvanized
steel angle |
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Finish
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Mill |
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Actuator
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An
extendable shaft is standard |
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Teflon®
is a registered trademark of DuPont™ Teflon® Inquiry Center.
DuPont™ is a trademark of e.i. du Pont de Nemours and Company, Wilmington,
Delaware.
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