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Models
UVC30 and UVC31—
Galvanized Steel Damper
These
dampers are used as an alternate selection to the UVC26 and UVC27 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
UVC30
Parallel Blade
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Model
UVC31
Opposed Blade
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Options
for the UVC30 and UVC31
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Bearings:
stainless steel sleeve, Teflon® sleeve, OIB, press-fit ball
bearings
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Seals:
EPT blade, metallic compression jamb
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Stainless
steel linkage and axles
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Mounting
holes
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Standard
Specifications for the UVC30 and UVC31
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Max.
Face Velocity
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3000
fpm |
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Max.
Differential
Pressure
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4
in. wg |
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Max.
Temperature
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250°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-UVC30)
6"W x 12"H (Opposed blade-UVC31) |
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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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18
gauge galvanized, 9 1/2" maximum width |
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Axles
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1/2"
diameter plated steel full length thru 33" wide
3/4" diameter plated steel full length, above 33" wide |
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Bearings
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Heavy
duty self-lubricating nylon |
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Stops
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Galvanized
steel angle |
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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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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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