SSWDR-53
Stainless Steel Round
Backdraft Damper
APPLICATION
Model SSWDR-53 is a round backdraft damper
which may be mounted horizontally for airflow up or
down, or mounted vertically for horizontal airflow.
RATINGS
Pressure:
Velocity:
3 in. wg (.7 kPa)
2000 fpm (10.2 m/s)
180°F (82°C)
Temperature:
STANDARD CONSTRUCTION
Frame:
Blades:
Blade Seal:
20 ga. (1mm) 304 stainless steel
24 ga. (.7mm) 304 stainless steel
closed cell neoprene/EPDM/SBR
blend
SIZE LIMITATIONS (available in 1 in. [25mm]
increments)
Minimum Size:
Maximum Size:
4 in. (102mm)
24 in. (610mm)
OPTIONAL FEATURES
Extended Frame
Diameter is approximately 1/8 in. (3mm) undersize.
Extended Frame
Frame Dimensions
Damper Model
Length
SSWDR-53 Standard Frame
3.25 in.
(83mm)
SSWDR-53 Extended Frame
L
Length
“L”
Damper Diameter
3.25 in.
5 in. - 10.999 in.
(127mm - 279mm)
7.25 in.
(184mm)
(83mm)
Airflow
11 in. - 16.999 in.
(279mm - 432mm)
10.25 in.
(260mm)
Seal
Springs
17 in. - 24 in.
(432mm - 610mm)
13.25 in.
(336mm)
Frame
Copyright © 2008 Greenheck Fan Corporation
SSWDR-53 Rev. 2 October 2008
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