Greenheck Fan SSWDR-53 User Manual

APPLICATION

3.25 in.
(83mm)

L

Frame

Extended Frame

Springs

Seal

Airflow

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: 3 in. wg (.7 kPa)
Velocity: 2000 fpm (10.2 m/s)
Temperature: 180°F (82°C)

STANDARD CONSTRUCTION

Frame: 20 ga. (1mm) 304 stainless steel

Blades: 24 ga. (.7mm) 304 stainless steel
Blade Seal: closed cell neoprene/EPDM/SBR

blend

SIZE LIMITATIONS (available in 1 in. [25mm]

increments)

Minimum Size: 4 in. (102mm)
Maximum Size: 24 in. (610mm)

SSWDR-53

Stainless Steel Round

Backdraft Damper

OPTIONAL FEATURES

Extended Frame

Frame Dimensions

Damper Model Length

SSWDR-53 Standard Frame 3.25 in.

(83mm)

SSWDR-53 Extended Frame

Damper Diameter

5 in. - 10.999 in.

(127mm - 279mm)

11 in. - 16.999 in.

(279mm - 432mm)

17 in. - 24 in.

(432mm - 610mm)

Length

“L”

7.25 in.

(184mm)

10.25 in.
(260mm)

13.25 in.
(336mm)

Diameter is approximately 1/8 in. (3mm) undersize.

Copyright © 2008 Greenheck Fan Corporation

SSWDR-53 Rev. 2 October 2008