Greenheck Fan SSWDR-53 Merkblatt

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: 

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)

OPTIONAL FEATURES

  

Extended Frame

3.25 in.

(83mm)

L

Frame

Extended Frame

Springs

Seal

Airflow

Copyright © 2008 Greenheck Fan Corporation 

SSWDR-53 Rev. 2 October 2008

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

Frame Dimensions

Damper Model

Length

SSWDR-53 Standard Frame

3.25 in. 

(83mm)

SSWDR-53 Extended Frame

Damper Diameter

Length 

“L”

5 in. - 10.999 in. 

(127mm - 279mm)

7.25 in. 

(184mm)

11 in. - 16.999 in.  

(279mm - 432mm)

10.25 in.

(260mm)

17 in. - 24 in.  

(432mm - 610mm)

13.25 in.

(336mm)