The model 556 is a counter balanced rear flanged vertical mount automatic exhaust double shutter. It is designed to allow horizontal airflow in one direction and to prevent reverse airflow while providing protection from environmental elements when the airflow stops. The blades open with airflow and minimize the wear load on the fan motor and close by gravity when the fan shuts down.
- Counter balanced blades allow the shutter to be mounted vertically to 45 degrees and has flanged ends for added weather protection
- Ideal for direct-drive or belt-driven exhaust fans
- Do not use with vane axial or tube axial fans
- Made in the usa
Weights & dimensions
- Depth 3 in
- Max pressure in w.G. 1 in
- Rough opening 42-1/2 x 42-1/2 in
- Width 45 in
- Inside height 42 in
- Height 45 in
- Max velocity (per minute) 2500 ft/min
- Inside width 42 in
Product details
- Flange style Rear flange
- Mounting position Vertical
- Type Gravity shutters
- Brand Air conditioning products
- Material Aluminum/galvanized steel
- Finish Mill finish
- Manufacturers part number 556-std-42
