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- WD
WD
Model WD is a backdraft damper used in ventilation systems, allowing airflow in one direction and preventing airflow in the opposite direction.
- Rated for duct velocities up to 2,500 ft/min.
- Horizontal and vertical mounting options.
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| SKU | DAMPER WIDTH x DAMPER HEIGHT | MAX VELOCITY | PRESSURE DIFFERENTIAL MAX | MOUNTING POSITION | PRICE | ||
|---|---|---|---|---|---|---|---|
|
Model / Size:
WD-100
|
10 x 10 in | 2500 | 1 | Horizontal | $79.10 | ||
|
Model / Size:
WD-100
|
12 x 12 in | 2500 | 1 | Horizontal | $80.52 | ||
|
Model / Size:
WD-100
|
16 x 16 in | 2500 | 1 | Horizontal | $92.64 | ||
|
Model / Size:
WD-100
|
18 x 18 in | 2500 | 1 | Horizontal | $106.89 | ||
|
Model / Size:
WD-100
|
24 x 24 in | 2500 | 1 | Horizontal | $117.58 | ||
|
Model / Size:
WD-100
|
30 x 30 in | 2500 | 1 | Horizontal | $128.27 | ||
|
Model / Size:
WD-100
|
8 x 8 in | 2500 | 1 | Horizontal | $67.70 | ||
|
Model / Size:
WD-320
|
10 x 10 in | 2500 | 2 | Vertical | $104.75 | ||
|
Model / Size:
WD-320
|
12 x 12 in | 2500 | 2 | Vertical | $104.75 | ||
|
Model / Size:
WD-320
|
14 x 14 in | 2500 | 2 | Vertical | $123.99 | ||
|
Model / Size:
WD-320
|
16 x 16 in | 2500 | 2 | Vertical | $117.58 | ||
|
Model / Size:
WD-320
|
18 x 18 in | 2500 | 2 | Vertical | $123.99 | ||
|
Model / Size:
WD-320
|
20 x 20 in | 2500 | 2 | Vertical | $128.98 | ||
|
Model / Size:
WD-320
|
22 x 22 in | 2500 | 2 | Vertical | $136.11 | ||
|
Model / Size:
WD-320
|
26 x 26 in | 2500 | 2 | Vertical | $163.90 |
Backdraft damper, horizontal mount, Model WD-100, 10 In Sq, No Flange, Performance up to 2,500 ft/min
$79.10
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, horizontal mount, Model WD-100, 12 In Sq, No Flange, Performance up to 2,500 ft/min
$80.52
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, horizontal mount, Model WD-100, 16 In Sq, No Flange, Performance up to 2,500 ft/min
$92.64
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, horizontal mount, Model WD-100, 18 In Sq, No Flange, Performance up to 2,500 ft/min
$106.89
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, horizontal mount, Model WD-100, 24 In Sq, No Flange
$117.58
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, horizontal mount, Model WD-100, 30 In Sq, No Flange
$128.27
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, horizontal mount, Model WD-100, 8 In Sq, No Flange, Performance up to 2,500 ft/min
$67.70
The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 10 In Sq, Flange on Discharge, Performance up to 2,500 ft/min
$104.75
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 12 In Sq, Flange on Discharge, Performance up to 2,500 ft/min
$104.75
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 14 In Sq, Flange on Discharge, Performance up to 2,500 ft/min
$123.99
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 16 In Sq, Flange on Discharge, Performance up to 2,500 ft/min
$117.58
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 18 In Sq, Flange on Discharge, Performance up to 2,500 ft/min
$123.99
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 20 In Sq, Flange on Discharge
$128.98
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 22 In Sq, Flange on Discharge
$136.11
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Backdraft damper, vertical mount, Model WD-320, 26 In Sq, Flange on Discharge
$163.90
The WD-320 series dampers are designed to prevent reverse airflow in horizontal exhaust applications. The WD-320 features a pressure sensitive blade design that opens and remains open under low velocity conditions. The dampers are opened by air pressure differential and closed by gravity. Galvanized steel frame with flange on the discharge side.
- Width and height furnished approximately 0.125 in. under size
Filter Products
Refers to the orientation in which a product can be mounted.
The "ACTUAL" damper width and height. Dampers are undersized to allow them to be mounted into the duct work/wall opening.
Describes the maximum static pressure that a given damper can withstand and still be fully operational in an HVAC system.
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