Low-velocity automatic exhaust shutter for vertical mounting

20 in. Low-Velocity Exhaust Shutter

SKU:
WBB484669
Model/MPN:
502-STD-20
Our Price:
$68.94
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Product Specifications:
Country of Origin: US
Product Depth: 3"
Product Height: 23"
Product Type: Louvers & Vents
Product Width: 24"
Quantity Included: 1
Manufacturer Part Number: 502-STD-20
Width: 23 in
Depth: 2-1/4 in
Height: 23 in
Inside Width: 20 in
Inside Height: 20 in
Max Pressure In W.G.: 1 in
Max Velocity (per Minute): 2,000 ft/min
Rough Opening: 20-1/2 X 20-1/2 in
Brand: Air Conditioning Products
Flange Style: Rear Flange
Manufacturers Part Number: 502-STD-20
Material: Aluminum/Galvanized Steel
Mounting Position: Vertical
Type: Gravity Shutters
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Minimum Purchase:
2 units
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Product Specifications:
Country of Origin: US
Product Depth: 3"
Product Height: 23"
Product Type: Louvers & Vents
Product Width: 24"
Quantity Included: 1
Manufacturer Part Number: 502-STD-20
Width: 23 in
Depth: 2-1/4 in
Height: 23 in
Inside Width: 20 in
Inside Height: 20 in
Max Pressure In W.G.: 1 in
Max Velocity (per Minute): 2,000 ft/min
Rough Opening: 20-1/2 X 20-1/2 in
Brand: Air Conditioning Products
Flange Style: Rear Flange
Manufacturers Part Number: 502-STD-20
Material: Aluminum/Galvanized Steel
Mounting Position: Vertical
Type: Gravity Shutters
Minimum Purchase:
2 units

This low-velocity automatic exhaust shutter is for facilities using compatible exhaust fans. It supports one-way horizontal airflow while helping limit reverse airflow and exposure to outdoor elements when the fan is not operating.

Designed for vertical mounting with a rear flange, this shutter uses gravity-operated blades that open when airflow is present and close after the fan shuts down. It is intended for direct-drive or belt-driven exhaust fans and is not for use with vane axial or tube axial fans.

Key Features:

  • Automatic gravity blades: Blades open with airflow and close when the fan stops without manual adjustment.
  • One-way airflow control: Allows horizontal airflow in one direction while helping prevent reverse airflow.
  • Rear-flanged vertical design: Supports the specified vertical mounting configuration.
  • Exhaust fan compatibility: Fits direct-drive and belt-driven exhaust fan applications.

Choose this exhaust shutter for compatible direct-drive or belt-driven fan systems that need automatic airflow control during operation and closure when airflow stops.

Country of Origin: US
Product Depth: 3"
Product Height: 23"
Product Type: Louvers & Vents
Product Width: 24"
Quantity Included: 1
Manufacturer Part Number: 502-STD-20
Width: 23 in
Depth: 2-1/4 in
Height: 23 in
Inside Width: 20 in
Inside Height: 20 in
Max Pressure In W.G.: 1 in
Max Velocity (per Minute): 2,000 ft/min
Rough Opening: 20-1/2 X 20-1/2 in
Brand: Air Conditioning Products
Flange Style: Rear Flange
Manufacturers Part Number: 502-STD-20
Material: Aluminum/Galvanized Steel
Mounting Position: Vertical
Type: Gravity Shutters
Width: 3.00 in
Height: 23.00 in
Depth: 24.00 in
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