Powered Louvers | McMaster-Carr

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Opening Width

Voltage

Overall Width

Opening Height

Overall Height

Mounting Location

Return Type

Frame Material

For Damper Shaft Shape

Blade Material

Overall Depth

Blade Diameter

For Duct Shape

Torque

Direction of Operation

Clockwise

Counterclockwise

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

Not Compliant

Duct Size

For Duct Height

Airflow

Less than 1,000 ft³/min

1,000 ft³/min to 1,999 ft³/min

2,000 ft³/min to 2,999 ft³/min

3,000 ft³/min to 9,999 ft³/min

10,000 ft³/min or greater

Material

For Duct Width

For Maximum Damper Shaft Width

132 Products

Heating, Venting, and Air Conditioning

Movable-Blade Wall Louvers

These gravity-operated louvers remain open only when air flows, preventing backdrafts.

Roof Louvers

These louvers are gravity operated. The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts.

Airflow Dampers

Regulate airflow by adjusting dampers from fully open to fully closed.

Automatic Airflow Dampers

Save energy and increase comfort by heating and cooling only the areas that need it.

Proportional HVAC Damper Actuators

These actuators provide better control than incremental actuators because they are constantly being positioned in response to duct airflow requirements.

Incremental HVAC Damper Actuators

When duct airflow varies from the setpoint, these actuators open and close until the system requirement is restored.

Incremental and Proportional
HVAC Damper Actuators

Actuators automatically switch between incremental and proportional control to adjust dampers to regulate airflow.

Light Duty Direct-Drive Wall-Mount
Exhaust Fans with Louvers

These light duty fans are designed for use without duct.

Direct-Drive Wall-Mount Exhaust Fans with Louvers

These fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts.

Corrosion-Resistant Direct-Drive
Wall-Mount Exhaust Fans with Louvers

Rust won't be a problem with the durable plastic housing and louvers on these fans.

Belt-Drive Wall-Mount Exhaust Fans with Louvers

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Heating, Venting, and Air Conditioning

Movable-Blade Wall Louvers

Roof Louvers

Airflow Dampers

Automatic Airflow Dampers

Proportional HVAC Damper Actuators

Incremental HVAC Damper Actuators

Incremental and ProportionalHVAC Damper Actuators

Light Duty Direct-Drive Wall-MountExhaust Fans with Louvers

Direct-Drive Wall-Mount Exhaust Fans with Louvers

Corrosion-Resistant Direct-DriveWall-Mount Exhaust Fans with Louvers

Belt-Drive Wall-Mount Exhaust Fans with Louvers

Incremental and Proportional
HVAC Damper Actuators

Light Duty Direct-Drive Wall-Mount
Exhaust Fans with Louvers

Corrosion-Resistant Direct-Drive
Wall-Mount Exhaust Fans with Louvers