Our extruded adjustable louvers and combination louver-damper products are capable of an enhanced level of air flow control through their flexibility and adjustable design. This product line is perfect for systems requiring only periodic operation or systems that require the ability to completely control airflow.
We make a variety of adjustable louvers based on our standard louver offering, with a number of blade styles and depths. In addition, we also make a line of combination louver/dampers that bring together a fixed louver with either a control or backdraft damper in a single frame, eliminating the need for the greater clearance requirements of a common sleeve arrangement.
Adjustable louvers can be controlled with a variety of operators: manually, crank, chain, electrical or pnuematic, all capable of completely shutting air out when necessary and also allowing maximum flow with minimum outside element and water penetration. Utilizing auxiliary switches on the operators allows for interlinking of the operation of our adjustable and combination louvers with the building's fan system and a greater degree of control: when the system is off, the adjustable louver (or control damper in the combination models) is able to remain in the closed position for a tight seal; when the system turns on, the louver or damper is able to be opened in sync for maximum on-demand ventilation. For our combination louver-dampers with backdraft dampers, the system flow and pressure dictates the operation of the backdraft damper in a similar synced manner without the need for active control.
Please click on the orange triangles below for further information regarding each model including product submittals.
A-DBE-04
Adjustable Drainable-Blade Louver |
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Adjustable Drainable |
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High performance adjustable variation of our patented drainable blade configuration in 4'' thickness. The adjustable feature is useful on systems requiring periodic operation: in the open position the louver functions conventionally,... Read More »
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| A-DBE-06 |
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Adjustable Drainable |
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High performance adjustable variation of our patented drainable blade configuration in 6'' thickness. The adjustable feature is useful on systems requiring periodic operation: in the open position the louver functions conventionally,... Read More »
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| A-DWE-04 |
| Blade Style: |
Adjustable Drainable |
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High performance adjustable variation of our patented drainable blade configuration in 4'' thickness. The adjustable feature is useful on systems requiring periodic operation: in the open position the louver functions conventionally,... Read More »
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| A-DWE-06 |
| Blade Style: |
Adjustable Drainable |
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High performance adjustable variation of our patented drainable blade configuration in 6'' thickness. The adjustable feature is useful on systems requiring periodic operation: in the open position the louver functions conventionally,... Read More »
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| A-LEB-04 |
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Model A-LEB-04 is the 4" deep adjustable variant of our classic J style step-bladed louver. The blade design features a rear water baffle and provides good protection against general weather conditions, with low pressure drop... Read More »
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| A-LEB-06 |
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Model A-LEB-06 is the 6" deep adjustable variant of our classic J style step-bladed louver. The blade design features a rear water baffle and provides good protection against general weather conditions, with low pressure drop... Read More »
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| A-LEC-04 |
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The adjustable variant of our classic straight bladed louver, Model A-LEC-04 is a louver that combines form and function, adding both aesthetic appeal and reliable performance to any building. The adjustable feature is useful on... Read More »
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| A-LEC-06 |
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The adjustable variant of our classic straight bladed louver, Model A-LEC-06 is a louver that combines form and function, adding both aesthetic appeal and reliable performance to any building. The adjustable feature is useful on... Read More »
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| A-LEG-04 |
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The adjustable design variant of our step blade configuration louver, the A-LEG-04 utilizes a shallow 20-degree blade angle with a rear step designed to maximize free area and minimize pressure drop when in the open position while... Read More »
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AEN-04
Louver with Integral Backdraft Damper |
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Combination Integral--Intake |
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Combination intake louver with integral backdraft damper in an economical 4-inch deep frame, the AEN-04 is an efficient solution designed to protect openings from weather penetration and supply on-demand ventilation in response to fan operation. AEN-04 does the job of both an intake louver and backdraft damper in one.
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AEO-04
Louver with Integral Backdraft Damper |
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Combination Integral--Exhaust |
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Combination exhaust louver with integral backdraft damper in an economical 4-inch deep frame, the AEN-04 is an efficient solution designed to protect openings from weather penetration and supply on-demand exhaust ventilation in response... Read More »
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| C-DWE-44 |
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Fixed/Adjustable |
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A versatile combination louver-damper ideal for high-volume systems such as warehouses and factories, the C-DWE-44 allows for excellent water penetration resistance via its drainable louver blades as well as complete control of... Read More »
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C-DWE-46
Combination Drainable Louver and Control Damper |
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Fixed/Adjustable |
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A versatile combination louver-damper ideal for high-volume systems such as warehouses and factories, the C-DWE-46 allows for excellent water penetration resistance via its drainable louver blades as well as complete control of... Read More »
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| C-DDE-46 |
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Fixed/Adjustable |
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A versatile combination louver-damper ideal for high-volume systems such as warehouses and factories, the C-DDE-46 allows for excellent water penetration resistance via its drainable louver blades as well as complete control of... Read More »
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| C-DWE-AF (46) |
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Fixed/Adjustable Airfoil |
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Outstanding for use in warehouses and other large spaces that require a high degree of weather-protected ventilation, C-DWE-AF (46) is an extruded aluminum combination louver and control damper that incorporates front stationary... Read More »
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| C-LEC-46 |
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Fixed/Adjustable |
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A versatile combination louver-damper ideal for high-volume systems such as warehouses and factories, the C-LEC-46 allows for excellent ventilation and pressure drop performance via its straight louver blade configuration as well as... Read More »
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CDHL-26e
Combination Louver with Exhaust Backdraft Damper |
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Fixed Drainable/ Backdraft Damper |
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The CDHL-26e is a combination drainable blade louver and backdraft damper in a single frame designed for exhaust applications. The stationary drainable blade louver works in concert with the gravity damper to ensure... Read More »
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CDHL-26i
Combination Louver with Intake Backdraft Damper |
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Fixed Drainable/ Backdraft Damper |
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The CDHL-26i is a combination drainable blade louver and backdraft damper in a single frame designed for intake applications. The stationary drainable blade louver works in concert with the gravity damper to ensure maximum resistance... Read More »
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| General Louver Operation & Maintenance |
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