Control & Backdraft Dampers

We provide support in choosing control and backdraft dampers and designing a layout that aligns with your facility's specific requirements.

Control & Backdraft Damper Manufacturers

United Enertech

Established in 1988 and based in Chattanooga, Tennessee, United Enertech designs and manufactures mechanical and architectural air movement products. Their offerings include louvers, dampers, roof curbs, and diffusers, serving commercial, industrial, and power generation markets.

Air Balance

Air Balance Inc. (ABI) manufactures a complete line of air control products, including static and dynamic fire dampers, ceiling radiation dampers, fire/smoke and smoke-only dampers, as well as standard and custom louvers. Their products meet rigorous standards set by UL, ASHRAE, AMCA, and IECC.

Louvers & Dampers

Since 1961, Louvers & Dampers has been producing a comprehensive range of high-performance, AMCA-certified products. Their offerings include louvers, penthouses, gravity vents, roof curbs, control dampers, and UL-rated life safety dampers, catering to diverse architectural and engineering specifications.

Mestek, Inc. is a family of over 45 specialty manufacturers providing heating, ventilating, and air conditioning products, as well as metal forming machinery and architectural products. Their diverse portfolio serves various facets of the HVAC equipment and building envelope industries.

Mestek, Inc. is a family of over 45 specialty manufacturers providing heating, ventilating, and air conditioning products, as well as metal forming machinery and architectural products. Their diverse portfolio serves various facets of the HVAC equipment and building envelope industries.

Featured Control & Backdraft Dampers

United Enertech - Opposed Blade/Parallel Blade, Extruded Aluminum 3-V Control Damper

United Enertech's 3-V Control Dampers are designed to regulate airflow in HVAC systems efficiently. Available in both opposed and parallel blade configurations, these dampers are constructed from extruded aluminum, ensuring durability and precise control.

Features

Durable Construction
Manufactured from extruded aluminum, these dampers offer robust performance and longevity.

Efficient Airflow Control
The 3-V blade design allows for precise modulation of airflow within HVAC systems.

High Velocity Capacity
Designed to handle air velocities up to 3,500 feet per minute, suitable for various commercial applications.

Pressure Resistance
Capable of withstanding pressures up to 4 inches water gauge, ensuring reliable operation under standard HVAC conditions.

Optional Actuation
Factory-installed actuators are available for automated control, enhancing system efficiency and responsiveness.

Specifications

Model Variants
– **CD-110:** Opposed blade configuration with a 3-V blade design.
– **CD-111:** Parallel blade configuration with a 3-V blade design.

Construction Materials
– **Frame:** Galvanized steel hat channel frame for structural integrity.
– **Blades:** Extruded aluminum blades for durability and precise airflow control.

Dimensions
– **Maximum Single Section Size:** Up to 48 inches in width by 60 inches in height.

Leakage Class
Class 1A leakage rating, ensuring minimal air loss and enhanced energy efficiency.

Velocity and Pressure Ratings
– **Maximum Velocity:** 3,500 feet per minute.
– **Maximum Pressure:** Up to 4 inches water gauge.

Warranty

Documents

United Enertech - Round Balancing Damper

The Model RD is a true round manual balancing damper designed for medium-to-high pressure applications (up to 3" w.g.), featuring galvanized steel construction and a factory-mounted heavy-duty locking hand quadrant for precise airflow regulation in duct systems.

Features

Heavy-Duty Control
Locking hand quadrant maintains set positions without slippage.

Performance Ratings
Handles up to 2,600 FPM velocity and 3″ w.g. static pressure.

Installation Flexibility
Compatible with manual, electronic, or pneumatic actuators (field-installed).

Specifications

Materials
Galvanized steel frame and blades.

Operation
Manual balancing via quadrant lever.

Applications
HVAC duct balancing in commercial/industrial systems.

Warranty

Documents

United Enertech - Backdraft/Barometric Extruded Aluminum Damper

Lightweight aluminum dampers that automatically prevent reverse airflow while allowing pressure relief in ventilation systems.

Features

Corrosion Resistant
6063-T5 aluminum construction.

Low Leakage
Neoprene gasket provides tight seal when closed.

Specifications

Operation
Opens at 0.03-0.20″ w.g. differential pressure.

Applications
Kitchen exhaust, laboratory fume hoods.

Warranty

Documents

air balance - Light Duty Aluminum Pressure Relief Backdraft Damper

A lightweight, corrosion-resistant damper designed for low-pressure HVAC systems requiring automatic pressure relief or backdraft prevention in non-critical applications.

Features

Material
6063-T5 extruded aluminum blades and frame with stainless steel hinges.

Operation
Gravity-operated blades open at 0.05-0.15″ w.g. differential pressure.

Sealing
Neoprene gasket provides Class II leakage rating when closed.

Specifications

Sizes
8″x8″ to 24″x24″ (larger sizes available upon request).

Pressure Range
0.05-1.0″ w.g. operating pressure.

Applications
Restaurant hood makeup air, laboratory exhaust systems.

Warranty

Documents

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