Control & Backdraft Dampers

Control & Backdraft Damper Manufacturers

United Enertech

Air Balance

Louvers & Dampers

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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