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What is the function of a motorized volume damper?

Jun 20, 2024

Electric air volume control valve is a device that can adjust the air volume, generally used in the ventilation system duct of central air conditioner. Its basic structure is to place a valve plate in the center of the air duct, the valve plate can rotate around an intermediate axis parallel to the valve plate, and the rotation is controlled by an electric motor. Volume damper Frame is usually made by VCD Frame Roll Forming Machine.

 

VCD Frame Machine

 

There are two control modes for general electric air volume control valves, switch quantity and analog quantity. Electric air volume control valves have the advantages of small leakage, small friction torque, flexible operation, good blade rigidity, corrosion resistance, and complete varieties. They can be widely used in industrial and civil air conditioning and ventilation systems to achieve the purpose of controlling air volume.

 

The blades of electric air volume control valves are split-open and straight-open types, and are used as control valves in ventilation, air conditioning, and air purification systems. Through test measurements, the electric air volume control valve has good air tightness, its relative air leakage is about 5%, and its adjustment performance is good.

 

The constant flow function of the electric air volume control valve is achieved by the contraction and expansion/contraction of the silicon located in the middle of the balance. The principle is that the silicon with an adjustable cross-sectional area is built in. When the wind pressure and air volume change, the electric air volume control valve can automatically adjust the cross-sectional area to maintain the stability of the air volume within the wind pressure range of 50-200pa and high pressure within 150-600pa. No power control is required, no initial adjustment is required, the electric air volume control valve does not require maintenance, has a service life of 30 years, and works stably in an environment of -10-60 degrees of food intake.

 

hvac duct fire dampers

 

Notes

1. The installation and commissioning of the electric air volume control valve must be performed by professionals.

2. When wiring the electrical connections, be sure to cut off the power supply.

3. The voltage level must be checked and confirmed to be consistent and the wiring is correct before powering on. Incorrect wiring may damage the mechanism, other equipment, and even endanger safety.

 

The main function access includes:

1. Adjust the air volume

Precise control: The opening of the damper is precisely controlled by the electric actuator to adjust the air volume in the duct to meet the ventilation needs of a specific area.

Automatic adjustment: The air volume can be automatically adjusted according to the preset control signal to maintain constant indoor air quality and comfort.

2. Optimize energy use

Energy saving: By precisely controlling the air volume, unnecessary energy consumption is avoided and the energy efficiency of the system is improved.

Reducing operating costs: Optimizing air volume distribution, reducing the load on heating and cooling equipment, and thus reducing operating costs.

3. Maintaining indoor air quality

Uniform ventilation: Ensure uniform ventilation in each area, prevent insufficient or excessive ventilation in some areas, and ensure indoor air quality.

Pollution control: When necessary, the ventilation volume can be closed or reduced to prevent pollutants from spreading through the air duct.

4. System balance

Dynamic balance: In a multi-zone ventilation system, by adjusting the air volume in each area, the dynamic balance of the system is maintained to ensure the efficient operation of the entire system.

Adaptive adjustment: According to actual usage and demand changes, the air volume distribution can be flexibly adjusted to adapt to different usage scenarios.

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