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Industrial noise pollution is a growing concern, especially in facilities that operate large mechanical equipment such as cooling towers. Cooling towers are essential for heat rejection in HVAC systems, power plants, manufacturing units, and process industries, but they also generate significant noise. To control this noise without affecting airflow, an Acoustic Louver for Cooling Tower is widely used as an effective and reliable solution.
At Envirotech Systems Limited, we design and manufacture advanced Acoustic Louvers that help industries achieve noise compliance while maintaining cooling efficiency.
Why Do Cooling Towers Need Noise Control?
Cooling towers produce noise from multiple sources, including:
- High-speed axial or centrifugal fans
- Air turbulence at intake and discharge points
- Falling water and splash noise
- Mechanical vibration from motors and gear assemblies
If this noise is not controlled, it can exceed permissible limits prescribed by environmental authorities. This often leads to complaints from nearby residential areas, regulatory penalties, and an uncomfortable working environment. Installing an acoustic louver is one of the most practical ways to reduce cooling tower noise.
What Is an Acoustic Louver?
An Acoustic Louver is a specially engineered airflow control device designed to reduce noise transmission while allowing free passage of air. Unlike standard louvers, acoustic louvers are fitted with sound-absorbing materials inside the blades, enabling them to attenuate noise without restricting ventilation.
When used in cooling towers, acoustic louvers are installed at air intake or exhaust openings to limit noise escape while ensuring uninterrupted cooling performance.
How Does an Acoustic Louver for Cooling Tower Work?
An acoustic louver works on the principle of sound absorption and controlled airflow. The louver blades are shaped to guide air smoothly through the opening while trapping and absorbing sound waves within the acoustic lining.
Key working aspects include:
- Sound waves enter the louver path
- Acoustic infill material absorbs noise energy
- Reduced noise exits the system
- Airflow continues with minimal pressure loss
This balance between noise reduction and ventilation makes acoustic louvers ideal for cooling tower applications.


Design Features of Acoustic Louvers
At Envirotech Systems Limited, acoustic louvers are designed using detailed engineering analysis to ensure optimal performance. Our products offer:
High Noise Attenuation: Effective reduction of broadband cooling tower noise.
- Low Pressure Drop: Engineered blade profiles to maintain cooling efficiency.
- Robust Construction: Manufactured using galvanized steel, aluminum, or stainless steel.
- Weather Resistance: Suitable for outdoor installation with protection against rain and dust.
- Custom-Built Designs: Tailored dimensions, materials, and performance based on site conditions.
Applications of Acoustic Louvers
Acoustic louvers are used across a wide range of industrial and commercial installations, such as:
- Cooling towers in industrial plants
- HVAC air intake and exhaust systems
- Power stations and substations
- Chiller plants and utility buildings
- Infrastructure projects near residential zones
For cooling towers, acoustic louvers are particularly effective in reducing fan and airflow noise without modifying the core system design.
Why Choose Envirotech Systems Limited?
Envirotech Systems Limited is a recognized leader in noise control and acoustic engineering solutions in India. With extensive experience in industrial noise management, we deliver acoustic louvers that are performance-driven, durable, and customized to project requirements. This ensures reliable noise reduction without compromising system efficiency.
An Acoustic Louver for Cooling Tower is an essential component for industries aiming to control noise while maintaining optimal airflow. By effectively reducing noise emissions and supporting regulatory compliance, acoustic louvers contribute to a safer and more sustainable industrial environment.
If you are looking for high-quality Acoustic Louvers, Envirotech Systems Limited offers engineered solutions that deliver performance, durability, and compliance. Our expertise ensures that your cooling tower operates efficiently while meeting noise control requirements.



