What is an acoustic louver?
Acoustic louver is a ventilation product designed to allow airflow while reducing noise transmission.
What are acoustic louvers used for?
Acoustic Louver use to control noise from HVAC systems, machinery, and ventilation shafts while maintaining air movement.
What materials are used in acoustic louvers?
Galvanized steel, aluminum, stainless steel, and acoustic insulation materials like mineral wool.
Where are acoustic louvers typically installed?
Power plants, data centers, commercial buildings, generator enclosures, and ventilation systems.
How do acoustic louvers reduce noise?
By using specially angled blades filled with sound-absorbing material to disrupt and absorb sound waves.
Are acoustic louvers suitable for outdoor use?
Yes, they are weather-resistant and designed to withstand environmental conditions.
What is the difference between acoustic and ventilation louvers?
Acoustic louvers reduce noise in addition to allowing airflow, unlike standard ventilation louvers.
Can acoustic louvers be installed vertically?
Yes, depending on the application and airflow direction.
Are acoustic louvers customizable?
Yes, acoustic louver can be tailored in size, material, color, and blade configuration.
What are the blade types in acoustic louvers?
Typically straight or chevron-shaped, often filled with acoustic media.
Do louvers include weather baffles?
Some models include rain-resistant blades or weather hoods.
What insulation is used inside blades?
High-density mineral wool or fiberglass.
Can acoustic louvers be made from stainless steel?
Yes, especially for corrosive or marine environments.
What thicknesses are available?
Common depths include 150mm, 300mm, and 450mm.
What colors can be chosen?
Powder-coated finishes are available in a wide range of RAL colors.
Are the blades fixed or adjustable?
Most acoustic louvers have fixed blades for acoustic performance.
What is STC rating?
It measures sound transmission loss; higher STC means better sound insulation.
What insertion loss values are typical?
Around 6–20 dB depending on frequency and depth.
What’s the airflow pressure drop?
Typically 10–50 Pa depending on design and velocity.
Are acoustic louvers fire-rated?
Yes, Fire-rated versions are available upon request.
What airflow velocities are supported?
Typically 2–5 m/s without excessive pressure loss.
Can louvers reduce low-frequency noise?
Yes, with deeper designs and proper acoustic infill.
How do you calculate the required louver size?
Based on airflow (CFM or m³/h) and allowable velocity and pressure drop.
What’s the maximum size for a single louver unit?
Commonly up to 2.4m x 2.4m; larger openings require multiple sections.
How are acoustic louvers mounted?
Typically bolted or framed into openings with sealant or gasketing.
What tools are needed for installation?
Standard hand tools, anchors, and sealants.
Are installation instructions provided?
Yes, with every product or available on request.
Can acoustic louvers be installed indoors?
Yes, in equipment rooms and industrial settings.
How are they sealed for weatherproofing?
Using gaskets, caulking, and proper flanges.
Are they used in hospitals?
Yes, for silent air exhausts and HVAC noise control.
What role do they play in data centers?
Silent cooling and ventilation while maintaining acoustic performance.
Are acoustic louvers used in recording studios?
Yes, for silent ventilation.
Can they be used in residential buildings?
Yes, especially in high-noise urban areas.
Are they used in airports?
Yes, to reduce noise from air handling systems.
Can acoustic louvers be used in stadiums?
Yes, for crowd noise management and ventilation.
Where are they used in power plants?
In cooling towers, generator enclosures, and turbine rooms.
Are they used in metro or rail stations?
Yes, in tunnels and mechanical plant rooms of metro or rail stations.
Can they be used in hotels?
Yes, especially near chiller plants and generator rooms.
Are they suitable for tunnels?
Yes, to ventilate and attenuate fan noise.
Can acoustic louvers block rain?
Yes, specially designed blades help shed water and prevent ingress.
Are acoustic louvers tested for water penetration?
Yes, especially if designed for outdoor use.
Can louvers be hurricane-rated?
Yes, upon request for areas prone to high wind loads.
Do they reduce cross-talk between rooms?
Yes, when installed as return air silencers with acoustic infill.
Can they be used in corrosive environments?
Yes, stainless steel or coated aluminum options are suitable.
Are there acoustic louver doors?
Yes, door panels can be fitted with louver inserts for sound and ventilation.
What’s the effect of louver depth on sound attenuation?
Greater depth generally means better attenuation, especially for low frequencies.
Are acoustic louvers energy-efficient?
Yes, when designed to minimize pressure drop.
Do acoustic louvers vibrate under high flow?
No, if properly braced and installed.
Can louver shape be customized (e.g., round, curved)?
Yes, with special fabrication techniques.
Are acoustic louvers available with dampers?
Yes, backdraft or volume control dampers can be integrated.
Can louvers include bird or insect screens?
Yes, mesh screens can be added.
Do you offer modular louver systems?
Yes, large installations are shipped in panels for on-site assembly.
Can acoustic louvers have removable panels?
Yes, for access or cleaning.
Are there insulated vs. non-insulated versions?
Acoustic louvers are typically insulated for sound absorption, but unfilled versions exist for non-noise applications.
Can acoustic louvers be laser-cut with logos?
Yes, as part of architectural customization.
Are integrated silencers available in louvers?
Yes, Some high-performance units combine both in one assembly.
What is the lead time for delivery?
Usually 2–3 weeks, depending on customization.
Can Envirotech Systems Limited handle international shipping?
Yes, with export packaging and documentation.
Are installation manuals provided?
Yes, in print or digital formats.
Can you deliver louvers directly to project sites?
Yes, with prior logistics coordination.
What packaging methods are used?
Crated, bubble-wrapped, or shrink-wrapped depending on destination.
Is on-site support available?
Yes, for large or complex installations.
Why choose acoustic louvers over silencers?
Louvers combine airflow and weather protection, while silencers require ducting.
What makes Envirotech acoustic louvers unique?
Precision-engineered for world-class & high performance, durability, and customization.
Do you offer site visits before quoting?
Yes, depending on project size and location.
How do I get a quote?
Through your inquiry form, email - sales@envirotechltd.com, or direct contact with our sales team - +919311011131
What industries do you serve?
HVAC Systems, Industrial Facilities, Commercial Buildings, Residential Complexes, Acoustic Enclosures, Parking Garages, Infrastructure Projects, Airports & Transport Hubs, Data Centers etc.
How to Change my Photo from Admin Dashboard?
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Where are Envirotech louvers manufactured?
Envirotech Systems Limited is a leading trusted acoustic louver manufacturer in India with global supply.
What support is available after installation?
Performance monitoring, maintenance guidance, and replacement parts.
How to Change my Photo from Admin Dashboard?
Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts. Separated they live in Bookmarksgrove right at the coast
How to Change my Photo from Admin Dashboard?
Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts. Separated they live in Bookmarksgrove right at the coast
