Product Description
Acoustic louvers, precision-engineered by NCC-an internationally leading manufacturer specializing in advanced noise control solutions-embody the pinnacle of innovative design, robust performance, and adaptive functionality. These louvers are meticulously crafted to address the most challenging airborne noise scenarios in mechanical ventilation systems, delivering unparalleled efficiency across industrial, commercial, and infrastructure applications worldwide.
Structure
Wing curved louver Model
NA 300& Model NP300: 300mm deep
NA600 & Model NP600: 600mm deep
NA/NP Model
Linear louver
NSL-100: 100mm deep
NSL-150: 150mm deep
NSL-150L: 150mm deep
NSL-200: 200mm deep
NSL-300L: 300mm deep
NSL-300: 300mm deep
NSL-600: 600mm deep
NSL Model
Galvanized Steel Wing Curved Acoustic Louvers Aluminum Linear Acoustic Louvers
Application
Air inlet of ventilation system
Air inlet of outdoor units such as cooling towers
Machine room air inlet
Data center vents
Water pump room air inlet
Transformer/substation
sound insulation room
heat sink boiler room
Ventilation louvers for construction machinery radiators
Ventilation openings on soundproof enclosures
Wind turbine vent
Our Advantages
Flexible Structural Adaptation:
Offers single/double-blade acoustic louver structures and full-size customization to meet different installation hole dimensions and spatial requirements.
Multi-Material Environmental Adaptation:
Available in galvanized steel, stainless steel, and aluminum, paired with polyester powder coating, suitable for durability and aesthetics in various scenarios such as indoor environments, coastal corrosive areas, and high-rise buildings.
Comprehensive Functional Configuration:
Comes standard with deadbolts, latch locks, and handles, supporting the addition of bird-proof/insect-proof nets to balance safety protection and clean environment needs.
Customizable Noise Reduction Performance:
Double-blade structure enhances noise reduction effectiveness, suitable for high-noise scenarios, with optional sound-absorbing materials to meet relevant sound insulation standards.
One-Stop Delivery Advantage:
Covers the production of all types of louvers and soundproof doors, providing CAD detailed design and customization services to resolve multi-supplier coordination and installation adaptation issues.
Product Parameters
Wing curved louver - Sound Transmission Loss (dB)
Octave Band
Centre
Frequency,Hz |
Louvre
Depth
(mm) |
63 |
125 |
250 |
500 |
1k |
2k |
4k |
8k |
| Model NA300 |
300 |
5 |
6 |
11 |
12 |
12 |
14 |
12 |
10 |
| Model NA600 |
600 |
6 |
11 |
15 |
20 |
24 |
27 |
26 |
20 |
| Model NP300 |
300 |
4 |
6 |
8 |
10 |
13 |
9 |
7 |
6 |
| Model NP600 |
600 |
5 |
10 |
13 |
15 |
22 |
18 |
15 |
13 |
Linear Louver - Sound Transmission Loss (dB)
Octave Band
Centre
Frequency,Hz |
Louvre
Depth
(mm) |
63 |
125 |
250 |
500 |
1k |
2k |
4k |
8k |
| NSL-100 |
100 |
5 |
5 |
6 |
7 |
9 |
14 |
16 |
14 |
| NSL-150 |
150 |
5 |
6 |
8 |
10 |
14 |
18 |
15 |
14 |
| NSL-150L |
150 |
/ |
5 |
6 |
9 |
10 |
12 |
13 |
13 |
| NSL-200 |
200 |
5 |
6 |
8 |
12 |
20 |
16 |
15 |
15 |
| NSL-300L |
300 |
/ |
6 |
9 |
11 |
18 |
22 |
21 |
20 |
| NSL-300 |
300 |
6 |
7 |
10 |
11 |
17 |
17 |
14 |
13 |
| NSL-600 |
600 |
6 |
8 |
11 |
24 |
30 |
33 |
29 |
29 |
Laboratory testing
NCC Acoustic Laboratory - A Laboratory Professionaly Committed to Serving Customers
We exert every ounce of our strength to construct a high-end, avant-garde laboratory endowed with autonomous control capabilities. For all bespoke products, be it in terms of specifications, dimensions, or acoustic requisites, prior to entering the mass production phase, we shall enforce rigorous and meticulous pre-production sample testing procedures. Only upon thorough confirmation that all indicators are up to par will we invest a considerable amount of human and material resources to embark on mass production endeavors, thereby effectively guaranteeing that each and every batch of large-scale goods delivered to clients possesses outstanding quality.
The fabricated product samples are positioned within the spacious window of the laboratory and securely fastened through professional sealing measures. Through precise adjustment of the relevant parameters and concurrent utilization of advanced and precise apparatuses for comprehensive and profound testing, it is ultimately ensured that the products can fully comply with the exacting requirements of customers.
As depicted in the illustration, the external noise of the laboratory attains 80.1 dB, while through random measurement, the internal acoustic laboratory drops to 36.4 dB or even lower. The elevated standard of sound insulation not only ensures the accuracy of the experimentation but also furnishes a robust guarantee for the test outcomes.
Testing Report
All reports can meet the American standards. We conducted a sound test with Intertek and passed the American AMCA certification, reaching international high-precision and advanced standards.
Packaging & Shipping
Company Profile
NCC is a supplier of noise control services and acoustic products. We have developed multiple sets of noise control solutions in various fields such as aerospace, commercial buildings, medical audiometry, industrial engineering, power equipment, subways and tunnels, performing arts buildings, and noise reduction laboratories. We provide customers with electric audiometry rooms, semi anechoic rooms, silent rooms, shielded rooms, listening rooms, fireproof soundproof doors, ventilation silencers, exhaust silencers, and noise reduction louvers Comprehensive professional services and technical support for the design, manufacturing, and installation of cooling tower noise control.
Over the years, NCC has developed into a turnkey supplier of noise control, providing customers with one-stop solutions from concept to completion, including solution consulting, synchronous research and development, construction drawing design, structural design, fluid calculation, air conditioning and electrical system engineering, product manufacturing, installation and commissioning, and testing and acceptance services. With over 70 years of experience in noise control and acoustic engineering, we will provide you with solutions that meet your needs and budget. We look forward to working with you.
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