Product Description
NCC Acoustic Louvers combine excellent noise reduction with good ventilation, making them the ideal choice when a space needs to have smooth air circulation while minimising noise disturbance.
· Equipped with top-quality sound-absorbing chips, it is designed with a standard height to ensure smooth and stagnant airflow.
· With medium-sized blades, noise reduction can be maximised and pressure loss minimised while maintaining aesthetic appeal, while demonstrating excellent high-frequency performance.
· Perforated divider at the top and maximum acoustic absorption rain flap at the bottom to prevent rain and snow from entering.
Supplementary note: The bird protection device can be made of stainless steel or equipped with an insect screen.
· Standard door fittings include 316 stainless steel hinges, latches, and handles, all certified for quality.
Service Content
NCC's services include the following:
- Senior acoustic calculation
- Specialized ventilation pressure loss analysis
- Mechanical structure calculation form
- Advanced architectural installation drawings
- Installation procedure instruction
- Remote technical support
- Quality guarantee commitment for 10+ years
- Regular after-sales service follow-up
Our Advantages
NCC is a strong manufacturer in the field of high-performance acoustic louvres. With proven technology and stable architecture, and a wealth of experience from thousands of installations around the world, NCC is a reliable choice with solid innovation and a good reputation among users.
Advantages Introduction:
· It features structural stability, moth-proof and corrosion-resistant properties, excellent fire resistance, and acoustic filling materials.
· Available in galvanized steel, stainless steel, aluminum and other raw materials.
· Easy to install and high-performance.
· Winged and linear louvres are available in a wide range of standardised module sizes as well as customised to meet a wide range of acoustic performance requirements.
· A range of durable and aesthetic surface treatments.
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 NR |
300 |
5 |
6 |
11 |
12 |
12 |
15 |
12 |
10 |
| Model 2NR |
600 |
6 |
11 |
15 |
20 |
24 |
27 |
26 |
21 |
| Model NLP |
300 |
4 |
6 |
8 |
10 |
13 |
9 |
7 |
6 |
| Model 2NLP |
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 |
| SL-100 |
100 |
5 |
5 |
6 |
7 |
9 |
14 |
16 |
14 |
| SL-150 |
150 |
5 |
6 |
8 |
10 |
14 |
18 |
15 |
14 |
| SL-150L |
150 |
/ |
5 |
6 |
9 |
10 |
12 |
13 |
13 |
| SL-200 |
200 |
5 |
6 |
8 |
12 |
20 |
16 |
15 |
15 |
| SL-300L |
300 |
/ |
6 |
9 |
11 |
18 |
22 |
21 |
20 |
| SL-300 |
300 |
6 |
7 |
10 |
11 |
17 |
17 |
14 |
13 |
| SL-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.
Test Report
All Reports can meet the American Standars, the sound testing we did with Intertek
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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