Product Description
·NCC Model:
Linear: NSL
Wing curved: NA/NP
·Size:
Thickness: 100mm, 150mm, 200mm, 300mm, 600mm
Size can be customized
·Material:
Galvanized sheet, aluminum sheet, stainless steel sheet, glass fiber wool, etc.
Materials can be customized
·Finish Treatment:
Polyester Powder Coating (PPC)
Any color from the RAL color chart can be chosen
·Other:
Provide stainless steel insect screen
Model: NSL
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
Model: NA, NP
Wing curved louver
NA 300 & NP 300: 300mm deep
NA 600 & NP 600: 600mm deep
Derivative Products
Acoustic Louver Door Acoustic Enclosure Acoustic Barrier/Screen
The application scenarios of NCC noise cancelling louvers include:
Air inlet of ventilation system
Air inlet of outdoor units such as cooling towers Machine room air inlet
HVAC noise reduction
Battery energy storage system
noise reduction
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
Acoustic louver door for industrial noise reduction
Acoustic enclousure for equipment noise reduction
Acoustic barrier/screen for cooling tower noise reduction
Our Advantages
·NCC is the first and currently the only manufacturer in China whose louver series products have passed AMCA (Air Moving and Conditioning (Control) Association) certification.
·Noise reduction effect, quality commitment, empirical test.
·Fire Certified performance data per ASTM-E84.
·Certified performance data per ASTM E90-09.
·Strong weather resistance, easy to clean and convenient for installation and maintenance.
·Select durable metal types combined with our special surface treatment process can guarantee maximum 20 years service life.
·Model, size, material, ventilation rate, noise reduction decibels, color, etc. can be customized. Our professional design team can provide you with satisfactory solutions.
Product Parameters
Linear Louver - Sound Transmission Loss (dB)
Octave Band
Centre
Frequency,Hz |
Louvre
Depth
(mm) |
Free area ratio(%) |
63 |
125 |
250 |
500 |
1k |
2k |
4k |
8k |
STC
CLASS |
| NSL-100 |
100 |
40-45% |
4 |
5 |
5 |
6 |
10 |
13 |
14 |
14 |
STC10 |
| NSL-150 |
150 |
30-35% |
5 |
6 |
8 |
10 |
14 |
18 |
15 |
14 |
STC14 |
| NSL-150L |
150 |
50% |
/ |
5 |
6 |
9 |
10 |
12 |
13 |
13 |
STC10 |
| NSL-200 |
200 |
28-30% |
5 |
6 |
8 |
12 |
20 |
16 |
15 |
15 |
STC17 |
| NSL-300L |
300 |
50% |
/ |
6 |
9 |
11 |
18 |
22 |
21 |
20 |
STC14 |
| NSL-300 |
300 |
45% |
6 |
7 |
10 |
11 |
17 |
17 |
14 |
13 |
STC18 |
| NSL-600 |
600 |
45% |
6 |
8 |
11 |
24 |
30 |
33 |
29 |
29 |
STC26 |
Wing curved louver - Sound Transmission Loss (dB)
Octave Band
Centre
Frequency,Hz |
Louvre
Depth
(mm) |
Free area ratio(%) |
63 |
125 |
250 |
500 |
1k |
2k |
4k |
8k |
STC
CLASS |
| Model NA300 |
300 |
42% |
5 |
6 |
11 |
12 |
12 |
14 |
12 |
10 |
STC14 |
| Model NA600 |
600 |
42% |
6 |
11 |
15 |
20 |
24 |
27 |
26 |
20 |
STC24 |
| Model NP300 |
300 |
50% |
4 |
6 |
8 |
10 |
13 |
9 |
7 |
6 |
STC11 |
| Model NP600 |
600 |
50% |
5 |
10 |
13 |
15 |
22 |
18 |
15 |
13 |
STC19 |
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.
· NCC is the first and currently the sole manufacturer in China that our louver series products have passed AMCA certification.
· 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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