European Certified Acoustic Louvers: The Key to Tranquilizing Cool Tower Entries and Generator Sound Levels

Product Description

Product Description

NCC is a leading manufacturer of noise cancelling louvers worldwide, with sturdy, durable, and high-performance products that have been applied multiple times worldwide. 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                                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         
                          
Dimension & Appearance

 

Our Advantages

NCC louvers can be made into sound absorption louvers with a single or double leaf structure with a minimum structural height of 850mm. NCC can provide louvers and doors of various sizes, just to fit the size of the installation hole.

(The standard height of a single leaf door is 1250mm × 3000mm, and the standard height of a double leaf door is 2500mm × 3000mm.)

All doors are equipped with joint locks, latches, and handles

Soundproof doors can be provided with bird guards and insect nets upon request

The door can be provided with polyester powder coating

Can be made of galvanized steel, stainless steel, or aluminum

 

The main characteristics and advantages of NCC acoustic louvers are:
Equipped with weather resistant sealing plates to prevent the infiltration of rain and snow
The modular design can make the louvers suitable for use with any size of "vent"

It can serve as an independent barrier around equipment or be integrated with building walls

The blades of the silencing louver are arranged horizontally, reflecting aesthetics and enhancing acoustic performance

It can be equipped with stainless steel or galvanized bird nets, as well as insect nets

Meet anti-theft requirements and standards 

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.

 

Testing 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.