Air Inlet of Ventilation System and Metal Louver Door

• After-sales Service: Yes
• Warranty: 10 Years
• Material: Aluminum Alloy
• Model NO.: NCC-01
• Screen Netting Material: Steel
• Veneer Wood: Color Can Be Choosed
• Position: Acording to Your Need
• Security Rating: Soundproof Doors
• Surface Finishing: Finished
• Function: Acoustic Door
• for: Fresh Air Intakes for Ventilation Systems
• Transport Package: Wooden Packing
• Specification: Size can be ordered according to the situation
• Trademark: NCC
• Origin: China
• HS Code: 73083000
• Production Capacity: 100/Month

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

 

NCC louvers can be made into sound-absorbing louvers with single or double leaf structures, with a minimum structural height of 850mm. The standard height for single leaf doors is 1250mm x 3000mm, and the height for double leaf doors is 2500mm x 3000mm

All doors are equipped with connecting locks, latches and handles (samples available or customized upon request)

The sound insulation door can be equipped with bird and insect screens as required

Doors can be coated with polyester powder coating

It can be galvanized steel, stainless steel, or aluminum
 

Our Advantages

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

NCC's anechoic louver has an energy-efficient aerodynamic design and a very low pressure drop characteristic. The sturdy all metal structure ensures a long service life for NCC's noise reduction louvers. If necessary, we can also provide necessary supporting steel structures and provide comprehensive installation services.

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

 

Testing Report

         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.

 

Certifications

All Reports can meet the American Standars, the sound testing we did with Intertek

Packaging & Shipping

 

About Our Factory

 

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.