Product Description
NCC louvers are simply classified into the following types according to their performance: rainproof ventilation louvers, silencing ventilation louvers, Sand-Trap Louvers, etc.
The main purpose of Sand-Trap Louvers is to prevent sand and dust from entering the building from the outside and maintain the cleanliness and safety of the interior.
Sand-Trap Louvers are usually used at the vents of building entrances, exits, and basements, as well as for sand prevention on some building curtain walls and hotel exterior walls.
Dimension & Appearance
NCC Sand Trap Louver Function
The integrated design of louvers and dust filters facilitates the disassembly and assembly of filters;
The blade is a single S-shaped structure with waterproof and sand proof functions;
Louvers and dust filters are made of aluminum alloy material, which will not rust in any harsh environment;
A comprehensive solution that integrates rain, water, snow, sand, and dust;
Installation method optional: external or built-in (anti-theft design).
Filter can be selected: stainless steel mesh;
Protection level: IP54;
Optional filtration device: initial/medium efficiency;
The product thickness is 100mm and 200mm respectively;
Application industries: photovoltaic industry, wind power industry, charging pile industry, shipbuilding industry, air conditioning industry, etc
Our Advantages
The main features and benefits of NCC sandproof louvers are:
Equipped with weatherproof sealing plate to prevent rain and snow infiltration.Equipped with rainproof and rust-proof material selection and surface treatment process.
Reduce reflection noise and parallel barriers to improve indoor sound insulation.
Louver ventilation improves indoor air quality.The modular design makes the louvers suitable for "vents" of any size.
It can be used as an independent barrier around the equipment or combined with building walls.Composed of prefabricated parts, it can be assembled in the field quickly and without welding.
The horizontal layout of the sand shutter not only reflects the beauty, but also enhances the sand and dust prevention performance.Effectively prevent sand and dust from entering the room and adjust the indoor temperature and humidity.
With steel structure design ability, with wind, snow load calculation ability, improve indoor safety.Meet anti-theft requirements and standards.
NCC's louvers have an energy-efficient aerodynamic design and very low pressure drop characteristics. The robust all-metal construction ensures the long service life of the NCC noise reduction louvers. If required, we can also supply the necessary supporting steel structures and provide comprehensive installation services.And for each individual project, it can be adjusted according to site conditions, as well as environmental factors.
Product Parameters
Table 1 NCC Sandproof Louver Sand Trap Rate (Proportion) and Pressure Loss Table
| No |
Free Area Velocity
(m/s)
|
Total weight of sand injected
(Kg)
|
Block the weight of sand
(Kg)
|
Sand control rate
(%)
|
Loss of pressurel
(Pa)
|
| 1 |
0.5 |
1 |
0.95 |
95 |
8 |
| 2 |
1.5 |
1 |
0.88 |
88.0 |
15 |
| 3 |
4.0 |
1 |
0.56 |
56.0 |
85 |
| 4 |
6.0 |
2 |
0.85 |
29.0 |
110 |
| 5 |
8.5 |
2 |
0.28 |
14.0 |
210 |
Table 2 Composition Table of Experimental Sand Particles (Proportion)
|
Gradesize
μm
|
Mass
%
|
| >699 |
5 |
| 423 to 699 |
30 |
| 353 to 422 |
120 |
| 251 to 352 |
300 |
| 211 to 250 |
200 |
| 152 to 210 |
270 |
| 104 to 151 |
60 |
| 76 to 103 |
10 |
| <76 |
5 |
The specification shown in Table 2 matches very closely desert type sand and dust, and illustrates an overall grade. Other grades of sand can also be used for the tests and are specified as follows:
a) FINE - sand between 106 and 150 um. b) COARSE - sand between 355 and 425 um.
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
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.
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