Cooling Tower Inlet Attenuators and Screens Single or Double Leaf Acoustic Door

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Cooling Tower Inlet Attenuators and Screens Single or Double Leaf Acoustic Door

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Product Description

Basic Specifications

Model NO.	NCC-02	Material	Aluminum Alloy
Style	Modern	Open Style	Swing
Sound Insulation	10-15 dB	Screen Netting	Steel
Security Rating	Soundproof Doors	Surface Finishing	Finished
Function	Acoustic Door	Capacity	100/Month

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 include:

Air inlet of ventilation system / Cooling towers
Machine room air inlet & Data center vents
Water pump room air inlet
Transformer/substation sound insulation room
Ventilation louvers for construction machinery radiators
Wind turbine vents

NCC louvers can be made into sound-absorbing louvers with single or double leaf structures. The standard height for single leaf doors is 1250mm x 3000mm, and for double leaf doors is 2500mm x 3000mm. All doors are equipped with connecting locks, latches and handles.

Key Advantages

Weather Resistant: Equipped with sealing plates to prevent rain and snow infiltration.
Modular Design: Suitable for use with any size of ventilation opening.
Aesthetic & Functional: Horizontal blade arrangement enhances acoustic performance.
Protection: Optional stainless steel or galvanized bird/insect nets.
Energy Efficient: Aerodynamic design with very low pressure drop characteristics.

Sound Transmission Loss (dB)

Wing Curved Louver Performance:

Model	Depth (mm)	63Hz	125Hz	250Hz	500Hz	1kHz	2kHz	4kHz
Model NR	300	5	6	11	12	12	15	12
Model 2NR	600	6	11	15	20	24	27	26
Model NLP	300	4	6	8	10	13	9	7

Linear Louver Performance:

Model	Depth (mm)	125Hz	250Hz	500Hz	1kHz	2kHz	4kHz	8kHz
SL-100	100	5	6	7	9	14	16	14
SL-300	300	7	10	11	17	17	14	13
SL-600	600	8	11	24	30	33	29	29

Testing & Manufacturing

NCC operates a high-end acoustic laboratory to ensure all bespoke products meet rigorous requisites. Pre-production sample testing guarantees that every batch delivered possesses outstanding quality. Our laboratory achieves sound reduction from 80.1 dB to 36.4 dB or lower.

Frequently Asked Questions

Q1: What materials are used for NCC acoustic louvers? A: Our louvers can be manufactured using galvanized steel, stainless steel, or high-grade aluminum alloy depending on your project requirements.

Q2: Can the size of the louvers be customized? A: Yes, our modular design allows us to customize sizes to fit any ventilation opening or "vent" requirement.

Q3: Do these louvers provide protection against weather and pests? A: Yes, they are equipped with weather-resistant sealing and can be fitted with stainless steel or galvanized bird and insect nets.

Q4: What is the typical sound insulation performance? A: Depending on the model and depth (up to 600mm), our louvers can provide significant sound transmission loss, reaching up to 33dB at certain frequencies.

Q5: What are the primary application scenarios? A: Common applications include cooling towers, data center vents, transformer rooms, and ventilation openings on soundproof enclosures.

Q6: Do you provide installation support? A: Yes, we offer comprehensive professional services including design, manufacturing, and installation support for various noise control projects.