Acoustic Insulated Aluminum Flexible Duct
Acoustic Insulated Aluminum Flexible Duct for Fresh Air Systems, HRV Ventilation and Noise Reduction Applications
Our Acoustic Insulated Aluminum Flexible Duct is specially designed for fresh air systems, HRV/ERV ventilation, air supply ducts, and low-noise HVAC applications. This duct is engineered to reduce airflow noise and improve indoor acoustic comfort in places with high sound control requirements.
The duct features a multi-layer construction. The inner duct is made of double-layer perforated aluminum foil, with sound-absorbing cotton insulation placed in the middle. The outer jacket consists of four-layer aluminum foil with reinforced polyester and PVC composite protection, providing good durability, thermal insulation, and noise attenuation performance.
It is widely used in high-end residences, offices, hospitals, cinemas, and other buildings requiring quiet air distribution systems. It is especially suitable for connecting air outlets, fresh air units, return air systems, and air conditioning ventilation systems.
Key Features
- Multi-layer acoustic insulated flexible duct structure
- Excellent noise reduction performance
- Inner perforated aluminum foil for sound attenuation
- Sound-absorbing insulation layer inside
- Outer aluminum foil composite jacket for durability
- Suitable for fresh air and HVAC ventilation systems
- Ideal for quiet indoor environments
- Flexible and easy to install
Applications
- Fresh air systems
- HRV / ERV systems
- Five-constant climate control systems
- Air conditioning ventilation systems
- Supply air and return air duct connection
- Air outlet connection ducts
- Quiet ventilation projects in residential and commercial buildings
Specifications
- Material:Polyester Fiber + Aluminum Foil Composite
- Inner Structure:Double-layer perforated aluminum foil inner duct
- Insulation Layer:Sound-absorbing cotton
- Outer Jacket:Four-layer aluminum foil composite outer layer
- Diameter Range:75 mm – 400 mm
- Temperature Range:-30°C to +140°C
- Maximum Air Velocity:30 m/s
- Maximum Working Pressure:2000 Pa
- Bending Radius:54 × D + 25 mm
- Insulation Thickness:50 mm
- Flame Rating:B1 Grade (Flame Retardant)
- Antibacterial Performance:Bacillus and Cocci >99.99%
- Noise Reduction Effect:10–20 dB per meter