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Flexible Acoustic Silencer air Duct
Description
Your professional flexible noise-reducing pipe manufacturer
Flexible sound-absorbing ducts can reduce the noise generated by the operation of ventilation system fans. Their appearance is similar to that of ordinary insulation ducts, but they are internally filled with special sound-absorbing materials.
Flexible sound-absorbing conduits are usually designed as multi-layer structures, typically consisting of a double-layer aluminum foil inner lining with sound-absorbing cotton. An additional layer of PVC can also be added to the outer layer to enhance the overall structure and structural strength. At the same time, due to the use of multiple layers of materials in flexible sound-absorbing conduits, they also have a certain heat insulation and thermal insulation effect.
Characteristics
- Diameter range: 75mm – 400mm
Temperature range: -30°C – +140°C
Maximum wind speed: 30 meters/second
Maximum working pressure: 2000 Pa
Radius arc degree: 0.54*D + 25mm
Fiber thickness: 50mm
Glass fiber layer density: 32kg/m²
Flame resistance: B1
Sleep disturbance reduction effect: 10 – 20 decibels/meter
After using antibacterial materials, it has a certain antibacterial ability. - Application
The HVAC and fresh air systems for places with high noise control requirements such as hotels, office buildings, hospitals, and opera houses.
The connection points of the air outlet of the air conditioning and ventilation system.
| Product Code | Diameter (mm) | Diameter (inch) | Length (meters) | Length (inches) |
| QJ80-05 | 80 | 3.2 | 0.5 | 19.7 |
| QJ80-10 | 80 | 80 | 1 | 39.4 |
| QJ100-05 | 100 | 3.9 | 0.5 | 19.7 |
| QJ100-10 | 100 | 100 | 1 | 39.4 |
| QJ110-05 | 110 | 4.3 | 0.5 | 19.7 |
| QJ110-10 | 110 | 110 | 1 | 39.4 |
| QJ125-05 | 125 | 4.9 | 0.5 | 19.7 |
| QJ125-10 | 125 | 4.9 | 1 | 39.4 |
| QJ150-05 | 150 | 5.9 | 0.5 | 19.7 |
| QJ150-10 | 150 | 5.9 | 1 | 39.4 |
| QJ160-05 | 160 | 6.3 | 0.5 | 19.7 |
| QJ160-10 | 160 | 6.3 | 1 | 39.4 |
| QJ180-05 | 180 | 7 | 0.5 | 19.7 |
| QJ180-10 | 180 | 7 | 1 | 39.4 |
| QJ200-05 | 200 | 7.8 | 0.5 | 19.7 |
| QJ200-10 | 200 | 7.8 | 1 | 39.4 |
| QJ250-10 | 250 | 9.8 | 1 | 19.7 |
| QJ300-10 | 300 | 11.8 | 1 | 39.4 |








