A flexible ventilation connector is a type of flexible accessory used in ventilation systems such as fans and ducts. Its main function is to achieve elastic connection between pipes, thereby compensating for displacement, reducing vibration and noise, resisting high temperatures, and sealing.
Flexible ventilation connections (also known as fan connections or canvas connections) are widely used in construction, industry, and fire protection. Installed at fan inlets/outlets or duct connections, they are used to address issues such as thermal expansion and contraction and equipment vibration. They not only protect the system’s stable operation but also improve safety and extend its service life.
Core features and functions:
Multi-directional compensation: Provides significant displacement compensation in the axial, angular, and lateral directions, adapting to complex installation environments.
Vibration reduction and noise reduction: The fiber fabric and insulation layer have sound absorption and vibration reduction effects, reducing the noise of the fan system.
High temperature and corrosion resistant: Made of silicone-coated fiberglass cloth, nylon cloth, flame-retardant canvas, etc., it can work in environments ranging from -70℃ to 280℃, and some models can withstand even higher temperatures.
Fire safety: Meets fire protection requirements; some products can operate continuously at 280℃ for more than 30 minutes and are suitable for smoke extraction systems.
Easy installation: Supports multiple
Material Type
Canvas (Cotton/Polyester)
Silicone + Fiberglass Cloth
Nylon Cloth + Steel Wire Frame
Rubber Material
Composite Insulation Type
(Supplementary Notes) The frame is usually supported by φ5-8mm steel wire to ensure structural stability and elasticity.
connection methods such as flange connection and clamp connection, facilitating disassembly and maintenance.
| Applicable Scenarios | Temperature Range | Main advantages: |
| Indoor ventilation, general air circulation | Normal temperature ~ 150℃ | Low cost, good breathability |
| High-temperature fans, smoke exhaust systems | -70℃ ~ 280℃ | High temperature resistance, fire resistance, corrosion resistance |
| Industrial exhaust, dust removal systems | -25℃ ~ 280℃ | Strong, flame retardant, and resistant to acids and alkalis |
| Outdoor, humid environments | -40℃ ~ 100℃ | Waterproof, pressure-resistant, and anti-aging |
| Insulated duct systems | Customizable | It combines heat insulation, sound absorption, and pressure resistance. |
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