Introduction and Technical Structure

Vinyl flexible ducts are among the most widely used fittings in building ventilation systems, and Kian Fan Industrial Production Group has included them in its product portfolio while observing high-quality standards. The structure of this product consists of a flexible tube made of high-quality polyester fibers covered with a layer of PVC. This combination provides the product with extraordinary flexibility while creating a smooth and resistant surface. Inside this structure, a steel spring with a diameter of 0.9 to 2 mm is placed, responsible for maintaining the duct shape and resisting mechanical and tensile pressures.
This product is manufactured in a diameter range of 5 to 50 millimeters and in standard 6-meter branches, making it perfectly suitable for connecting diffusers, hoods, and small ventilation devices. The operating temperature range of these ducts is between -10 to +60 degrees Celsius, covering a suitable range for common HVAC applications in buildings.

Key Features and Advantages

One of the prominent features of Kian Fan's vinyl flexible duct is its very high flexibility, which allows installation in sharp bends and various angles without causing breakage or changes in the air passage cross-section. The tensile strength resulting from the steel spring and the polyester fiber weave prevents the duct from tearing due to pulling or its own weight.
The lightweight of this product minimizes the load on supports and structures and facilitates the installation process for contractors. Another distinctive feature is high resistance to vibration; in systems where the motor or fan generates vibration, the vinyl duct acts as a vibration insulator, preventing the transmission of noise and vibration to other parts of the ductwork. This plays an important role in reducing building noise pollution.

Specialized Applications

The primary application of vinyl flexible ducts is in residential and commercial ventilation systems. This product is often used for the final connection of main ducts to ventilation diffusers in suspended ceilings or walls. Also, in household and industrial kitchen hoods for exhausting vapors and smoke out of the building, it is considered the first choice due to its flexibility and ease of installation.
In air exhaust systems containing light and fine dust, vinyl flexible ducts offer optimal performance. The smooth internal surface and PVC coating prevent dust accumulation within the fiber texture and allow for easy cleaning. Additionally, this type of duct is used in ventilation systems for devices such as air conditioners and splits where a flexible connection is needed between the indoor panel and the air outlet.

Conclusion

The vinyl flexible duct of Kian Fan Industrial Production Group, relying on premium raw materials and an engineered structure, is a simple, lightweight, and effective solution for completing ventilation systems. Using this product ensures proper airflow while reducing vibrations and increasing the lifespan of the ventilation system.

Structure: PVC-coated polyester fibers with a steel spring diameter of 0.9 to 2 mm
Diameter range: 5 to 50 mm
Branch length: 6 meters
Operating temperature range: -10 to +60 degrees Celsius

Features

• High flexibility
• High tensile strength
• Lightweight
• Resistant to vibration

Application

• Residential and commercial ventilation
• Air exhaust with light dust