Introduction and Technical Structure
PVC flexible ducts are among the most widely used components in HVAC and material transfer systems, and Kian Fan Industrial Group, relying on experience and modern technology, offers high-quality productions in this field. The structure of this product consists of a spiral tube made of soft, flexible PVC that is reinforced along the body with a strong steel spring. The diameter of this steel spring varies between 1 to 2 millimeters depending on the application and dimensions of the duct, playing a fundamental role in maintaining the product's shape and its strength against mechanical and tensile pressures.
This product is manufactured in a diameter range of 3 to 90 centimeters and in 6-meter lengths, which allows covering long paths with the minimum number of connections. One of the prominent features of Kian Fan's PVC flexible ducts is their operating temperature range, designed to continue their activity without changing physical and chemical properties at continuous temperatures between -20 to +80 degrees Celsius.

Unique Features and Advantages

The advantages of using Kian Fan's PVC flexible ducts go beyond simple air transfer. The high flexibility of this product allows for easy installation in spaces with geographical limitations and complex paths. Its high tensile strength results from the combination of premium PVC and steel spring, which resists tearing and stretching. The lightweight of these ducts reduces the load on supports and structures and accelerates the installation process.
Resistance to chemical effects, acid, and alkaline vapors makes this product suitable for specific industrial environments. In applications where the goal is transferring powdery or granular materials, there is a risk of static electricity accumulation; Kian Fan's PVC flexible ducts neutralize this risk with the capability of grounding the spring (earthing), guaranteeing system safety. This product is available in two types, colorless (transparent) and black, and with different spring and body thicknesses for light (residential) and heavy (industrial) applications.

Widespread Applications

The application of PVC flexible ducts in various industries is very extensive. In the residential and commercial ventilation sector, this product is used to connect main ducts to air diffusers and kitchen hoods. In clean rooms that require precise control of suspended particles, PVC flexible ducts are an ideal choice due to their smooth internal surface and high cleanability.
In dust and particle collection systems, these ducts act as suction branches and, due to their flexibility, can be connected directly to the particle source. Also, in manufacturing industries, this type of duct is used for transferring powdery, plastic, and granular materials, where the feature of discharging static electricity is of vital importance.

Conclusion

The PVC flexible ducts of Kian Fan Industrial Group, combining quality, diversity, and international standards, provide a comprehensive answer to the needs of engineers and employers in the field of ventilation and material transfer. Choosing this product means benefiting from a system with a long lifespan, easy maintenance, and optimal efficiency.

Structure: Soft PVC reinforced with a steel spring with a diameter of 1 to 2 mm
Diameter range: 3 to 90 cm
Branch length: 6 meters
Operating temperature range: -20 to +80 degrees Celsius in continuous heat

Features

• High flexibility
• High tensile strength
• Lightweight
• Resistant to chemical effects
• Capability to ground the spring to discharge static electricity (specific for material transfer)
• Available with different spring and body thicknesses for light and heavy applications
• Available in colorless or black

Application

• Residential and commercial ventilation
• Clean rooms
• Dust and particle collection systems
• Material transfer