Introduction and Technical Structure

In the HVAC industry, the need for insulations with very low thermal conductivity and high flexibility has always been an engineering challenge. Kian Fan Industrial Production Group has provided an efficient and modern response to this need by producing elastomeric insulated flexible ducts. The structure of this product is formed from a combination of advanced materials: the inner layer is made of high-quality aluminum foil which guarantees resistance to tearing and abrasion. The core of the insulation is a layer of elastomeric foam with a thickness of 3 to 4 millimeters, which possesses excellent thermal and acoustic insulation properties due to its closed-cell structure. The outer layer can be made of aluminum foil or PVC based on customer order, protecting the insulation from weather factors, moisture, and physical impacts. Inside this structure, a sturdy steel spring is placed that maintains the cylindrical shape and allows for flexibility.
This product is manufactured in a diameter range of 10 to 40 centimeters and in standard 6-meter branches, making it suitable for most sub-ventilation applications.

Key Features and Advantages

The most important feature that distinguishes the elastomeric insulated flexible duct from other products is its very high thermal resistance. The elastomeric foam layer, with its considerable thickness, prevents heat exchange between the air inside the duct and the surrounding environment, which is very effective in reducing energy consumption in cooling and heating systems. Unlike traditional insulations, elastomeric foam has high flexibility and does not break or lose its insulating properties upon bending and straightening.
The lightweight of this product reduces the dead load on supports and facilitates its installation at heights and in suspended ceilings. The multi-layer structure and the presence of a protective coating create good resistance against moisture and prevent the formation of condensation and water droplets on the pipe surface. Also, this insulation layer acts as a sound absorber, reducing the transmission of motor and airflow noise to the interior of the building, a feature highly valued in residential and office environments.

Specialized Applications

Kian Fan's elastomeric insulated flexible duct has widespread applications in construction projects. In home ventilation systems and residential apartments, this product is used to connect main ducts to ceiling diffusers so that cool or warm air reaches the rooms without energy loss. In commercial, office buildings, and hotels where observing acoustic and energy standards is vital, the use of this duct is recommended.
Also, in ventilation systems for hospitals and laboratories where precise temperature control and prevention of sound leakage are required, this product offers optimal performance. In hot air transfer lines (such as connection to heaters) or very cold air (such as connection to VRF devices), elastomeric insulation with a thickness of 3 to 4 millimeters performs temperature maintenance in the best possible way.

Conclusion

The elastomeric insulated flexible duct of Kian Fan Industrial Production Group, combining excellent insulation properties, flexibility, and high durability, has established a new standard in air transfer systems. Choosing this product guarantees thermal and acoustic comfort for residents, along with a significant reduction in energy costs.

Structure: One layer of aluminum foil, one layer of elastomeric thermal insulation with a thickness of 3 to 4 mm, one layer of protective coating made of aluminum (or PVC according to customer order), and a steel spring
Diameter range: 10 to 40 cm
Branch length: 6 meters

Features

• High flexibility and lightweight
• Very high thermal resistance
• Application in home ventilation and commercial buildings