1. The phenolic air duct is light in weight, which can reduce the construction load

The weight of phenolic composite air duct is light, about 1.4 kg/m², while the bulk density of galvanized steel duct (0.8mm thick) and glass fiber reinforced plastic duct (3 mm thick) are 7.08 kg/m² and 15~20 kg/m², respectively This can greatly reduce the load on the building and is extremely beneficial to the installation of the air duct. When installing, only need to set up a bracket every 4 m or so to have enough supporting force. This greatly reduces the load-bearing capacity requirements of brackets, hangers, etc., which makes transportation and installation very convenient.

2. The phenolic composite air duct has good thermal insulation, which can greatly reduce the heat dissipation loss of the air conditioner

The thermal conductivity of phenolic composite air duct is 0.016~0.036W/(m·k), while the thermal conductivity of galvanized steel duct and FRP duct is much larger. In addition, the unique connection method of the phenolic composite air duct ensures the excellent air tightness of the ventilation system, which is close to 8 times that of the galvanized steel duct. Some data show that when the same amount of heat (cold) is transported, the heat dissipation loss of the galvanized steel sheet duct is 15%, the heat dissipation loss of the glass fiber reinforced plastic duct is 8%, and the heat dissipation loss of the phenolic foam insulation material duct is less than 2%.

Phenolic composite air duct has a small thermal conductivity, while traditional air ducts have a large thermal conductivity. In addition, the unique connection method of the phenolic composite air duct ensures the excellent air tightness of the ventilation system, and the heat loss is significantly lower than that of the traditional air duct

3. Phenolic composite air duct is durable and has a long service life

Phenolic composite air duct is not as easy to rust, age, and damage as traditional air ducts, while the service life of phenolic composite air duct is at least 15 years. The service life is more than 3 times longer than that of traditional air ducts. In addition, the reuse rate of the phenolic composite air duct can reach 60%~80%, while the traditional air duct can hardly be reused.

4. Phenolic composite air duct has good silencing

Phenolic composite air duct sandwich is made of porous phenolic foam material board, which has good noise reduction performance. In the central air-conditioning system, it can significantly reduce indoor noise. The phenolic composite air duct itself is a very good tubular muffler, and there is no need to install muffler accessories such as muffler cover or muffler elbow.

5. Lower the floor height

Traditional air ducts require on-site insulation construction, so a certain construction height is required, which imposes additional requirements on the floor height of the building. The phenolic aluminum foil composite air duct does not require on-site insulation construction, so there is no need to reserve construction space, which can reduce the building's storey height.

6. Can shorten the construction period

The phenolic composite air duct is light in weight, and the installation is more convenient and faster than traditional air ducts. When the air pipe is hoisted, the required hanger is simple, the number is small, and almost no machinery is needed. The production is simple and convenient, completely breaking through the traditional craftsmanship, greatly shortening the construction period, and convenient for site changes. According to on-site calculations, each worker can install 20.0~30.0 square meters per day when installing the phenolic aluminum foil composite air duct, while the traditional air duct is only 4.0~5.0 m²/(day·person). Compared with the traditional air duct manufacturing, the phenolic aluminum foil composite air The production efficiency of the tube is increased by 4 to 5 times.

7. Hygiene

The surface of the phenolic composite air duct is sealed with aluminum foil, thus ensuring the sanitation of the conveying medium, avoiding secondary pollution, and the inner layer is free of condensation and rust. In traditional air ducts, glass wool and asbestos are easy to absorb moisture, and the thermal insulation performance deteriorates severely after absorbing water. Asbestos is a carcinogen, and glass wool dust can irritate the skin and make construction workers itchy. In addition, the galvanized steel sheet duct is easy to rust, and it is easy to produce cold bridge phenomenon.

8. Beautiful, suitable for surface installation

The phenolic composite air duct can be made into various colors, beautiful, and especially suitable for surface installation. The surface of the traditional air duct needs to be wrapped in aluminum foil on site, so the surface installation effect is not very good.

9. Wide range of application

Galvanized steel ducts are widely used, but have a low service life in high humidity environments. The use of FRP ducts in hospitals, food processing plants, basements and other places with dust-proof requirements and high humidity is also restricted, while phenolic composite ducts can be widely used Used in industrial and civil buildings, hotels, hospitals, office buildings and other places with special requirements.

10. Strong temperature adaptability

The phenolic composite air duct is suitable for a wide temperature range and can be used under high and low temperature (-140⁰C to 150⁰C) conditions, unlike some other composite air ducts, which can only be used at a temperature of 50⁰C.