UNT Pre-insulated ductwork is a high-quality product which specializes in the research and manufacturing of insulation materials for HVAC systems. Here is a detailed introduction:
Polyurethane (PU) Pre-insulated Ductwork: The UNTduct panel of this type incorporates polyurethane closed-cell foam with embossed aluminum facing on both sides. It is energy-saving and environmentally friendly, with a foam density of 55 kg/m³. The standard panel size is 3950 mm × 1200 mm × 20 mm, and the thickness of the aluminum foil can be 0.06 mm or 0.08 mm.
Polyisocyanurate (PIR) Pre-insulated Ductwork: This ductwork is specially designed for the air ducts of HVAC systems in bullet trains. It has a panel structure of silver aluminum/PIR foam/silver aluminum, with a foam density of 50 kg/m³. The standard panel dimensions are 3950/2950/2900 mm × 1200 mm × 20 mm, and the aluminum foil is 60-micron embossed.
Phenolic Pre-insulated Ductwork: The UNTduct phenolic system uses a CFC/HCFC-free phenolic foam board with zero ozone depletion potential, faced on both sides with reinforced foil. It is an advanced and innovative energy-saving air distribution ductwork system, which can reduce air leakage to a very low level.
Pre-insulated Ductwork
3 types of Pre-insulated Ductwork
Key Features and Advantages of UNT Pre-insulated Ductwork
Excellent Thermal Insulation: The PU and PIR foam cores in UNT pre-insulated ductwork have very low thermal conductivities. For example, the thermal conductivity of PU pre-insulated ductwork is 0.020 - 0.021 W/m·K. This feature helps to minimize heat loss or gain in HVAC systems, improving energy efficiency.
Lightweight and Durable: UNT pre-insulated ductwork is much lighter than traditional galvanized iron ductwork. For instance, the phenolic pre-insulated ductwork is 72% lighter than insulated sheet metal ductwork. Despite its light weight, it has high compressive and bending strengths, with a lifespan of more than 20 years.
Good Air Tightness: The design of UNT pre-insulated ductwork, including its jointing systems, helps to reduce air leakage. The phenolic pre-insulated duct system can reduce air leakage to a fraction of that typical of sheet metal ductwork.
Environmentally Friendly: The foam materials used in UNT pre-insulated ductwork are CFC and HCFC-free, which have zero ozone depletion potential, making them environmentally friendly.
Hygienic and Corrosion-resistant: The aluminum foil facings on both sides of the duct panels are anti-bacterial and corrosion-resistant, which helps to maintain good internal air quality and is suitable for applications in environments with high hygiene requirements, such as food processing, electronics, pharmaceuticals, hospitals, and medical centers
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