Thanks to its excellent products and quality services, UNT Duct is one of the leading hvac air ducts manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
HVAC air Ducts
Polyurethane (PU) Foam Pre-Insulated HVAC Ductwork Panel is a high-performance, all-in-one solution designed for modern heating, ventilation, and air conditioning (HVAC) systems. Built with a precision-engineered sandwich structure, it features a dense polyurethane (PU) foam core-celebrated for its exceptional thermal insulation properties-sandwiched between two protective layers of corrosion-resistant aluminum foil. This factory-prefabricated panel merges insulation, structural strength, and airtightness into a single component, eliminating the need for separate insulation installation and streamlining ductwork setup in diverse buildings.
Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 40-45kg/m3
Aluminum Thickness: 0.06mm or 0.08mm
Aluminum Color: Silver
Packing: 10 sheets/ package
Loading Capacity: 710 sheets/ 40'HQ (packed with plastic bags)
660 sheets/ 40'HQ (packed with cardboard box)
Main Production Process of HVAC air Ducts
1. Raw Material Mixing
2. Aluminum Foil Embossing
3. PU/pIR Foam Injection
4. foaming & Laminating
5. Pre-insulated duct Cutting
6. duct panel Auto-stacking
7. Packing of Pre-insulated Duct
8. Stocking of pre-insulated duct
Technical Performance of HVAC air Ducts
Airflow Transport Efficiency
The duct serves as the air transmission channel, directly determining the system's air volume and pressure loss. Optimized cross-sectional design and smooth inner walls can reduce air resistance, improve air distribution uniformity, and minimize indoor temperature unevenness. The high-sealing structure can control the leakage rate at a low level, avoid energy waste, and ensure stable air volume at the terminal outlet.
Insulation and Energy Saving Characteristics
High-quality ducts adopt composite insulation structures or integrated insulation core materials, with low thermal conductivity, effectively reducing energy loss during the cold and hot transfer process. Compared to traditional un-insulated ducts, it can reduce the load of the air conditioning main unit, extend equipment lifespan, and help buildings achieve low-carbon and energy-saving operation.
Materials and Structure of HVAC air Ducts
1. Comparison of Main Materials
Galvanized steel sheet duct: High strength, good pressure-bearing capacity, wide application range, suitable for high-pressure and large-span ventilation systems.
Composite insulation duct (phenolic / polyurethane / glass fiber): Comes with an insulation layer, easy installation, excellent sound insulation, suitable for medium and low pressure, projects with high energy-saving requirements.
Flexible duct: Can be bent, suitable for irregular spaces, used for terminal connection, flexible installation.
2. Advantages of Structural Design
Standardized modular structure supports factory prefabrication and on-site rapid connection, common plate flanges, plug-in connection and other processes improve installation efficiency and shorten construction period. Lightweight design reduces building load, suitable for high-rise and renovation projects.
Market and Trend Perspective of HVAC air Ducts
Industry Demand Growth
With the promotion of green buildings and carbon neutrality policies, the popularity of HVAC systems has increased, and the duct market has maintained stable growth. High-end and energy-efficient products are more competitive.
Technical Development Direction
It is upgrading towards integrated insulation, prefabrication production, intelligent monitoring, and lightweight and environmentally friendly directions. Combined with the Internet of Things, it realizes air volume monitoring and fault warning, improving system operation efficiency.
Core Competitive Points
The competition among enterprises focuses on material formulation, sealing technology, production accuracy and installation services. Products with national or international certifications (such as ASTM, EN) have more advantages in domestic and international projects.
Hot Tags: hvac air ducts, China, suppliers, manufacturers, factory, customized
