Thanks to its excellent products and quality services, UNT Duct is one of the leading pre-insulated pir aluminum duct 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.

Pre-insulated PIR Aluminum Duct

A pre-insulated PIR aluminum duct is a modern, all-in-one system for heating, ventilation, and air conditioning (HVAC). It consists of a rigid foam core made of Polyisocyanurate (PIR) that is permanently bonded to aluminum foil on both sides . This "sandwich" construction integrates the duct, insulation, and vapor barrier into a single panel, simplifying installation compared to traditional systems.

Here's a breakdown of its key features and benefits:

Key Components PIR Core: This rigid, closed-cell foam is the core of the duct panel. It provides excellent thermal insulation and structural strength . Typically, its thermal conductivity (k-value) is very low, around 0.020.

Aluminum Foil Facings: Both sides of the core are laminated with aluminum foil. The foil acts as a built-in vapor barrier, a protective layer, and a reflective surface. The thickness can vary, with common options being 80-micron foil for internal use or 200-micron sheets for greater durability in external applications.

Advantages of Pre-insulated PIR Aluminum Duct Over G.I. Ductwork

Excellent thermal insulation, minimal thermal bridging, cut air-conditioning energy consumption by 20~30%.

Integrated pre-insulated design, lightweight, 40–60% faster installation and reduced labour expense.

Superior air tightness, lower air leakage and stable HVAC operational efficiency.

Built-in sound absorption to reduce airflow noise.

Anti-condensation, anti-corrosion, mould-resistant and hygienic.

Thinner panel saves ceiling installation space.

Favourable fire performance with low smoke emission.

Competitive total lifecycle cost and environmentally friendly composition.

Pre-insulated Duct Production Equipment

Xiamen UNT Duct Technology Co., Ltd. owns a complete, integrated and full-chain production system for pre-insulated duct panels. All procedures including PIR/PU foam core forming, panel lamination, aluminum foil embossing and supporting PVC profile extrusion are finished in-house.

With continuous equipment upgrading, we achieve superior foaming precision, finer foam texture and consistent product quality, supplying high-performance pre-insulated duct systems to global customers.

Our core production equipment is listed as below:

1. Newly Upgraded High-Pressure Foaming Machine
2. Continuous Pre-insulated Duct Panel Production Line
3. Professional PVC Profile Extrusion Line
4. Aluminum Foil Embossing Machines & Steel Embossing Machine

5. Pre-insulated Duct Panels Auto-stacking Machine

Our comprehensive intelligent production equipment system is the solid foundation for UNT Duct to deliver stable high-quality products, continuously upgrade solutions and serve global markets sustainably.