UNT Steel-faced PIR Composite Duct Panel Structure

The panel adopts a sandwich structure, with a closed-cell PIR foam layer of 55kg/m³ density in the middle, and steel panels closely bonded to both sides. This structure imparts excellent stability and comprehensive performance to the panel.

Highlight Performance

Performance Characteristics	Detailed Description
Excellent Thermal Insulation	PIR foam core has thermal conductivity as low as 0.020W/m・K, cutting AC energy use, boosting efficiency, and stabilizing indoor temp.
Superior Fire Resistance	Fire rating reaches BS 476 part 6&7 Class 0 (equivalent to GB 8624 - 2012 Class B1). Forms a dense carbonized layer in fire to stop flame spread, reduce smoke and toxic gases.
Lightweight and High-strength	Much lighter than traditional iron sheet ducts, reducing building load and easing transport/installation. Steel surface + PIR foam offers great compressive and bending strength to withstand high wind pressure.
Excellent Air Tightness and Sound Insulation	With special accessories, airtightness is over 8 times that of traditional ducts, reducing air leakage. PIR foam absorbs vibrations and sounds, lowering operational noise.
High Corrosion Resistance	Specially treated steel panel resists corrosion well, suitable for high-humidity environments, not easy to rust or deform, extending duct life and cutting maintenance costs.
Good Hygiene	Smooth inner steel surface prevents dust and bacterial buildup, meeting hygiene standards for food processing, electronics, pharmaceuticals, and healthcare to ensure clean air.

Core Features

Exceptional Thermal Insulation

The PIR core material has a thermal conductivity as low as 0.022W/(m·K).

It offers over 30% energy savings compared to traditional materials.

Effectively prevents condensation.

Outstanding Structural Strength

Compressive strength ≥ 150kPa.

The thickness of galvanized steel sheets ranges from 0.5 - 1.0mm.

Suitable for both positive and negative pressure ventilation systems.

Convenient Installation

Standard panel width is 1200mm, and the length can be customized.

Proprietary lock - edge design ensures airtightness.

Weighs only one - third of traditional metal ducts.

Superior Fire Resistance

Meets the EN13501 - 1 B - s1,d0 fire rating.

Features low smoke and non - toxicity.

Self - extinguishing material.

Product Specifications

The standard panel size is 3950mm×1200mm×20mm. However, different thicknesses (such as 10mm, 30mm, etc.) and dimensions can be customized according to the actual project requirements. Additionally, diverse options for steel surface thickness and color are available to meet personalized design needs.

Easy Installation

The panels are lightweight, allowing for convenient on - site fabrication into ducts of various shapes. This reduces transportation volume and costs. With professional installation tools and detailed installation guides provided, the installation process is simple and efficient, significantly shortening the construction period and reducing labor costs.

Service Life

Under normal use and maintenance conditions, the service life exceeds 20 years, offering extremely high cost - effectiveness. It is a reliable choice for the long - term and stable operation of ventilation systems.