Pre-Insulated HVAC Duct Boards
Pre-Insulated HVAC Duct Boards & Panels | PID & PI Rigid Ductwork
Guibao New Materials | China's Largest HVAC Duct Board Manufacturer
Est. 1984 · Phenolic, PIR & Fiberglass Pre-Insulated Duct Panels
As China's largest pre-insulated duct panel manufacturer with 40+ years of experience, Guibao New Materials delivers a full range of HVAC pre-insulated duct panel solutions, including PID duct panels, rigid duct insulation boards, and sandwich duct panels for commercial and industrial projects. Our pre-insulated duct boards and pre-insulated air duct panels support fast on-site fabrication, reducing installation time and energy loss for all types of pre-insulated ducting and PI duct systems.

Phenolic HVAC Duct Board: Complete System, Ready to Install
Beyond just phenolic HVAC duct boards, we deliver a fully integrated duct system from air handlers to terminal diffusers. Every component is precision-engineered to work seamlessly together, ensuring superior airtightness, fire safety and structural integrity.
Our turnkey package includes AHU flexible connectors, supply air plenums, reinforced duct sections, flange systems, hangers, fire dampers, wall sleeves, volume control dampers and grille diffusers. All joints are sealed with phenolic-specific aluminum foil tape and sealant. The system uses standard suspension brackets, with optional waterproofing for outdoor installations. This is a true ready-to-install solution: all components arrive pre-matched for immediate on-site assembly, cutting installation time significantly.
Professional Fabrication & Installation Support
We back your entire project, not just our duct boards:
·Full accessory kit — flanges, connectors, hangers and sealants engineered exclusively for phenolic duct boards, eliminating compatibility issues and quality risks
·Standardized installation guides — comprehensive manuals and step-by-step videos covering cutting, grooving, flange bonding, reinforcement and mounting
·Pressure engineering support — custom reinforcement plans and hanger spacing calculations tailored to your system's pressure requirements, ensuring full code compliance
·Remote & on-site technical support — our engineers assist with complex installations including fire damper integration, wall penetrations and structural transitions to keep your project on schedule
Guibao Pre-Insulated Ductwork System | PID Ducting Full Components
The Guibao pre-insulated duct system delivers innovative solutions for all your preinsulated duct projects, from rigid duct boards and pre-insulated air duct panels to precision flanges, fabrication tools and technical support.
Pre-Insulated Duct Board Manufacturing Line
Guibao Pre-Insulated Duct Panel Factory Tour | PID Duct Board Production
Why Choose Guibao for Pre-Insulated HVAC Duct & PID Ductwork Projects
China's Largest HVAC Duct Board Manufacturer | Guibao New Materials · Est. 1984
Rich Industry Experience
With over 40 years of experience in the HVAC industry, we have completed more than 10,000 projects worldwide.
Strong Production Capacity
We run 10 advanced automated production lines with a daily capacity of 30,000 sq.m, ensuring reliable quality and on-time delivery for large orders.
Professional Technical Team
Our experienced engineering team provides one-stop customized solutions and full-process professional technical support for all your project demands.
Competitive Factory Price
As a direct manufacturer without middlemen markup, we offer genuine factory direct prices, helping you save up to 20% cost compared with trading companies.
Comprehensive After-sales Service
We provide complete after-sales support, including on-site installation guidance, professional technical training and efficient problem solving anytime.
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