Fire Rated Smoke Exhaust Duct Series
Fire Rated Smoke Exhaust Duct Series
GB Duct, authoritative expert in fire & smoke exhaust duct systems, specializes in magnesium oxide and polymer composite duct boards, supporting full non-standard tailor-made customization.
Polymer Composite Fire Duct: Complete Turnkey Ready-to-Install System
We deliver far more than premium polymer composite fire-rated ducts — a fully integrated fire and smoke exhaust system spanning from air handlers to terminal diffusers. Every component is precision-engineered for seamless integration, delivering industry-leading fire resistance, airtightness and structural integrity.
Our all-in-one package includes AHU flexible connectors, supply air plenums, reinforced duct sections, flanges, hangers, fire dampers, wall sleeves, volume control dampers and grille diffusers. All joints are sealed with polymer-specific aluminum foil tape and high-temperature sealant. Standard suspension brackets are included, with optional waterproofing for outdoor installations. This is a true ready-to-install solution: all components arrive pre-matched for immediate on-site assembly, drastically cutting labor time and project delays.
Professional Fabrication & Installation Support
We stand behind your entire project, not just our ductwork:
·Exclusive accessory kit: Flanges, connectors, hangers and high-temperature sealants engineered specifically for polymer composite duct systems, eliminating compatibility issues and quality risks
·Standardized installation resources: Detailed 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 assistance: Our engineers support complex installations including fire damper integration, wall penetrations and structural transitions to keep your project on schedule
GB Ductwork System Key Components
The GB Duct System is a globally leading, innovative solution for fire and smoke exhaust ductwork. Boasting easy installation and minimal maintenance, it sets a new benchmark in fire & smoke ventilation technology.
Beyond premium MgO fire-rated duct panels, GB provides a complete one-stop system: precision accessories, specialized machinery, custom tools and professional technical support — ensuring perfect fabrication and hassle-free installation.
• 1 pc Left 45° Cutter
• 1 pc Right 45° Cutter
• 1 pc 90° Straight Cutter
• 1 pc 45° Edge Side Cutter
• 2 pcs Tape Measure
• 1 pc 3mm Hex Wrench
• 1 pc 5mm Hex Wrench
• 1 pc Anti-rebound Rubber Hammer
• 50 pcs Spare Replacement Blades
• 2 pcs Plastic Scraper
• 1 pc Utility Knife
• 2 pcs Marking Pen
• 1 pc Adjustable Tape Marker
Why Choose Us
GB DUCT | HVAC & Fire Smoke Exhaust Duct Specialist, Since 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 own 10 modern automatic production lines with an annual output capacity of 300,000 square meters, guaranteeing stable quality and on-time delivery even for bulk 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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