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FRP PIPE
Fiberglass pipes are lightweight and economical pipes that can replace steel, iron, and concrete pipes.The core advantages of FRP continuously wound pipe lie in its high strength, high rigidity, excellent corrosion resistance, superior hydraulic performance, superior leak resistance, and the economic and length advantages afforded by continuous production. It seamlessly integrates materials science with advanced manufacturing processes, offering a high-performance, cost-effective, and environmentally friendly modern engineering piping solution, particularly suited for long-distance, high-flow, and corrosive transport.
Fiberglass reinforced plastic (FRP) ducts are ventilation pipes made with resin or magnesium oxychloride cement as the matrix and glass fiber as the reinforcing material. They are divided into two main categories: organic Fiberglass Air Ducts (resin-based) and inorganic Fiberglass Air Ducts (magnesium oxychloride cement-based). Our company mainly produces and sells organic FRP ducts with resin as the matrix.
Products Description
Fiberglass Air Duct are ventilation pipes made with resin or magnesium oxychloride cement as the matrix and glass fiber as the reinforcing material. They are divided into two main categories: organic FRP ducts (resin-based) and inorganic FRP ducts (magnesium oxychloride cement-based). Our company mainly produces and sells organic fiberglass flues with resin as the matrix.View Duct Specifications.
With Ten years experience, Pipezy can manufacture and fabricate the fiberglass chimneys system that you need.The Fiberglass Air Duct is manufactured to comply with recognized industry standards and can be customized to your exact specifications.Request Engineering Quote
1. Lightweight and High Strength
Weighing only 1/10 of concrete pipes and 30% of steel pipes of the same specifications, convenient for transportation and installation. Compressive strength reaches 65 MPa (organic type), with excellent impact resistance.
2. Corrosion Resistance and Durability
Organic type: Resistant to acid, alkali, and salt corrosion, suitable for corrosive gas emissions in chemical and textile industries.
3. Environmental Adaptability
Wide operating temperature range (-40℃~80℃), resistant to damp heat and freeze-thaw cycles.
4. Excellent Fluid Performance
Smooth inner wall, low resistance, 10% higher flow rate than steel pipes of the same specifications, reduced energy consumption. No fluid residue or scaling, stable flow rate over long-term use.
5. Economic Efficiency
Low overall cost, maintenance-free, no need for anti-corrosion treatment; the larger the pipe diameter, the more significant the cost advantage.
Manufacturing of Organic Fiberglass Air Ducts
Winding Process: Resin impregnates fiberglass, which is then wound layer by layer on a rotating mandrel; a sand layer enhances rigidity.
Hand Lay-up Process: Fiberglass cloth is laid on the mold surface and coated with resin; multiple layers are stacked, cured, and demolded; suitable for irregularly shaped pipe fittings.
Organic Type: Exhaust ventilation in corrosive environments such as chemical plants, electroplating plants, and laboratories.
Fume Exhaust Systems: Chemical processing plants and laboratories.
Flue Gas Desulfurization (FGD): Scrubber outlet ducts in power plants.
Semiconductor Manufacturing: Acid and alkali exhaust ventilation.
Pulp & Paper: Bleach plant ventilation and recovery boiler ducts.
Water Treatment: Odor control ductwork (H2S resistance).
Connection Method: Socket bonding (inorganic type) or flange bolts (organic type), sealing with 8501 adhesive strip.
Reinforcement Requirements: Reinforcing ribs are required when the side length is >1000 mm, with longitudinal spacing ≤1250 mm.
Spacing of Supports and Hangers: For horizontal installation, the spacing between supports with a long side ≤2000 mm should be ≤2 m, and the hanger diameter should be ≥10 mm.
We provide complimentary duct layout review, structural calculations for supports, and installation supervision. Submit your P&ID or duct layout for engineering recommendations.
Wall Thickness Tolerance: Deviation -1~0 mm when the side length is ≤300 mm.
Air Leakage Detection: A light leakage test is required; zero light leakage at the interface is acceptable.
Inorganic Type Defect Prevention: Control the uniformity of the slurry, curing temperature and humidity, and avoid flange deformation.
For top-quality Fiberglass Air Ducts, trust Pipezy – a leading fiberglass pipe manufacturer . Our products are designed for durability, corrosion resistance, and high performance across a wide range of industrial and commercial applications. With Pipezy’s expertise and commitment to quality, you can ensure reliable, efficient, and long-lasting airflow solutions for your projects. Contact Pipezy today to explore our fiberglass air ducts and discover the difference our premium products can make.
Q: How do you handle thermal expansion in long duct runs?
A: FRP has a coefficient of thermal expansion of 1.0-1.5 × 10⁻⁵ in/in/°F (lower than PVC). For runs exceeding 50ft, we specify expansion joints (bellows type or packed slip joints) every 30-40ft. Our engineering team calculates expansion based on your operating temperature range and provides detailed installation drawings.
Q: Can FRP duct support its own weight over long spans?
A: Yes, with proper design. FRP is 1/4 the weight of steel but has lower modulus of elasticity. We engineer wall thickness and rib spacing (for large diameters) to limit deflection to L/240 or L/360 as required. For spans >10ft, we may recommend trapeze supports or structural angles bonded to the duct.
Q: What about lightning protection for outdoor FRP stacks?
A: FRP is non-conductive and requires separate lightning protection. We recommend installing copper grounding conductors external to the duct, with bonding jumpers at joints. Our stacks can be designed with integral lightning rod attachment points.
Q: How do you ensure airtight joints in negative pressure systems?
A: Critical for vacuum service. We use flanged connections with full-face gaskets (not ring gaskets) and proper bolt torque sequence. For severe vacuum (>15" WG), we specify butt-wrap field joints or adhesive-bell joints with secondary mechanical locking. All joints are light-leak tested before startup.
Q: Is FRP duct compatible with VAV controls and fire dampers?
A: Yes. We supply FRP dampers (both volume control and fire-rated) that integrate with BMS systems. Fire dampers are available with fusible links (165°F or 212°F) and electric actuators. FRP duct can be fitted with standard airflow measurement stations using flanged connections.
Q: What is the lead time for custom ductwork?
A: Standard diameters (12"-48") ship in 3-4 weeks. Large diameters (>60") or complex fittings require 6-8 weeks. Emergency expedite available for critical shutdowns. We maintain raw material inventory for common resin systems to minimize lead times.
Need a Reliable Ducting Solution?
Send us your airflow requirements or drawings. Our team will recommend the most cost-effective resin system and design for your project.Get a Quote for My Project.
Let our team help you select the right product
Talk to our experts, we can help you meet your requirements and provide assistance for your next project.