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Epoxy fiberglass pressure pipes typically refer to composite pipes made of epoxy resin as the matrix and glass fiber as the reinforcing material, manufactured through processes such as winding, and are specifically designed to withstand internal pressure.
Products Description
Epoxy fiberglass pressure pipes typically refer to composite pipes made of epoxy resin as the matrix and glass fiber as the reinforcing material, manufactured through processes such as winding, and are specifically designed to withstand internal pressure.
Our epoxy fiberglass reinforced plastic pipes are manufactured using advanced filament winding technology with high-grade epoxy resin and E-glass fiber reinforcement. Unlike standard polyester FRP pipes, our epoxy formulation delivers superior mechanical strength and chemical resistance for demanding industrial applications.Exceptional Corrosion Resistance
Impervious to acids, alkalis, and salts. No lining or coating is required, eliminating the risk of intrnal corrosion.
High-Pressure Performance
Engineered for working pressures from PN0.6 to PN4.0 MPa (87-580 psi) with a 4:1 safety factor. Our proprietary winding design optimizes hoop and axial strength distribution, ensuring reliability in high-pressure water injection and process applications.
Good Pressure Resistance
Through scientific winding design, the circumferential and axial strength of the pipe can be precisely controlled to meet the requirements of different pressure levels. The working pressure can typically range from a few kilograms to tens of kilograms.
Thermal Stability
Operating temperature range: -40°C to +110°C (-40°F to 230°F). Special formulations available for continuous operation up to 130°C (266°F) in thermal cycling conditions.
Petrochemical industry : oilfield water injection pipes, crude oil transportation pipes, chemical process pipelines, and transportation of corrosive media.
Municipal water supply and drainage : main urban water supply pipelines, reclaimed water pipelines, and pressurized sewage pipelines.
Power industry : circulating cooling water pipelines, ash and slag conveying pipelines, and desulfurization system slurry pipelines.
Marine engineering : seawater desalination plant pipelines, ship pipelines, and offshore platform water supply pipelines.
Mining : Slurry transport pipelines, tailings transport pipelines, ventilation pipelines.
Food and brewing : Due to its smooth inner wall that does not accumulate scale, it is also used in process pipelines in the food and beer industries.
Get a personalized quote for your project. Our engineers are ready to assist you with material selection and flow calculations.
Diameter range : typically from DN25 to DN4000 or even larger.
Pressure ratings : Common ratings include PN0.6, PN1.0, PN1.6, PN2.5, and PN4.0 MPa, and higher pressure ratings can also be customized.
Implementation standards : Chinese standards: GB/T 21238 "Glass fiber reinforced plastic sand-filled pipe", JC/T 695 "Centrifugally cast glass fiber reinforced unsaturated polyester resin sand-filled pipe", etc. (Note: These standards are mainly for polyester pipes, but epoxy pipes can refer to their mechanical performance requirements, and corrosion resistance needs to be agreed separately.)
International/Foreign Standards: ASTM D2996 (centrifugal casting), ASTM D2997 (fiber winding), AWWA C950, etc.
Request Full Technical Data Sheet.
Manufactured in ISO 9001:2015 certified facilities with comprehensive quality control from raw material to finished product.
Raw Material Inspection - Epoxy resin viscosity and glass fiber sizing verification
In-Process Monitoring - Continuous filament tension and resin bath temperature control
Hydrostatic Testing - 100% pressure testing at 1.5× rated working pressure
Dimensional Verification - OD, wall thickness, and length tolerance checks
Final Inspection - Visual examination per ASTM D2563, Barcol hardness >45
| characteristic | Epoxy fiberglass pressure pipe | Unsaturated polyester (UP) fiberglass pipe | Vinyl ester (VE) fiberglass pipe |
| Corrosion resistance | Excellent , especially for alkaline and organic solvents. | Good, but slightly worse for alkaline media and some solvents. | Excellent overall corrosion resistance, especially resistant to strong acids and high-temperature corrosion. |
| Temperature resistance | Medium (approximately 80-110°C) | Lower (approximately 60-80°C) | High (approximately 100-120°C) |
| Mechanical strength | High, strong adhesion | good | Very high, extremely strong adhesion |
| cost | higher | lowest | Highest |
| Main applications | Chemical industry, high-requirement water supply, power | Municipal water supply and drainage, cooling water, and general corrosive environments | Stringent chemical and metallurgical |
Epoxy resin pipes are an upgrade from unsaturated polyester pipes in terms of corrosion resistance, mechanical strength, and overall performance , but they are also more expensive. For the most demanding corrosive environments, vinyl ester pipes, which offer better performance but are also more expensive, are chosen. Get a Quote Now.
Q: How does FRP pipe handle thermal expansion?A: FRP has a thermal expansion coefficient of 1.8×10⁻⁵/°C, lower than PVC and comparable to steel. We provide expansion joint calculations and can supply pre-fabricated expansion joints for long runs. Typical design accommodates 6mm per 10m per 10°C temperature change.
Q: What is the lead time for custom specifications?A: Standard sizes (DN100-DN600) ship within 2-3 weeks. Custom diameters or high-pressure ratings require 4-6 weeks. Emergency expediting available for critical projects.
Q: Can FRP pipe be repaired if damaged?A: Yes. Minor surface damage can be repaired with epoxy putty and fiberglass overlay. For significant damage, pipe sections can be cut and joined using standard butt-and-wrap techniques. We provide detailed repair procedures and can supply repair kits.
Q: How do you ensure quality during international shipping?A: Pipes are shipped on steel racks with padding protection. Ends are capped to prevent damage. Container loading supervised by QC inspectors. Full photographic documentation provided. We recommend sea freight for cost efficiency, but air freight available for urgent orders.
Q: Do you provide installation supervision?A: Yes. We offer installation training for contractor crews and can provide on-site supervision for critical projects. Installation manuals available in English, Spanish, Arabic, and Russian. Video installation guides provided with every order.
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