Product Description

The large diameter fiberglass pipe is engineered for high-volume fluid transport in major infrastructure and industrial projects. Designed to meet the demands of large-scale water, wastewater, and process piping systems, it delivers the inherent corrosion resistance and hydraulic efficiency of FRP technology in sizes suited for trunk mains, outfalls, and primary distribution networks.

Product Parameters

Diameter Range	DN1200 – DN4000
Pressure Rating	0.6–2.5 MPa
Stiffness Class	SN2500, SN5000, SN10000
Standard Length	6m, 12m, or custom
Joint Types	Flanged, butt & strap, mechanical coupling
Inner Surface	Hydraulically smooth, roughness coefficient ≤0.0084
Temperature Range	–40°C to +70°C
Chemical Resistance	Excellent resistance to corrosive fluids and seawater
Design Life	>50 years

Material

Composition: Multi-layer composite structure utilizing isophthalic or vinyl ester resin, E-CR glass fiber reinforcement, and a silica sand core.

Manufacturing Process: Computer-controlled filament winding ensures consistent wall thickness and structural integrity across large diameters.

Advantages

Corrosion Resistance at Scale: Eliminates the maintenance and failure risks associated with large-diameter steel or concrete pipes in aggressive soils, wastewater, or marine environments.

Lightweight for its Size: While large in diameter, its weight remains significantly lower than equivalent metal or concrete pipe, simplifying handling, transportation, and installation logistics, reducing heavy machinery requirements.

Superior Lifecycle Economics: The combination of a 50+ year service life, minimal maintenance, and reduced pumping costs due to excellent flow characteristics offers a lower total cost of ownership for large-diameter applications.

Engineered for Large-Scale Installation: Long pipe lengths reduce the number of joints, speeding up installation and enhancing the overall integrity of the pipeline system.

Hydraulic Efficiency in Bulk Transfer: The smooth bore minimizes head loss over long distances, making it exceptionally efficient for large-volume water transfer, intake/discharge lines, and stormwater management.