High-Rigidity Steel Wire Reinforced PE Composite Pipe

High-Rigidity Steel Wire Reinforced PE Composite Pipe features a specially engineered reinforced composite structure designed to improve dimensional stability, rigidity and above-ground installation performance.

Its linear thermal expansion coefficient is approximately 1/6 that of conventional PE pipe and approximately 1/3 that of standard SRTP, significantly reducing thermal deformation of exposed pipeline systems. The enhanced ring stiffness also helps reduce deformation during transportation and installation and improves resistance to pipe collapse under negative pressure.

With its combination of low thermal expansion, high rigidity, lightweight construction and outdoor weather resistance, the pipe is particularly suitable for above-ground pipelines, elevated pipe corridors, complex terrain and projects where pipeline appearance and structural stability are important.

Product Specification

Note: Other sizes, pressure ratings and customized specifications are available upon request.

Product Highlights

• Ultra-Low Thermal Expansion – Linear thermal expansion coefficient is approximately 1/6 of conventional PE pipe and 1/3 of SRTP, helping significantly reduce thermal deformation.

• Enhanced Pipeline Straightness – Lower thermal expansion helps maintain pipeline alignment and improve the overall appearance of exposed and elevated pipe systems.

• High Ring Stiffness – Enhanced structural rigidity helps reduce deformation during transportation and installation and improves resistance to negative-pressure collapse.

• Excellent Above-Ground Performance – Designed for exposed and elevated pipelines where dimensional stability and structural rigidity are critical.

• Long-Span Capability – The reinforced structure provides enhanced resistance to vertical deformation, supporting elevated pipeline installations.

• Lightweight Construction – Easier to transport, lift and install than conventional steel pipelines.

• Outdoor Weather Resistance – Suitable for long-term outdoor pipeline applications exposed to sunlight and changing weather conditions.

• Complex-Terrain Adaptability – Suitable for pipeline projects crossing rivers, roads, valleys and other areas where conventional trench excavation is difficult.

• Improved Pipeline Safety – Reduced deformation helps maintain pipeline geometry and supports stable long-term operation.

• Cost-Effective for Temporary Projects – Lightweight construction and rapid installation make it suitable for emergency water supply, flood drainage and temporary construction pipelines.

• Custom Engineering Available – Diameter, pressure rating, structural design, length, connection system and other specifications can be customized according to project requirements.

Performance Test

6 m Span · Full-Water Loading · Over One Month of Summer Outdoor Exposure

A full-water-load vertical deformation test was conducted on the newly designed composite pipe structure. The pipe was installed with a 6 m unsupported span and exposed to summer outdoor conditions for more than one month.

Pipe Condition: Fully water-filled

Unsupported Span: 6 m

Outdoor Exposure: More than 1 month during summer

Deflection with Full Water Load: Only 7 cm at the center of the span

Deflection with an Additional 78 kg Load: Only 11 cm at the center

Comparison: Traditional pipe showed approximately 60 cm downward deformation after only one day under comparable placement conditions.

Test results demonstrate the enhanced vertical load-bearing and deformation resistance of High-Rigidity Steel Wire Reinforced PE Composite Pipe.

Hydrostatic & Burst Performance

Factory Inspection – Performance Requirements