⭐ Technical Description
Steel wire reinforced polyethylene composite pipe is a new environmentally friendly pipeline system. High-strength steel wires are helically wound around the pipe body to form a mesh-structured reinforcement framework, while the inner and outer layers consist of high-density polyethylene (HDPE). These layers are bonded through a hot-melt adhesive and continuously extruded to form an integrated composite structure.
This design combines the excellent pressure-bearing capability of steel pipes with the hygienic, corrosion-resistant, and flexible characteristics of polyethylene pipes, offering ease of installation, reliable performance, and a long service life.
⭐ Product Performance
• Non-toxic and Safe
Manufactured from hygienic PE materials, making it ideal for environmentally friendly water supply, drainage, and gas distribution applications.
• Excellent Sealing Performance
Electrofusion welding bonds the pipe and fitting materials into a single homogeneous structure, ensuring leak-free joints.
• Strong Resistance to Ground Movement & End Loads
PE’s stress-relaxation properties allow the pipe to absorb strain through deformation, providing strong resistance to end-load forces.
In most cases, no costly concrete thrust blocks are required.
• Wide Corrosion-Resistance Range
Highly resistant to a broad spectrum of corrosive media; does not require concrete pipeline bedding, enabling faster installation.
• Lower Installation Costs
The smooth PE inner wall maintains a low friction coefficient, minimizing head loss.
Hydraulic performance improvements can increase flow capacity by up to 30% compared with traditional pipelines.
• Excellent Flexibility & Seismic Performance
The pipe’s flexibility allows it to withstand seismic activity, vibrations, and uneven ground settlement.
• High Dimensional Stability & Impact Resistance
Suitable for buried installation; resists sudden impact loads caused by soil settlement, ground slip, or vehicle loads.
• Excellent RCP & SCG Resistance
Provides strong protection against rapid crack propagation (RCP) and slow crack growth (SCG), ensuring long-term structural reliability.
⭐ Key Advantages
High Pressure Resistance & Excellent Safety
Hygienic and Non-toxic — suitable for potable water transmission
Superior Comprehensive Performance with Wide Application Range
⭐ Applications
SRCP pipes are widely used across multiple fields, including:
Municipal engineering (gas distribution, water supply, buried drainage, sewage networks)
Building installations
Petroleum & petrochemical industries
Chemical processing
Power engineering
Pharmaceutical manufacturing
Metallurgy and mining
Agricultural irrigation and water delivery systems
Nominal outer diameter (dn)/mm | Nominal pressure/MPa | |||||||
0.8 | 1.0 | 1.25 | 1.6 | 2.0 | 2.5 | 3.5 | ||
Basic dimension | Limit deviation | Nominal wall thickness en and limit deviation/mm | ||||||
50 | 4.5 | 5.0 | 5.5 | 5.5 | ||||
63 | 4.5 | 5.0 | 5.5 | 5.5 | ||||
75 | 5.0 | 5.0 | 5.5 | 6.0 | ||||
90 | 5.5 | 5.5 | 5.5 | 6.0 | ||||
110 | 5.5 | 5.5 | 7.0 | 7.0 | 7.5 | 8.5 | ||
140 | 5.5 | 5.5 | 8.0 | 8.5 | 9.0 | 9.5 | ||
160 | 6.0 | 6.0 | 9.0 | 9.5 | 10.0 | 10.5 | ||
200 | 6.0 | 6.0 | 9.5 | 10.5 | 11.0 | 12.5 | ||
225 | 8.0 | 8.0 | 10.0 | 10.5 | 11.0 | |||
250 | 8.0 | 10.5 | 10.5 | 12.0 | 12.0 | 12.5 | ||
315 | 9.5 | 11.5 | 11.5 | 13.0 | 13.0 | |||
355 | 10.0 | 12.0 | 12.0 | 14.0 | ||||
400 | 10.5 | 12.5 | 12.5 | 15.0 | ||||
450 | 11.5 | 13.5 | 13.5 | 16.0 | ||||
500 | 12.5 | 15.5 | 15.5 | 18.0 | ||||
560 | 17.0 | 20.0 | ||||||
630 | 20.0 | 23.0 | ||||||
Note: The above products are manufactured in accordance with the CJ/T 189-2007 standard.
Except for the 1.0 MPa and 1.6 MPa pressure ratings, other pressure classes require customized production.
