Pressure pipe
Steel Wire Reinforced PE Composite Pipe
Extruded PE core, wound steel wire, extruded PE jacket
Steel Wire Reinforced PE Composite Pipe is a polyethylene pressure pipe with wound steel wire between an extruded PE core and an extruded PE outer jacket. Shunfang produces it up to DN1600 (1.6 m) with nominal pressures up to 3.0 MPa; the pressure class available depends on diameter.
- Diameter range
- Up to DN1600 (1.6 m, 63 in)
- Nominal pressure (PN)
- 0.4–2.5 MPa standard (4–25 bar); 3.0 MPa (30 bar, 435 psi) by project review
- Identification
- Blue stripes
- Reinforcement
- Carbon spring-steel wire, tensile strength about 2000 MPa
Last updated . Reviewed by Shunfang Engineering Team
Technical specifications
| Construction | PE core / wound steel wire / PE outer jacket |
|---|---|
| Manufacturing method | Extrusion, wire winding, second extrusion |
| Reinforcement | Carbon spring-steel wire, tensile strength about 2000 MPa |
| Diameter range | Up to DN1600 (1.6 m, 63 in) |
| Nominal pressure (PN) | 0.4–2.5 MPa standard (4–25 bar); 3.0 MPa (30 bar, 435 psi) by project reviewThe class available depends on diameter |
| Material | High-molecular-weight PE base with modified PE bonding material |
| Standard | T/CWEC 10-2019 |
| Identification | Blue stripes |
| Jointing | Butt fusion, end-face electrofusion, electrofusion sleeve, double-seal sleeve |
Construction and manufacturing
- Extrude the PE core pipe.
- Wind steel wire around the core.
- Extrude the PE outer jacket over the wire.
Five dedicated reinforced-PE-composite (RPEP) lines with more than 30 die sets cover DN110–DN800.
DN450 RPEP production equipment at the Shunfang factory 
Steel-wire-reinforced HDPE pressure pipe fitting detail
Materials
- High-molecular-weight PE base forms the flow passage and the composite base.
- Carbon spring-steel wire reinforces the wall; tensile strength about 2000 MPa.
- Modified PE bonding material joins the layers; interlayer peel strength above 400 N/cm.
Sizes and ratings
Scroll sideways to see all columns
| Nominal diameter dnmm | Min. average inside diametermm | PN 0.4 MPamm | PN 0.6 MPamm | PN 0.8 MPamm | PN 1.0 MPamm | PN 1.6 MPamm | PN 2.0 MPamm | PN 2.5 MPamm |
|---|---|---|---|---|---|---|---|---|
| 50 | 45 | — | — | — | 2.1 | 2.5 | 2.8 | 3.2 |
| 63 | 58 | — | — | 2.2 | 2.4 | 2.7 | 3.0 | 3.4 |
| 75 | 69 | — | 2.5 | 2.6 | 2.7 | 3.0 | 3.2 | 3.6 |
| 90 | 83 | — | 3.0 | 3.0 | 3.1 | 3.4 | 3.6 | 3.9 |
| 110 | 102 | — | 3.6 | 3.6 | 3.7 | 4.0 | 4.2 | 4.4 |
| 125 | 116 | — | 4.0 | 4.0 | 4.1 | 4.4 | 4.6 | 4.8 |
| 160 | 150 | — | 4.8 | 4.5 | 4.9 | 5.4 | 5.6 | 5.8 |
| 200 | 176 | — | 4.0 | 4.8 | 5.0 | 5.5 | 6.0 | 6.5 |
| 225 | 198 | — | 4.0 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 |
| 250 | 220 | 4.0 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 8.0 |
| 280 | 247 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 8.0 | 9.0 |
| 315 | 278 | 5.5 | 6.0 | 6.5 | 7.0 | 8.0 | 9.0 | 10.0 |
| 350 | 308 | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 |
| 400 | 353 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| 450 | 397 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 |
| 500 | 441 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 16.0 |
| 560 | 494 | 11.0 | 12.0 | 13.0 | 14.0 | 15.5 | 17.0 | 18.5 |
| 630 | 556 | 12.0 | 13.0 | 14.0 | 15.0 | 17.0 | 19.0 | 21.0 |
| 710 | 626 | 13.0 | 14.0 | 15.5 | 17.0 | 19.0 | 21.0 | 23.0 |
| 800 | 706 | 14.0 | 15.0 | 17.0 | 19.0 | 21.0 | 23.0 | 25.0 |
| 900 | 794 | 15.0 | 16.0 | 18.0 | 20.0 | 22.0 | 24.0 | 28.0 |
| 1000 | 882 | 16.0 | 17.0 | 19.0 | 21.0 | 23.0 | 25.0 | 30.0 |
| 1200 | 1059 | 18.0 | 19.0 | 21.0 | 23.0 | 25.0 | 27.0 | — |
| 1400 | 1235 | 20.0 | 21.0 | 23.0 | 25.0 | 27.0 | 29.0 | — |
| 1500 | 1324 | 21.0 | 22.0 | 24.0 | 26.0 | 28.0 | 31.0 | — |
| 1600 | 1412 | 22.0 | 23.0 | 25.0 | 27.0 | 29.0 | 33.0 | — |
— not available in this specification
Applications
- Raw Water TransmissionReservoir and river source lines to the treatment plant
- Municipal Water SupplyUrban trunk mains and regional supply schemes
- Industrial & Cooling Water SupplyProcess and cooling water for plants and industrial parks
Features and benefits
- Steel wire carries the hoop stress, giving standard pressure classes up to 2.5 MPa.
- Polyethylene inside and out: a corrosion-resistant flow path with no exposed steel.
- Interlayer peel strength above 400 N/cm.
- Four jointing methods to suit diameter and site.
- The pipe stays flexible along its length, which helps on curved routes.
Jointing and installation
Butt-fusion welding
Both pipe ends are prefabricated with thickened PE joint ends and butt-fused on site.
End-face electrofusion
Resistance wires embedded in the PE joint end faces are energised on site to fuse the two faces.
Electrofusion sleeve
A PE sleeve with embedded heating wire receives the two prepared pipe ends.
Double-seal sleeve
Two sealing rings are compressed between pipe and sleeve; no power is needed.
Standards and quality
- T/CWEC 10-2019Reinforced PE composite pipe · Product standard
- CJ/T 427-2013Reference standard
- CJ/T 323-2015Reference standard
- GB/T 32439-2015Reference standard
Certified management systems
- ISO 9001:2015
- ISO 14001:2015
- ISO 45001:2018
Project references
| Project | Location | Specification |
|---|---|---|
| Linyi No.2 Reservoir water line | Dezhou, Shandong | DN800/DN900 · 1.0/1.6 MPa · 43 km |
| Congjiang Luoguan water line | Congjiang, Guizhou | DN1000 · 1.6 MPa · 30 km |
| Fengdu water-supply line | Fengdu, Chongqing | DN1000 · 1.25 MPa · 20 km |
| Guan County 2021 comprehensive treatment project | Liaocheng, Shandong | DN1400 · 1.0 MPa |
| Beijing Fangshan water line | Fangshan, Beijing | DN315/DN400 · 1.6 MPa · 80 km |
| Zhangqiu Yunhu water plant, phase 1 | Jinan, Shandong | DN315–DN800 · 1.0/2.0 MPa · 20 km |
| Sichuan water-supply pipeline | Sichuan | DN1000/DN600 · 1.0 MPa · 18 km |
| Guizhou rural water-supply integration | Guizhou | DN700 · 0.8 MPa · 12 km |
| Hunan rural water-supply integration | Hunan | DN600 · 1.0/1.6 MPa · 25 km |
| Datong water-supply project | Datong, Shanxi | DN500 · 1.0 MPa · 40 km |
| Shanxi coal-mine water supply | Shanxi | DN400 · 1.0 MPa · 60 km |
| Beijing residential water pipeline | Beijing | DN315 · 1.6 MPa · 50 km |
| Hebei water-supply project | Hebei | DN315 · 1.0 MPa · 30 km |
| Mianyang Xinyong water transfer | Mianyang, Sichuan | DN200 · 1.6 MPa · 20 km |
| Hebei contract water-saving project | Hebei | DN160 · 1.6 MPa · 15 km |
| Chiping water-source replacement | Liaocheng, Shandong | DN630 · 1.6 MPa · 5.5 km |
Linyi No.2 Reservoir water lineDN800/DN900 · 1.0/1.6 MPa · 43 km 
Congjiang Luoguan water lineDN1000 · 1.6 MPa · 30 km 
Fengdu water-supply lineDN1000 · 1.25 MPa · 20 km 
Guan County 2021 comprehensive treatment projectDN1400 · 1.0 MPa 
Beijing Fangshan water lineDN315/DN400 · 1.6 MPa · 80 km 
Zhangqiu Yunhu water plant, phase 1DN315–DN800 · 1.0/2.0 MPa · 20 km 
Sichuan water-supply pipelineDN1000/DN600 · 1.0 MPa · 18 km 
Guizhou rural water-supply integrationDN700 · 0.8 MPa · 12 km 
Hunan rural water-supply integrationDN600 · 1.0/1.6 MPa · 25 km 
Datong water-supply projectDN500 · 1.0 MPa · 40 km 
Shanxi coal-mine water supplyDN400 · 1.0 MPa · 60 km 
Beijing residential water pipelineDN315 · 1.6 MPa · 50 km 
Hebei water-supply projectDN315 · 1.0 MPa · 30 km 
Mianyang Xinyong water transferDN200 · 1.6 MPa · 20 km 
Hebei contract water-saving projectDN160 · 1.6 MPa · 15 km 
Chiping water-source replacementDN630 · 1.6 MPa · 5.5 km
Photos
Butt-fusion equipment used for reinforced polyethylene pipe 
Joined HDPE pressure pipeline along a project route 
DN630 pressure pipe prepared for pullback installation 
Trench installation of a DN500 water-supply pipeline 
Large-diameter Shunfang water-transfer pipeline under construction 
Flexibility, impact and corrosion resistance 
Pressure duty and hoop reinforcement 
Integrated composite layers 
Spiral-wound manufacture 
Longitudinal flexibility 
Large-diameter route
Frequently asked questions
What is steel wire reinforced PE composite pipe?
It is a polyethylene pressure pipe with a layer of wound steel wire between an extruded PE core and an extruded PE outer jacket. The steel wire takes the pressure load and the polyethylene forms the flow passage and protective layers.
What diameters and pressure ratings are available?
Up to DN1600 (1.6 m). Standard pressure classes run from 0.4 to 2.5 MPa and the classes available depend on the diameter — see the size table. 3.0 MPa is supplied after project review.
Is it the same as solid-wall HDPE pressure pipe?
No. Steel wire carries the hoop stress; polyethylene forms the flow passage and the protective layers.
How are the pipes joined?
By butt fusion, end-face electrofusion, an electrofusion sleeve or a double-seal sleeve, chosen by diameter, pressure class and site conditions.
What does the DN560 pressure test show?
One pipe held 2.4 MPa for 118 hours against a 1.6 MPa design pressure. It is a single test case, not a rating for every size.
What information do you need for a quotation?
Diameter, design and operating pressure, medium and temperature, line length, connection preference, standard, destination and delivery date.
Compare with Large-Diameter Reinforced PE Pressure Pipe
| Parameter | Steel Wire Reinforced PE Composite Pipe | Large-Diameter Reinforced PE Pressure Pipe |
|---|---|---|
| Construction | PE core / wound steel wire / PE outer jacket | Steel-wire-reinforced, spiral-wound composite |
| Manufacturing method | Extrusion, wire winding, second extrusion | Spiral winding with heat bonding |
| Diameter range | Up to DN1600 (1.6 m, 63 in) | 2.6 m and above; published table to DN5000 |
Above DN1600? See Large-Diameter Reinforced PE Pressure Pipe.
Send us your project parameters
Tell us the diameter, pressure or ring stiffness, quantity and destination. We reply with the next technical step.
Export contact
Michael, Customer Manager
- +86 13609843896
- Phone
- +86 13609843896