Double-seal socket
No power needed; small longitudinal movement
PRESSURE PIPE SYSTEM / 03
Large-Diameter Reinforced PE Pressure Pipe
Steel-wire-reinforced, spiral-wound composite construction for oversized pressure-pipe projects. Diameter, pressure class, jointing and installation are defined through project-specific engineering review.
PRODUCT DEFINITION
A separate route for extra-large pressure duty.
This system is not the same as extruded solid-wall PE100 pipe or gravity-flow structured-wall pipe. Its reinforced spiral-wound construction is reviewed against the specific pressure, diameter and installation requirements of a project.
What to define before selection
- Application, conveyed medium and flow
- Nominal diameter and dimensional basis
- Design and operating pressure
- Pipe length, quantity and route constraints
- Connection and installation method
- Applicable standard, drawings and inspection scope
Final dimensions and performance must be confirmed against verified manufacturing and design limits.
Send project parameters ↗Application range: pressure-pipe projects above 2.6 m in diameter.
WOUND CONSTRUCTION
Stiffness from steel, sealing from PE
- High-strength carbon spring-steel wire spiral-wound between polymer PE layers, heat-pressed (pressure-pipe grades; confirm the wire grade for the specified product)
- Wire tensile ≈2000 MPa, modulus ≈200 GPa (≈300× PE)
- Copper-plated, PE-wrapped wire resists delamination; peel strength above national standard
ECONOMICS
The 30% large diameters save
Figures from published factory materials; confirm against the current quotation.
| Item | Reinforced wound PE | Solid PE |
|---|---|---|
| DN2.6m equipment | ≈RMB 6 million | ≈RMB 30 million |
| Efficiency | +30% | |
| DN2.6m / 1.0 MPa unit price | ≈9,000/m | ≈13,000/m |
FEASIBILITY CONTRAST
Against conventional pipe
| Pipe | Max size | Weakness |
|---|---|---|
| PCCP / DIP | ≈3 m | Costly, poor corrosion resistance |
| Steel | 5m | Needs lining/coating; slow site welding |
| FRP | — | Impact-sensitive, ages |
| Reinforced wound PE | DN4000 | Corrosion-free PE with multiple joint options below |
Note: DN4000 is the standard wound-line range; larger diameters follow a project-specific route — confirm for the specified diameter.
LARGE-DIAMETER JOINTING
Five routes by diameter
DN1000+ electrofusion band
Banded along the rib groove, clamped and fused
PE-end butt fusion
Joint wall 3× the pipe body or more
Electrofusion sleeve
Large-bore wiring rigs; 1–2 km installed per day
Double-seal sleeve
A compressed sleeve with two sealing rings provides dual sealing
PROJECT REFERENCES
Matching references
Selected cases matching this product range; the full table is on the Projects page. Photos show project construction.
Indonesia aquaculture seawater circulation
DN2400 · 1.0 MPa · 2 × 600 m
Guan County 2021 comprehensive treatment project
DN1400 · 1.0 MPa
Linyi No.2 Reservoir water line
DN800/DN900 · 1.0/1.6 MPa · 43 km
Fengdu water-supply line
DN1000 · 1.25 MPa · 20 km
OVERSIZE LOGISTICS
If it cannot ship, build it on site
Above 3 m and up to 6 m-class pipe, on-site production can be assessed to break transport limits. On-site production →
Large-diameter water-supply pipe
Larger diameters share the reinforced PE family
The water-supply reinforced PE composite pipe range extends from DN50 to DN5000. Available wall-thickness and pressure combinations vary by diameter.
Download the English brochure (PDF) ↓ · Download centre →
Pressure classes vary by diameter
DN1800 and DN2400 have wall values at 0.4–1.6 MPa; DN3200 at 0.4–1.0 MPa; and DN5000 at 0.4–0.8 MPa. Select the corresponding wall and joint configuration for the project.
Connection is part of the selection
Prepared PE ends support butt fusion or electrofusion, with sleeve options also available. Choose the method around pipe-end construction, lifting and site access.
Configure for the project
For large-diameter water projects, select the diameter, pressure class, wall, connection and delivery plan together.
PROJECT REFERENCE
DN2400 seawater circulation in Indonesia.
See the completed aquaculture seawater-circulation project and its installation approach as a project reference; do not use it as a universal product specification.