Gravity-flow and buried structural duty. Select around flow, ring stiffness, burial and loading.
PE Structured-Wall Pipes · Without Steel-Wire Reinforcement
Spiral-Wound PE Structured-Wall Pipe
A spiral-wound polyethylene structured-wall pipe without steel-wire reinforcement for gravity drainage, sewerage, stormwater and project-specific marine applications.
Wall profiles vary by product specification.Polyethylene construction without steel-wire reinforcement. Contact us for the wall profile and dimensions of the specified product.
The same pipe may serve different applications when its pressure rating, dimensions and joints meet the project requirements.
PRODUCT DEFINITION
What the product is.
This product family uses a polyethylene structured wall without steel reinforcement. Hydraulic flow, ring stiffness, burial, soil, groundwater, external loading, jointing and installation quality must be reviewed together.
For non-pressurized drainage and sewerage.
- Gravity-flow drainage or sewer duty
- A non-metallic structured wall is preferred
- Ring stiffness and buried conditions are defined by the project
Specifications & Availability
Contact Shunfang for confirmed wall profiles, diameters, ring stiffness, applicable standards and compatible joints.
FOUR GENERATIONS
From first-generation hollow-wall to fourth-generation RPEP
From manufacturing to intelligent manufacturing across four product generations; the fourth-generation reinforced PE composite pipe carries full independent IP.
Gen 1 · HDPE hollow-wall wound Type A
The smooth-wall gravity-flow starting point
Gen 2 · Double-flat-wall steel-plastic wound pipe
2010
Gen 3 · PE structured-wall pipe
2013 / 2017
Gen 4 · Reinforced PE composite pipe (RPEP)
2019 · independent IP
MATERIALS & STANDARDS
PE80/PE100, international benchmarks
- PE80/PE100 high-molecular-weight PE: flexible, corrosion- and fatigue-resistant
- Benchmarked to DIN 16961 / ASTM F2720 for designer review (benchmarks, not certifications)
- Steel-reinforced (Type B) systems reach 6 m — a domestic record diameter
What smooth walls mean hydraulically
Low roughness, no scaling; adjustable wall with constant bore preserves flow capacity. Measured examples: DN1500 wall 6.5 mm/stiffness 17.23, DN1000 wall 5.7–5.8 mm/19.72, DN600 wall 4.0 mm/20.22 (kN/m²).
PROJECT REFERENCES
Matching references
Drainage cases matching this product range; the full table is on the Projects page. Photos show drainage construction.
Jinan sewer-stormwater separation
DN300–DN600 · SN12.5 · 30 km
Tashan South Road Type-A supply
DN400–DN1400
Rizhao Port project
DN1600
Shijiazhuang north drainage retrofit
DN2600
APPLICATION ROUTES
One pipe. Multiple applications.
The application page identifies the duty; verified engineering inputs determine whether this product or its reinforced counterpart should be reviewed.
Stormwater drainage
Confirm flow, diameter, stiffness, burial, ground and jointing conditions.
Gravity sewer
Confirm flow, diameter, stiffness, burial, ground and jointing conditions.
Culverts and flood control
Confirm flow, diameter, stiffness, burial, ground and jointing conditions.
Project-reviewed marine outfall
Confirm flow, diameter, stiffness, burial, ground and jointing conditions.
FITTINGS AND JOINTING
The connection belongs to the system.
A product may support more than one connection route. Compatibility must be confirmed by structure, diameter, pressure or sealing duty, equipment and site conditions.
Spigot-and-socket joint with elastomeric seals
Request the applicable procedure and confirmed product range.
Electrofusion band joint
Request the applicable procedure and confirmed product range.
Extrusion welding where approved
Request the applicable procedure and confirmed product range.
Need another connection route?
Discuss your project →Share the diameter, pressure and site conditions for a compatibility review.
STRUCTURED-WALL PIPE SYSTEMS
Compare the steel-wire-reinforced option.
Compare both constructions against the same project requirements. Reinforcement alone does not determine the pressure rating or installed performance.
REINFORCED OPTIONSteel-Wire-Reinforced Spiral-Wound PE Structured-Wall PipeCompare product structure →
PROJECT INPUTS
Confirm the product from the duty.
Send the application, medium, diameter basis, pressure or ring stiffness, installation conditions, connection, quantity, standard and destination.