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HDPE Double Wall Corrugated Pipe DN200-400
HDPE双壁波纹管 DN200-400
Product Introduction
HDPE double wall corrugated pipes combine a corrugated outer wall for ring stiffness with a smooth inner wall for hydraulic efficiency. Ideal for municipal sewage, road drainage, and farmland drainage.
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Specifications
| Material | HDPE |
| Size | DN200-400 |
| Stiffness | SN4/SN8 |
| Joints | Bell with seal ring |
| Standard | ISO 9969, GB/T 19472 |
| Color | Black |
Key Features
- High ring stiffness, lightweight
- Smooth inner wall, high flow
- Flexible, resists ground movement
- Corrosion-proof, 50-year life
Applications
Quality & Certification
ISO 9969 ring stiffness tested. GB/T 19472 compliant.
FAQ
Q1: MOQ?
1 container.
Q2: Lead time?
20-30 days.
Q3: Stiffness?
SN4/SN8.
Q4: Payment?
T/T 30%.
Q5: Seals?
EPDM rubber rings.
Q6: Fittings?
Bends, tees, reducers.
Q7: Certification?
ISO, CE.