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PVC-U Axially Hollow Wall Pipe
Lightweight Structural-Wall Piping with High Ring Stiffness for Drainage & Sewer Systems
Diameter Range:DN200–DN800
Pressure:SN8-SN12.5
Connection:Solvent Socket · Elastomeric Sealing Ring · Customized
Standards:ISO 1452 · ISO 4435 · EN 1401 · BS EN ISO 15493
Applications:Pressurized Sewage · Drainage · Rainwater · Low-Pressure Irrigation & Drainage
Customization:Diameter · Pressure Rating · Connection · Color
Product Description:
| project | Technical specifications | Test method | |
| Density, kg/m³ | 1350-1550 | GB/T 1033.1-2008 Method A | |
| Longitudinal retraction rate% | ≤5 | GB/T6671 | |
| State after heating | No delamination, no cracking. | GB/T8802 | |
| Resistance to falling-weight impact(TIR)/% | Zero pressure / Pressure-free | ≤10 | GB/T18477.3 |
| Low pressure | ≤5 | ||
| Circumferential flexibility | No cracks in the inner, outer, or connecting reinforcement bars. | GB/T9647 | |
| Ring stiffness/（kN/m2） | SN4 | ≥4 | GB/T9647 |
| SN6.3 | ≥6.3 | ||
| SN8 | ≥8 | ||
| SN10 | ≥10 | ||
| SN12.5 | ≥12.5 | ||
| Creep ratio | ≤2.5 | GB/T18042 | |
Product Highlights
High Ring Stiffness — Hollow structural-wall design provides strong resistance to external loads.
Lightweight Construction — More than 30% lighter than solid-wall pipes at comparable ring stiffness.
Material Efficient — Reduced material consumption without compromising structural performance.
Reliable Flexible Jointing — Elastomeric sealing ring connection provides secure sealing and accommodates installation movement.
Smooth Internal Surface — Low flow resistance and strong hydraulic performance.
Lower Project Cost — Reduced transportation, handling and installation costs for large-diameter drainage projects.
Applications
Municipal Sewage · Pressurized Sewage · Rainwater Drainage · Buried Drainage Networks · Agricultural Low-Pressure Irrigation & Drainage · Large-Diameter Drainage Systems
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