Description
Product Overview 60 × 20 HP Dual-Wall Drainage Pipe
The 36 × 20 HighPerformance (HP) dual-wall drainage pipe is engineered for heavy-duty stormwater, culvert, and subsurface drainage applications where strength, flow capacity, and durability are essential. HP models typically use enhanced HDPE or polypropylene (PP) resin with a smooth interior for efficient water flow and a corrugated exterior for structural strength. Watertight bell-and-spigot joints reduce infiltration and exfiltration risk, making the pipe suitable for deeper burial or heavy load areas.
Key Specifications
| Specification | Details |
|---|---|
| Nominal Diameter | 60in (internal) |
| Approx. Outside Diameter | ~62 |
| Length | 20 ft per section |
| Material | High-Performance HDPE or Polypropylene |
| Wall Type | Dual wall (smooth interior / corrugated exterior) |
| Joint Style | Bell & Spigot (soil-tight or watertight) or Plain End |
| Hydraulic Performance | Smooth interior (Mannings n ~0.012) |
| Standards | ASTM D3212, ASTM F2881, AASHTO M330 (HP models meet watertight performance) |
Benefits
High flow capacity with smooth interior to reduce clogging
Superior structural strength with corrugated exterior for load resistance
Watertight joints meet ASTM standards for storm sewer applications
Lightweight and easier to handle than concrete alternatives
Corrosion, chemical, and freeze/thaw resistant material
Typical Applications
Municipal or residential storm sewer systems
Roadway or driveway culverts
Large property subsurface drainage
Detention/retention and industrial drainage systems
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