Description
Key Features
Nominal Diameter: 48 in (internal measurement)
Section Length: 20 ft (long sticks reduce number of joints and speed installation)
Material:
HighDensity Polyethylene (HDPE): corrosionresistant, chemically inert, and durable for underground applications
Dual Wall Construction:
Smooth Interior Wall: promotes efficient water flow with low hydraulic resistance (Mannings n 0.012)
Corrugated Exterior Wall: provides structural strength under soil loads without heavy bedding
Joint/Connection Options:
Bell & Spigot: Soiltight (ST) or Watertight (WT) gaskets available for lowleak joints
Plain End: Allows field coupling with spigot or coupler fittings
Hydraulics: Smooth interior gives high flow capacity and lower clog risk
Industry Standards: Typically designed to meet AASHTO M294, ASTM F2306, ASTM F2648 performance requirements (varies by supplier/model)
Typical Specifications
| Specification | Details |
|---|---|
| Nominal Diameter | 48 in (internal) |
| Approx. Outside Diameter | ~52 in (varies by manufacturer/series) |
| Section Length | 20 ft |
| Material | HDPE (HighDensity Polyethylene) |
| Wall Type | Dual wall smooth interior / corrugated exterior |
| Joint Types | Bell & Spigot (soiltight, watertight), Plain End |
| Mannings n (Hydraulic Flow Efficiency) | ~0.012 |
| Typical Standards | AASHTO M294, ASTM F2306, ASTM F2648 |
Benefits
High Flow Capacity: Large diameter combined with smooth interior wall delivers efficient conveyance for substantial stormwater volumes.
LongTerm Durability: HDPE resists corrosion, abrasion, and chemical exposure for lowmaintenance performance.
Structural Strength: Corrugated exterior resists soil pressures and typical loading conditions without heavy bedding.
Installation Efficiency: 20 ft lengths reduce jointing time, improve alignment, and lower labor costs compared with shorter sections.
Versatile: Suitable for storm drainage, culverts, subsurface conveyance, roadway edge drainage, and large landscape drainage.
Common Applications
Storm Sewer and Stormwater Conveyance: Handles runoff from landscaped sites, commercial developments, and large paved areas.
Culverts: Under roadways, driveways, or paths where high capacity drainage is needed.
Subsurface Drainage: For commercial sites or large open spaces requiring efficient groundwater removal.
Major Drainage Infrastructure: Works in conjunction with catch basins, manholes, and larger drainage systems.
Erosion and Surface Water Control: Suitable for channels, embankments, or slope drainage applications.
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