Description
Product Overview 24 × 20 Dual Wall Drainage Pipe
The ADS 24 × 20 dual wall drainage pipe is a heavyduty, highdensity polyethylene (HDPE) drainage pipe engineered to convey stormwater and groundwater efficiently in residential, commercial, roadway, and infrastructure drainage systems. It consists of a smooth interior wall that promotes high hydraulic flow and a corrugated exterior wall that provides excellent structural strength under soil loads. HDPE material is highly resistant to corrosion, chemical attack, abrasion, and freeze/thaw cycles, offering a longlasting and lowmaintenance alternative to concrete or metal pipe. ADS N12 pipe is available in soiltight, watertight, or plain end joint styles with bellandspigot connections to meet different job specifications and performance requirements.
Key Features
Nominal Diameter: 24 in (internal)
Length: 20 ft per stick (long lengths reduce joints and speed installation)
Material: HighDensity Polyethylene (HDPE) durable, corrosionresistant, chemically inert
Wall Construction: Dual wall smooth interior for efficient gravity flow and corrugated exterior for structural strength
Hydraulic Performance: Smooth interior has low Mannings n (~0.012) for efficient flow capacity
Connection Options: Bell & spigot with soiltight (ST), watertight (WT), or plain end options available
Standards & Approvals: Designed to meet industry standards including AASHTO M294, ASTM F2306, ASTM F2648, and others depending on configuration
Lightweight: Easier to handle and install compared to heavier materials like concrete
Applications: Storm sewer systems, culverts, roadway drainage, large property site drainage, subsurface conveyance, and erosion control
Typical Specifications
| Specification | Details |
|---|---|
| Nominal Diameter | 24 in (internal) |
| Approx. Outside Diameter | ~28 in (typical for ADS dual wall) |
| Length | 20 ft per stick |
| Material | HDPE (HighDensity Polyethylene) |
| Wall Type | Dual wall (smooth interior / corrugated exterior) |
| Joint Options | Bell & spigot (soiltight, watertight), plain end |
| Hydraulic Mannings n | ~0.012 |
| Standards | AASHTO M294, ASTM F2306, ASTM F2648 (varies by model) |
Benefits
Efficient water conveyance: The smooth interior wall helps water flow with minimal resistance and reduces clogging potential.
Structural durability: Corrugated exterior provides strength to withstand soil loads and burial conditions without heavy bedding.
Corrosion resistance: HDPE resist corrosion and chemical attack over long service life.
Reduced installation cost: Lightweight pipe and long 20 lengths reduce handling time and the number of joints required.
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