Description
Product Overview
This category of 12 × 20 HDPE (highdensity polyethylene) dual wall drainage pipe is engineered to convey groundwater and stormwater efficiently and durably in residential, commercial, and infrastructure drainage systems. Dual wall pipe features a smooth interior flow surface for high hydraulic capacity, and a corrugated exterior for structural strength under soil loads. ADS N12 dual wall pipe is lightweight and resistant to corrosion, chemicals, and abrasion, making it a longlasting, lowermaintenance alternative to concrete or metal pipe products. Depending on the model, options include solid or perforated pipe, soiltight or watertight bellandspigot joints, and plain end configurations for use with couplers. This sizing is ideal for storm drain runs, French drains, yard and landscape drainage, and subsurface infrastructure applications.
Key Specifications (Typical for 12 Dual Wall Pipe)
Nominal Size & Length
Nominal Diameter: 12 in
Length per Stick: 20 ft (long lengths reduce joints and speed installation)
Material & Construction
Material: HighDensity Polyethylene (HDPE) durable and resistant to corrosion, chemicals, and abrasion
Wall Type: Dual wall with smooth interior and corrugated exterior optimized for flow and strength
Joint / Connection Options
Bellandspigot (soiltight or watertight): Provides secure, lowleak connections
Plain end (for use with couplers): Allows flexible field assembly
Performance Standards
Meets AASHTO M294 (dual wall corrugated pipe standard) and ASTM F2648 for hydraulic and structural performance
Hydraulics & Flow
Smooth interior offers a low resistance to water flow (Mannings n 0.012 typical) effective for gravity drainage systems
Typical Applications
Stormwater conveyance and surface runoff drainage
French drain systems under lawns and landscapes
Foundation and perimeter drainage
Culverts and roadway drainage
Landscape and low spot drainage
Benefits
Efficient water movement: Smooth interior minimizes clogging potential and increases flow capacity.
Long service life: HDPE resists environmental degradation, corrosion, chemicals, and freezethaw cycles.
Easy installation: Lightweight pipe in 20 lengths reduce joints and labor.
Versatile configurations: Solid or perforated options for conveyance or infiltration (French drains).
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