Indus Industrial Group provides heavy-duty Double-Wall Corrugated HDPE Gravity Sewer Pipes engineered in nominal internal diameters from DN/ID 150 to DN/ID 1200 with certified structural ring stiffness classes SN8 (≥8 kN/m²) and SN10 according to EN 13476-3 and ISO 21138. Co-extruded with an annular corrugated black outer wall for superior crush resistance under highway wheel loads and a smooth yellow/blue inner wall for frictionless hydraulic flow, these pipes are designed for municipal wastewater collectors, industrial gravity outfalls, and deep culvert storm sewers across Iraq. Fitted with integrated in-line sockets and high-integrity EPDM elastomeric sealing rings, they deliver flexible, leak-tight sewer strings immune to biogenic sulfuric acid corrosion.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standard | EN 13476-3 / ISO 21138 / DIN 16961 / ASTM F894 |
| Internal Diameter Envelope | DN/ID 150 to DN/ID 1200 (Nominal Inside Diameter) |
| Ring Stiffness (ISO 9969) | SN8 (≥ 8.0 kN/m²) / SN10 (≥ 10.0 kN/m²) |
| Raw Material Compound | Virgin PE100 High-Density Polyethylene Resin |
| Profile Structure | Corrugated Annular Exterior / Smooth Cylindrical Interior |
| Jointing Mechanism | Integral Welded/Molded Socket with EPDM Gasket (EN 681-1) |
| Impact Resistance | TIR ≤ 10% at 0°C (EN 744 / ISO 3127) |
| Ring Flexibility | Passes 30% diametric deflection without delamination (ISO 13968) |
| Laying Length | 6.0 meters effective length per pipe segment |
| Hydraulic Roughness | Manning n = 0.009–0.010 / Colebrook-White k = 0.05 mm |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Corrugated Sewer Pipes |
Municipal gravity sanitary sewage trunk collectors, highway and roadway under-drainage culverts, industrial effluent discharge pipelines, airport runway stormwater networks, and deep municipal storm outfall systems across Baghdad, Erbil, Basra, Najaf, Karbala, and Kirkuk.
Double-Wall Corrugated High-Density Polyethylene (HDPE) Pipes represent the modern engineering standard for large-diameter municipal sanitary gravity sewers, industrial effluent transmission, and regional stormwater trunk lines across Iraq. Governed by EN 13476-3 (Type B) and ISO 21138 standards, these pipes are produced using 100% virgin PE100 or high-molecular-weight polyethylene compound. The dual-wall architecture combines an exterior profiled annular corrugation that distributes static earth and dynamic traffic loads uniformly around the pipe circumference, with an ultra-smooth interior liner (Manning n=0.009–0.010) that guarantees high discharge velocities and prevents sediment settlement even at minimal pipeline slopes.
Mechanically, our corrugated HDPE sewer pipes are certified for ring stiffness classes SN8 (≥8 kN/m²) and SN10 (≥10 kN/m²) according to ISO 9969. In high-traffic Iraqi infrastructure corridors like Highway 1, municipal ring roads, and industrial park arteries, this elevated stiffness easily withstands heavy truck axle loading (AASHTO H-20 and HS-25) and deep trench burial depths exceeding 6 to 8 meters without dangerous diametric deflection or pipe wall bucking. The integrated bell socket is precision-formed directly on the pipe barrel and fitted with an oil-resistant EPDM gasket, providing an airtight, watertight joint that eliminates wastewater exfiltration and costly groundwater infiltration.
In Iraq's challenging climate, the pipe material provides total resistance to biogenic sulfuric acid (H2S attack), high salinity, and aggressive industrial effluents spanning pH 1.5 to pH 14.0. Staged at our Erbil Heavy Plant Yard, Baghdad Central Logistics Depot, and Basra Port Hub, Indus supplies complete pipeline lengths (6.0m standard), companion corrugated inspection chambers, lateral saddles, and technical field installation guidance.
Corrugated HDPE pipes achieve their load-bearing capacity through soil-pipe interaction. The exterior annular corrugations interlock with properly compacted granular backfill, distributing dynamic wheel loads into the surrounding soil trench. In Class SN8, they safely support highway traffic loads exceeding 60 tons.
Yes. The outer corrugated wall is compounded with 2.0% to 2.5% finely dispersed carbon black, providing complete UV resistance during extended outdoor staging in temperatures up to +55°C without material embrittlement or structural degradation.
Yes. Indus Industrial Group supplies prefabricated HDPE rotationally molded and corrugated inspection manholes, electrofusion saddles, and flexible rubber adaptors from our Erbil, Baghdad, and Basra facilities for complete turnkey pipeline execution.
