Dimensional specifications, pressure classes and engineered jointing for specialized infrastructure service.
PE Sewage, Corrugated & Drainage Pipes — Outside diameter 630 mm
Three Distinct Engineering Constructions in Sewerage & Drainage
This category consolidates three distinct structural pipe profiles engineered for municipal sewage and groundwater management: 1) Double-Wall Corrugated Pipe (Product P004) featuring an external corrugated profile and a smooth internal waterway for gravity networks; 2) Solid-Wall PE Sewer Pipe (Product P005) for low-head or welded effluent lines; 3) Perforated Corrugated Drainage Pipe (Product P006) supplied in slotted coils for subsurface water collection.
Matching the structural pipe design to the hydraulic regime (free-surface gravity flow versus pressurized discharge) forms the core engineering decision among these three systems.
Technical Comparison: Double-Wall Corrugated vs Solid-Wall Sewer
Double-Wall Corrugated Pipe (P004) is sized by inside diameter (ID 150 to 1200 mm) across standard ring stiffness classes SN4 (4 kN/m²), SN8 (8 kN/m²), and SN16. The corrugated exterior geometry provides high sectional moment of inertia without excess material weight, sustaining heavy traffic loads. Jointing relies on integral sockets or couplers with elastomeric gaskets.
Conversely, Solid-Wall Sewer Pipe (P005) is sized by outside diameter (OD 110 to 1200 mm) per EN 12666 and ISO 4427 in SDR 41, SDR 33, and SDR 26. These solid pipes are joined by butt fusion, forming continuous, monolithic runs essential for industrial effluent lines or applications demanding total seal integrity against root intrusion and exfiltration.
Perforated Drainage Coils & Geotextile Envelope Filters
Perforated Drainage Pipe (Product P006) is produced to DIN 1187 and EN 13476 in outside diameters from OD 50 to 200 mm in coils of 50 m, 100 m, and 200 m. The single-wall corrugated structure delivers outstanding handling flexibility, while engineered slots located in the corrugation valleys allow rapid groundwater intake.
These pipes are supplied either bare or wrapped in a synthetic fiber or geotextile filter envelope. The geotextile filter prevents fine silt and soil particles from penetrating and clogging the internal waterway, ensuring prolonged drainage performance in agricultural lands, civil retaining walls, and highway sub-bases.
PE Sewage, Corrugated & Drainage Pipes — Frequently Asked Questions
What is the difference between SN4 and SN8 ring stiffness classes?
SN represents nominal ring stiffness in kN/m²; SN4 is suited for standard shallow burial without heavy traffic, whereas SN8 and SN16 are specified for deep trenches and heavy vehicular surface loading.
Why are corrugated pipes designated by internal diameter?
In gravity flow hydraulics, flow discharge capacity is strictly a function of the internal waterway area; hence corrugated sewer pipes are cataloged by inside diameter per EN 13476-3.
What is the function of the geotextile wrap on drainage pipes?
The geotextile envelope acts as a physical filter preventing fine soil particles and silt from infiltrating the inlet slots, eliminating internal sedimentation and clogging.
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