CORRUGATED PIPE AND FITTINGS

Double-walled high strength structure - lightweight, durable and long-lasting infrastructure solutions
CORRUGATED PIPES
Corrugated pipes are infrastructure pipes that offer high strength and lightness together, with smooth inner surface and ring-shaped outer surface. Thanks to this double-walled structure, they are both resistant to ground loads and extremely easy to transport and install.
Corrugated pipes that can be produced from HDPE, PP or PVC raw materials; are easily used in sewage, domestic and industrial waste removal; rainwater discharge and drainage lines. Thanks to their flexible structure, they are not affected by earthquakes and seismic movements.
Corrugated Pipes ensure trouble-free operation of infrastructure pipe systems with a 50-year working life.

MECHANICAL STRENGTH AND CLASSES

Corrugated pipes are classified according to their ring stiffness value:

ClassRigidityApplication Area
SN 44 kN/m²Drainage lines under light load
SN 88 kN/m²Highway, urban infrastructure, heavy traffic areas
SN 12.5 and above≥ 12.5 kN/m²Railway and regions exposed to high fill loads
ADVANTAGES

  • Easy transport and installation thanks to lightweight structure

  • High chemical and corrosion resistance

  • Long life (50 years and above)

  • Resistance to settlement and ground movements thanks to flexible structure

  • Environmentally friendly production with low energy consumption

  • Manufacturing possibility in wide diameter ranges (DN 100 – DN 3000 mm)

    • USAGE AREAS

    Rainwater and surface drainage systems

    Wastewater collection lines

    Agricultural drainage systems

    Industrial wastewater infrastructure

    Highway, tunnel and culvert drainage

    Sea discharge lines (spiral wound types)

    Temporary or permanent infrastructure crossings

    CONNECTION TYPES

    Corrugated pipes are installed with different connection systems according to diameter and production type:

  • Welded system

    (HDPE spiral wound pipes)

  • Flanged connections

    (for large diameter systems)

  • Socket/female-male threaded connections

    (in PVC systems)

    • All connection systems are made leak-tight with elastomer gaskets compliant with EN 681-1 standard.

    FITTING TYPES

    Special fittings are used at points where direction change, line junction, level difference or equipment connection is required in corrugated pipe systems. These parts ensure the leak-tightness, strength and hydraulic continuity of the system.

    Elbows

    Produced at 15°, 30°, 45°, 60°, 90° angles. Welded or socket type.

    Tees

    In equal (Equal Tee) or reducer (Reducer Tee) types, provides leak-tight connection of main line with side branch.

    Sockets

    Enables corrugated pipes to be joined to each other with gaskets. Gasketed or electrofusion types are available in PVC and HDPE systems.

    Reducers

    Used in joining corrugated pipes of different diameters. Produced in concentric or eccentric type.

    Blind Caps

    Used at line ends or temporary closures. Can be welded or gasketed type.

    Manhole Connection Adapters

    Provides leak-tightness in connection of corrugated pipes to manhole or concrete structure. EPDM gasketed or flanged types are available.