GEODRAIN | Perforated drainage pipe
DrainageDescription
The pipe that drains water away from the site — where the membrane ends. KOUVIDIS perforated sub-surface drainage pipe made from specially stabilised, halogen-free HDPE, with a double-walled, ring-stiffened SN4 structure.
The perforation is 360° TP (Totally Perforated), symmetrical along the entire length, with an inflow area >50 cm²/m in accordance with DIN 4262-1 — meaning the pipe collects air from every direction, regardless of how it is positioned in the trench. Ring stiffness SN4 in accordance with EN ISO 9969, type R2 in accordance with DIN 4262-1.
Available in six external diameters from Φ63 to Φ200 mm, in coils of 50 m (Φ63–125) and 25 m (Φ160–200).
Overview
Key Features
Structure & material
- Specially stabilised HDPE, free from halogens and heavy metals
- Double-walled structure — corrugated on the outside, smooth on the inside
- Ring stiffness SN4 (EN ISO 9969)
- Type R2 according to DIN 4262-1
- Colour: black / green
Perforation & collection
- 360° perimeter perforation — TP (Totally Perforated)
- Symmetrical along the entire length, produced using specialised machinery
- Perforation area >50 cm²/m (DIN 4262-1)
Durability
- Rodent-repellent inner wall — European Patent EP2698792
- Resistance to solar radiation: 5 years (ageing stabilisers)
- Chemical and corrosion resistance (ISO 10358)
Where it is used
Technical solutions where this material is used.
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