INOVA produces a wide range of double wall corrugated pipes for various uses and with unrivaled qualities.
INOVA produces a wide range of double wall corrugated pipes from HDPE for various applications such as:
- Rain waters and
HDPE double wall corrugated pipes are made for underground systems without pressure and are manufactured from two layers. The inner layer is smooth and light blue, grey or orange, to facilitate visual inspection, while the outer layer is corrugated and black with four identification stripes that distinguish the nature of the use of pipes.
The system (pipe and socket) is in full compliance with the standard EN 13476, with an outer nominal diameter DN / OD mm, stiffnes grade of the ring SN4 / 8 (equal to kN / square meters) as required by the standard EN ISO 9969 .