The INTERHOL manholes are produced from polyethylene LLDPE; MDPE ;HDPE and polypropylene PP. According to the standard EN 13598 – 1 can be easily recycled and thermally treated. For control manholes are used manholes with inside diameter 400 mm ( DN/ID 400), 800 mm DN/ID 800, according to the standard EN 13598-1. For easy and constant access to the people in manhole according EN13598-2 standard requirements have DN/ID 1000mm.
Interhol Cone Cover
The Interhol cover is produced in dimensions ID800 and ID1000. To satisfy the constructor needs cone cover is available in 3 types:
- Low cover( CAP LF/1 )
- High cover ( CAP DM/1 )
- High cover with extension ( CAP DM/2 )