Inspection manhole for fluid transport installations.

摘要

Inspection manhole for installations such as, for example, a drainage or sewerage installation, of the type comprising an inspection manhole bottom (1) made of a double-walled plastic material with lateral openings (6) for attaching fluid inlets and/or outlets thereto, and one or more risers being fitted onto the inspection manhole bottom, characterised in that the outer lower wall (4) of the inspection manhole bottom (1) is provided with hollows (10) serving as reinforcement ribbing. <IMAGE>