Class D400

Manhole covers Class D400 - Group 4

Carriageways of roads - including pedestrian streets, hard shoulders and parking areas for all types of road vehicles.

Manhole covers for heavy volume traffic

Heavy or intense traffic is defined as a high number of vehicles, authorised speeds on major urban roads and consistently heavy vehicular traffic at a given time. The PAM manhole covers designed for this type of traffic are strong, durable and resistant thanks to the excellent mechanical properties of ductile cast iron. 

Manhole covers for normal volume traffic

Normal or medium traffic is defined as an inconsistent number of vehicles, stable urban speeds and a light volume of vehicles at a given time, although there may be some heavy traffic. The manhole covers designed by Saint-Gobain PAM for this type of traffic are strong, durable and resistant thanks to the excellent mechanical properties of ductile cast iron.

Manhole covers for low volume traffic

Low volume traffic is defined as limited speed and occasional truck traffic (deliveries, etc.).