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.).
The absolute reference in manhole covers for durability in intense conditions
KORUM, the D400 roadway manhole cover for periodical inspections and heavy traffic.
Robust, secure and sustainable solutions, designed to facilitate the operation of networks under traffic while reducing nuisances.
Rectangular Access Covers - Robust solutions for heavy traffic, offering optimized access for maintenance of structures.
Rectangular Access Covers - Robust solutions for heavy traffic, offering optimized access for maintenance of structures.
Manhole covers with high performance in leak tightness
Manhole covers for frequent opening
Manhole covers for road traffic lanes
EN 124:2015 is the new version of the European Standard (EN) which governs design, features,& test methods of access covers & gratings.
AFNOR Certification grants the right to use the NF mark to Saint-Gobain PAM Canalisation
Our French teams have won the Ecovadis 2025 gold medal for the 2nd consecutive year.