Ductile Iron manhole covers are strong, durable and able to withstand high loading classes for fast moving vehicles in highly trafficked areas, such as main roads and motorways. Conforming to BS EN 124:2015 British standards they are available in the following classes:
A15 - capable of withstanding a 15kN load (1.5 tonnes). Pedestrian areas only.
B125 - capable of withstanding a 125kN load (12.5 tonnes). Car parks and pedestrian areas with very light traffic use.
C250 - capable of withstanding a 250kN load (25 tonnes). Car parks and industrial sites with slow moving traffic.
D400 - capable of withstanding a 400kN load (40 tonnes). Carriageways and hard shoulders.
E600 - capable of withstanding a 600kN load (60 tonnes). Loading areas, docks or aircraft pavements.
F900 - capable of withstanding a 900kN load (90 tonnes). High wheel loads, such as aircraft pavements.