Composite manholes are unique in design. Unlike traditional manhole covers, they are made with a composite material. This material has zero scrap value; therefore, it is not a commodity that one would steal and sell. Composite covers are also lightweight. Compared to typical covers that weigh 100 to 200 pounds, composite covers weigh up to 85% less than traditional covers. This reduces the amount of risk should a manhole event occur. Finally, composite manholes are durable and are able to last for as long as 30 years without maintenance.
Ductile Iron Manhole Cover and Grating
| EN124:1994
| Material: GGG500-7
|
Class
| Application
| Dimension (Frame mm)
|
A15
| Pedestrians, Pedal Cyclists
| Dia760
|
B125
| Footways, Pedestrians, Car parks
| 290*290, dia800 ...
|
C250
| Kerbside channel of roads
| 700*700, 600*800 ...
|
D400
| Road, hard shoulders etc.
| 850*850, 920*920 ...
|
E600
| Docks, aircraft pavements etc.
| as per your demands
|
F900
| Aircraft pavements etc.
| as per your d
|
