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 demands |
Ductile iron manhole covers are generally divided into round and square shapes. In urban road administration, round shapes are generally used because round manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. The use of round shapes is mainly due to the fact that the length of each diameter of the round manhole cover passing through its center is the same. In this way, if the manhole cover is rolled up by a passing vehicle, no matter how it is rolled up, its diameter will be slightly wider than the wellhead below, and the manhole cover will not fall into the wellhead.
Kay Takeaways
The BS EN 124 classification is a set of standards in the UK that covers the design, performance requirements, and test methods for gully tops and manhole covers.
The classification includes six groups for different environments and several classes for load bearing capabilities, from Class A15 to Class F900.
Materials covered by the classification include cast iron, steel or aluminium alloys, steel-reinforced concrete, composite materials, and polypropylene, polyethylene, or PVC.
Manufacturers of gully tops and manhole covers can use CE marking to show compliance with European Directives and Regulations.
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