Differences in the Use of Ductile Iron Manhole Covers D400 and E600

D400 and E600 ductile iron manhole covers each have their own advantages and disadvantages. The choice of which one is better depends on the specific usage scenario and requirements.

Firstly, in terms of bearing capacity, the E600 manhole cover can withstand a weight of up to 60 tons, while the D400 manhole cover has a maximum load of 40 tons. Therefore, E600 is more suitable for high traffic areas such as airports, freight stations, and other places that need to withstand heavy loads.

Secondly, in terms of material, E600 manhole covers usually use higher strength materials, which makes them more stable when subjected to larger loads. In contrast, although the D400 manhole cover is also quite sturdy, its strength is slightly inferior.

Finally, from the perspective of applicable scenarios, the D400 manhole cover is suitable for medium load areas such as urban main roads and highways, while the E600 is suitable for extremely high load places such as airports and freight stations. Therefore, if the area has high traffic or needs to withstand heavy loads, E600 may be a better choice; In low traffic areas or places where light vehicles pass, D400 is sufficient for use.