The circular design of round concrete drain covers allows for optimal water flow. This shape eliminates corners and edges that can trap debris and impede drainage. In heavy rain, round covers allow for quicker runoff, reducing the risk of flooding and ensuring that stormwater is efficiently directed to the drainage system. This feature is particularly beneficial in regions prone to heavy storms, where standing water can lead to traffic hazards and property damage.
These types of manhole covers are designed to be prominently visible on the floor. A solid top silver manhole cover is made of lighter galvanized steel with an anti-slip surface. These are usually installed in areas where regular maintenance and safety inspections are often conducted. Solid top covers are preferred for lighter usage, fitting flush at ground level, and inset grab handles. Solid top covers loading classes are subjected to BS EN 124:2015 guidelines. Manhole cover exporters adhere to the regulations of the loading classes to meet the international standards.