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Why Do We Recommend Using Composite Manhole Covers?

May. 07, 2021

Why Do We Recommend Using Composite Manhole Covers?

Composite Manhole Covers Suppliers will share this article with you.

With the development of urbanization, more and more manholes appear around us. It can be seen on the road, on the sidewalk, and downstairs in the apartment. It carries underground drainage facilities and urban power service facilities. While bringing me unlimited benefits, it also brings us many potential security risks.

The first question that people must consider is how much weight the manhole cover can bear? The task of the manhole cover is to ensure road safety. If it cannot bear a reasonable weight, it is like walking in a dark night without lights for pedestrians or vehicles. This can be dangerous.

Common manhole covers include cast iron manhole covers, ductile iron manhole covers and composite manhole covers. Next, we compare the advantages and disadvantages of several manhole covers from multiple angles.

Cast iron manhole cover

Traditionally, manhole covers are made of cast iron. The biggest advantage of cast iron manhole covers is that they are cheap. The weight of the cast iron manhole cover is relatively heavy, which increases the cost and difficulty of handling.

Cast iron manhole covers are fragile and will rust after a long time of use. Therefore, the cast iron manhole cover is easily damaged after long-term use, and the maintenance cost is relatively high.

Ductile iron manhole cover

The ductile iron manhole cover is an upgraded version of the cast iron manhole cover popular in the 1950s. It is a high-strength cast iron material. It is generally considered to be a better choice than cast iron manhole covers. The quality of ductile iron is lighter than cast iron. Nodular cast iron is obtained through spheroidization and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially plasticity and toughness. So as to obtain higher strength than carbon steel.

Composite manhole cover

Composite manhole covers have become popular in the past ten years. The fiber-reinforced thermosetting composite material based on unsaturated polyester resin is a new type of environmental protection manhole cover.

Composite manhole cover

The role of the manhole cover

Prevent people from falling and ensure road safety.

Prevent garbage and debris from entering the tunnel or drain.

Prevent the odor from spreading to the surrounding area.

The underground facilities are easy to maintain.

The problems faced by the cast metal manhole cover

Being stolen will cause losses, increase labor costs, and risk falling onto pedestrians.

The quality of the manhole cover is generally very heavy, and it is very difficult to carry a heavy manhole cover in the process of maintenance, installation, and disassembly.

There is a risk of electric shock. The metal casting manhole cover has had too many electric shocks.

Therefore, from the perspective of the functions and existing problems of the manhole cover, the composite manhole cover perfectly solves all the above problems, and the composite manhole cover is also your best choice.

In addition to the above advantages, composite manhole covers have other unexpected advantages. It has perfect air tightness and non-slip performance.