Nowadays, there are many types of manhole covers, among which nodular cast iron manhole covers are a very good product. Today, I will give you an introduction to the installation of nodular cast iron manhole covers. I hope it will be helpful to you.
Ductile iron manhole covers have high strength and are very popular products nowadays. There are also some problems that need to be paid attention to during installation. I hope to understand the following points:
1. It is necessary to strictly install the construction design drawings for construction, and not change the size randomly, so as not to affect the flexibility in the process of manhole cover opening and closing.
2. When installing the ductile iron manhole cover, pay attention to whether the manhole cover will sink, the manhole cover will shift, the surface pattern of the manhole cover will be missing, and the friction force will be too small to slip on it.
3. Be careful not to damage the pattern on the surface during installation. You can find a thin piece of iron, or spray a layer of asphalt on the surface of the manhole cover to prevent the cement from sticking to the manhole cover, which is difficult to handle and damage the surface. font.
The above is the introduction of the precautions for the installation of ductile iron manhole covers. I hope the above content can help everyone.
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