Manhole covers can be said to be often seen in our daily life. Manhole cover manufacturers also spend time on its design when designing manhole covers. The development of ductile iron manhole covers is based on the addition of spherical high-purity graphite on the basis of traditional cast iron manhole covers, which means that the manufactured nodular cast iron manhole covers have improved physical properties and ductility above the original properties. This is the manufactured nodular graphite. Cast iron manhole covers.

Most of the manhole covers that we usually have on the side of the road are circular in design. Many people will have doubts and add them. Let’s analyze whether the manufacturer has any special requirements for the design of the manhole cover when designing the ductile iron manhole cover.

Ductile iron manhole covers are generally designed in two shapes: round and square. In fact, most of the manhole covers are in these two shapes. The manufacturer introduced that in the bustling area of a big city, such a design is mainly considered for the safety of passers-by and vehicles. The advantage of the circular manhole cover design is that the circular manhole cover is used according to its center point. One of the diameters is the same length, usually the advantage of this design is that if the vehicle is pressed against the manhole cover, there will be no dangerous accidents.

There is also a square design. The reason for designing a square manhole cover is that the diagonal of the square is obviously longer than the other. If the wellbore is made round or significantly lower than the square manhole cover, it is not easy to fall into the well.

The detailed introduction of the shape of the ductile iron manhole cover, the common cast iron manhole cover styles are more round or square, the manhole cover manufacturers must have their own considerations when designing the manhole cover. The two have different advantages It's just that the occasions that may be used are different. You can choose the ductile iron manhole cover suitable for your area according to your actual needs.