The shape of ductile iron manhole covers is round, and the performance is very good. At the same time, the application of this product is also very popular, and the use intensity of this product is also very high, in the following content The custom led heat sink supplier will introduce you to the relevant knowledge of this product in detail and hope to help you.
In fact, there are two types of spherical manhole covers: square and round. Generally, we see more on the road are round because the prototype image is better than the foot with better stability. Guarantee the safety of our pedestrians and vehicles. One reason for deepening is that the round product passes through the center of the circle, and the length of each diameter is the same. When the manhole cover is rolled by the passing vehicle, its diameter will be fierce than the wellhead below, and the manhole cover will not fall. The situation inside the well. The reason why he cannot be widely used is that its diagonal is longer than each of the edges, and it is also rolled by the car. The probability of the well cover falling into the well is many times greater than that of the circle, which is easy to cause Security risks. The reason why the circle is widely used is not only because of safety considerations, but also it can save more than the square. The cast data can also save costs on the basis of safety.
Ductile Iron Manhole Covers
A nodular manhole cover is a very important product used in cities. Its performance is very outstanding. When we are using this kind of product, we have very strict control over its raw materials. The produced product has very good plasticity, and its tensile strength is also very high.
Especially in winter, it can effectively resist freezing. Under the condition of long-term use, the phenomenon of rust cannot occur, so its rust prevention performance is also very outstanding, and its installation is very simple and convenient. No matter what type of manhole cover, we only need to follow the requirements After drilling two holes, you can equip the anti-theft device. It has helped us a lot.
Installation of Ductile Iron Manhole Cover:
When we install nodular cast iron manhole covers, we need to consider many factors, such as whether the manhole cover sinks, the manhole cover is displaced, the surface pattern of the manhole cover is missing during installation, and the friction is too small, which is easy to Slipping above and other factors. These need to be taken into consideration in advance, and special care needs to be taken during installation. For example, when there is a pattern on the surface of the manhole cover and when you are constructing yourself, you should take care not to damage the pattern font on the surface. You can find a thin iron sheet. Or spray a layer of a drain on the surface of the well cover. To prevent the cement from sticking to the well cover, it is difficult to handle and damage the font on the surface. The exterior circle of the manhole cover should be constructed in strict accordance with the design and construction drawings. The size cannot be changed arbitrarily. This can ensure that the manhole cover is flexible and free when it is opened or closed.