Precautions before use. Before using Hainan nodular cast iron manhole cover, we must understand its basic requirements. Compared with us, we can also understand its advantages in application. If we can't understand its use, its use efficiency will be much lower, Then let's talk about some precautions before using it:

1. Before the well cover is put into use, the materials of the well cover should be checked. It is recommended that the nodular graphite well cover should be made of high-strength steel fiber concrete, composite materials and other non-metallic materials. Gray cast iron and on-site self-made concrete products are not allowed.

2. The color of the surface of the nodular cast iron manhole cover should be consistent with the color of the road, and the surface of the manhole cover should have a raised anti-skid pattern, and the height of the bulge should be controlled between 3-8mm. This can not only prevent slipping, but also facilitate drainage and reduce the water volume on the surface of the well cover.

3. The contact surface between the well cover and the well seat shall be processed by corresponding machining methods. To ensure the stability and reliability of contact between them, there should be no bouncing when the vehicle passes by. If it is a metal well seat support surface, there should be sound attenuation and shock absorption materials between it and the well cover, and these materials should be reliably connected with the well cover.

4. Before installing the manhole cover, we should pay attention to the manhole cover identification. At the center of the manhole cover, there should be special Chinese characters and symbols to indicate the type of manhole cover. For example, rain means rainwater inspection well; Sewage means sewage inspection well; Water means water supply inspection well; Heat refers to nodular cast iron manhole cover for heating inspection well.

If we can all pay attention to these usage matters when using ductile iron manhole covers, then there will not be so many problems in daily application. After the basic source is handled, can we use them better? If it is helpful to you, I will feel honored. There's more Please pay attention to the official website of Hainan Plastic Industry Co., Ltd.