The application range of ductile iron manhole covers is becoming increasingly widespread,and they are widely used in residential areas,highways,parks,squares,and other areas,bringing great safety to people's travel.Next,let's talk about the necessity of quality inspection for ductile iron manhole covers.

　　Only ductile iron manhole covers that have passed the inspection can be put into use.The quality requirements are related to the safety of residents,so strict requirements must be met when dealing with quality issues with some ductile iron manhole covers.

　　1.The inspection of ductile iron manhole covers should be carried out according to the size requirements.From the surface,the pattern on the surface of the manhole cover must be clear,and the time to inspect it must also be clear.

　　2.You can choose a dedicated flatness detection tool for the flatness detection of ductile iron manhole covers.

　　3.The size of ductile iron manhole covers should meet accurate requirements to ensure that the deviation between the size of the purchased ductile iron manhole cover and the length of the well diameter is within a certain range.

　　4.The thickness of ductile iron manhole covers should also be noted,and the thickness of ductile iron manhole covers should be determined according to the requirements of bearing load.Conduct a pressure test to ensure that the bearing pressure meets the scale.

　　In summary,the necessity of quality inspection for ductile iron manhole covers is this.Do everyone understand?The manhole cover plays a very important role in our survival.We hope the above suggestions are helpful to everyone.If you have more knowledge you want to learn,please feel free to contact us.We will be happy to serve you.