Dec . 05, 2023 13:30 Back to list

How to extend the service life of manhole cover?

To prevent the nodular cast iron manhole cover from being eroded underground and extend the service life of the pipe network, the outer surface of the nodular cast iron manhole cover should be coated with a layer of asphalt paint, and then packed into the warehouse. In order to further enhance the corrosion resistance of cast iron manhole covers, cast iron manhole covers manufacturers need to spray zinc on the outer surface of ductile iron manhole covers. We can do a variety of surface treatment of cast iron manhole covers.

Such as epoxy resin paint, hot dip galvanizing and so on Cast iron manhole cover rust; Occasionally there will be rust before or during the production of cast iron manhole covers, which indicates that the appearance is severely polluted. The rusty manhole cover must be polished and shot blasted to remove the rust, and the surface must be inspected before leaving the factory.

Development Trends in the Application of Various Inspection Well Covers on Urban Roads