Manhole cover is a seal product on the top of the entrance to the underground facilities. All place where install water, telecommunications, electricity, gas, heat, fire protection, sanitation and other public facilities need to install manhole cover.

According to the characteristics of pipeline engineering, in order to meet the requirements of installation equipment, daily overhaul and maintenance, inspection wells are set along the buried direction of pipeline at a certain distance in the project.

The manhole cover is the main supporting product of the inspection well, and its function is to bear, close and open the inspection well. It can not only withstand the high speed driving of traffic vehicles, but also prevent the entry of vehicles, pedestrians and foreign bodies, and ensure the normal operation of underground pipelines and equipment.

According to the shape, manhole covers can be divided into round, square or rectangular,

According to pressure, manhole covers can be divided into light, ordinary, heavy and super heavy

According to the material, manhole covers can be divided into ductile iron, reinforced glass fiber, steel fiber, resin molding composite, recycled resin composite, silicon plastic……(in order of pressure from large to small)

According to users, well covers can be divided into municipal, tap water, telecommunications, electricity, gas, heat, fire and other public facilities.

At present, our company’s main standard of manhole cover is The European EN124 standard. Manhole cover pressure is divided into the following six standards A15, B125, C250, D400, E600, F900, which pressure is 1.5 tons, 12.5 tons, 25 tons, 40 tons, 60 tons and 90 tons, E600 bearing 60 tons, the manhole cover belongs to the heavy manhole cover.