Description

A manhole cover or maintenance hole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material. Cybertz Company Limited we supply Beulding materials, and Manhole Cover is among of materials which we supply.

Specifications

Construction specifications to consider when selecting manholes and manhole covers include materials of construction, shape, and application. Common materials of construction include precast concrete, fiberglass, and polyethylene. Precast manholes are usually made of concrete produced in sections at a factory and assembled at the site. Fiberglass is used with plastics to create an environmentally sound and strong structure. Polyethylene is a type of plastic used in the construction of manholes. It is highly corrosion resistant and environmentally safe. The shape of manholes and manhole covers can be round, square, or rectangular.