
bearing dust seal.
These are the assets that provide a surface connection to the underground sewer network below. Manholes split gravity sewer mains at regular intervals, often at changes in direction. Their primary function is to provide access to pipes for cleaning, removing blockages, and allow condition assessment inspections by maintenance crews.
Have you ever wondered: “what is a manhole cover?” A manhole cover is a removable plate used to close off an opening to a confined space such as a sewer, utility access point, or storm drain. They are typically round or rectangular and drop into or sit atop an underlying frame or structure. Manhole covers are often made from cast iron, ductile iron, steel, concrete, composite materials, or plastic.