Manhole Covers Types & Sizes

Manhole Covers: Types & Sizes

Introduction ● Manhole cover is a removable plate forming the lid over the opening of a manhole. ● It is also called maintenance hole cover. ● It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material. ● Manhole covers are often made out of cast iron, concrete or a combination of the two.

Types of Manhole Covers As per BS EN 124:2015, three main types of Manhole Covers: ● Ductile Iron Manhole Cover ● Solid Top Manhole Cover ● Recessed or Screed Manhole Cover

Ductile Iron Manhole Cover ● The most common type of Manhole Cover ● Solid & Reliable ● Highly Brittle in Nature ● Compared to cast iron cover, ductile iron cover is much stronger

Solid Top Manhole Cover ● This is a galvanized steel Manhole Cover ● Light in Weight ● These covers has a fitting flush at a ground level & has inset grab handles. ● Employed for lighter use

Recessed or Screed Manhole Cover ● Special Manhole Covers for decorative finish ● Provision to lay paving block or screed ● Mainly used in driveways or to hide manhole

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