What Are Manhole Covers?

Manhole covers are a necessary part of many streets, sidewalks, and roadways. 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.

These covers keep debris and rainwater from falling into the manholes below. The removable manhole cover frame comes in various shapes and designs. Round manhole cover is the most popular choice which is often seen near traffic signals and street lights. Because the circular cover of manhole is easy to roll and put into the place. Top Manhole cover manufacturers in Kolkata can offer you different sizes and types of manhole frames.

Types of Manhole Covers

There are mainly three different types of manhole covers which are as follows ‐

1. Cast Iron Manhole Cover

Ductile iron manhole covers are made from a type of cast iron that is ductile, or capable of being drawn out into a wire. Ductile Manhole covers are comparatively very expensive and also prone to theft because of good resale value of Iron.

2. FRP Manhole Covers

FRP Manhole Covers are made using thermoset material. The material comprises of polyesters combined with Fibreglass reinforced materials to sustain against wear-n-tear for heavy load vehicular traffic. Comparatively these FRP Manhole Covers are cheaper than Ductile Manhole Covers but very expensive as compared to Precast Concrete Manhole Covers

3. Precast Concrete Manhole Cover

Precast Concrete Manhole Covers are most famous type of Manhole covers & frames sold by manhole cover manufacturers. These manhole covers are made of Concrete with suitable reinforcement, the process of manufacturing has been laid down in BIS code IS: 12592 (2002).

Compared to Cast Iron & FRP manhole covers these Precast Manhole Covers have comparatively provide better strength & are also cheaper. Precast Concrete Manhole Covers & Frames are also made of various types like

Precast Concrete Manhole Covers & Frames are also made of various types like:-

Features Of Precast Concrete Manhole Cover and Frame

  • Manhole Covers is a plug that protects the manhole from any unauthorized access.
  • Manhole Covers are used perform inspection, cleaning, and removal of any obstruction present in the sewage line
  • They are often round but can be square, rectangular, or any other shape as per requirement.
  • They come with a smooth finish and can withstand heavy pressure.
  • Manhole covers have a high compressive strength which makes them highly durable.
  • They can withstand all types of weather conditions and rusting processes.

Advantages of Manhole Covers

  • They can prevent rainwater from flooding the street below and allow for drainage.
  • Manhole covers are cheap and easy to install while offering a secure barrier.
  • Manhole covers protect a specific location or group of pipes, valves, or fittings from unauthorized access.
  • Manhole covers help keep sewers clean by keeping out small objects that can clog the sewer pipes.
  • They also reduce the chance of animals using the sewers as a place to build dens.
  • Manhole covers also make it easier for workers to install manholes without having to worry about accidentally digging into a pipe.

Manhole Cover

We manufacture different types of manhole covers including - RCC Manhole Covers and Frames, RCPC Manhole Covers and Frames, SFRC Manhole Covers and Frames and PFRC Manhole Covers and Frames. We offer high-quality products that comply with latest specification as per IS 12592 bureau of India Standards (BIS)

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