If you are looking for more information about various manhole covers and the installation guide for manhole covers, make sure to read this article from ABtank. In the following, we will review these covers, their types, and how to install them.
What is a Manhole Cover?
Before explaining the manhole cover installation guide, let’s briefly discuss what a manhole cover is and its application. Surely, you have noticed covers in the streets and sidewalks that are usually circular in shape while driving or walking. You may have also seen people lifting these covers and entering the holes beneath them. These are manhole covers, which are commonly used in sewer systems, gas distribution, telecommunications, and other facilities. It is natural for underground water and sewage pipes, telecommunications cables, and other utilities to become worn out over time, requiring maintenance and repair.
Therefore, manhole covers are used at regular intervals and critical connection points to avoid digging and excavation during repairs and inspections as much as possible. Additionally, technicians and repair workers use manhole covers to easily access the underground network and perform maintenance and inspection tasks.
Manhole Cover Installation
When installing these covers, several considerations must be observed, including:
- The installation surface of the cover frame must be level, and the underlying surface should be compacted and covered with an appropriate layer of cement.
- The frames act as supports and barriers, and the frame must be placed on the manhole in such a way that it transfers all applied loads to the underlying foundation. In other words, the edges of the frame and the area where the cover sits should be fully supported and integrated with the foundation.
- The frame or cover must be perfectly aligned with the manhole and should not be tilted to one side.
- After placing the frame, it is essential to check its secondary leveling.
- After following the above steps and ensuring the frame’s stability, apply cement around the stepped surface of the frame until it is level with the top of the cover frame.
- Once the frame is fully set and stable, place the cover on the edge of the rim and gently press it into place. Additionally, composite covers can be installed using a special wrench, which can enhance the product’s longevity.
Advantages of Composite Manhole Covers
One type of manhole cover, based on material, is the composite manhole cover, which has numerous advantages over older models. Some benefits of composite manhole covers include:
- Unlike metal materials, composite covers have excellent resistance to moisture, rust, acidic substances, and corrosion. They are also highly suitable for use in fuel stations and fuel storage power plants due to their properties.
- Composite materials are not electrically conductive, making them very suitable and safe for use in high-traffic areas, such as city sidewalks.
- They are about three-quarters lighter than metal versions.
- Due to their material, they generate less noise when vehicles and heavy loads pass over them.
- Their design helps significantly reduce unpleasant odors in the surrounding environment when used in sewer networks.
- Composites are recyclable, and their production emits less carbon dioxide compared to metal covers. Thus, using composite manhole covers greatly contributes to environmental protection and resource conservation.
Clearly, these are just some of the features and benefits of composite manhole covers. Given the positive reception from ABtank customers for this type of manhole cover, it is important to consider several key points in the manhole cover installation guide. First, make sure to level the surface under the pipes using a layer of mortar. Additionally, install the manhole and connect it to the main pipe in such a way that the pressure on the manhole is minimized (the piping should be perpendicular to the underlying surface). Finally, ensure that the manhole cover is level with the final road surface.
Buying Manhole Covers
In addition to composite manhole covers, there are other types such as: copolymer manhole covers, polymer concrete manhole covers, gutter covers, nano-composite manhole covers, cast iron manhole covers, sewer covers, and polyethylene manhole covers, all of which are produced by ABtank. High-quality raw materials are used in the production of each type, ensuring the final product’s quality.
ABtank, with over a decade of experience and a stellar reputation, specializes in various polymer and petrochemical products. The company offers a diverse range of products such as: water tanks, fire-resistant coatings, plastic materials, and nano materials. For more information about the manhole cover installation guide and other products from ABtank, please contact the experienced experts of this company.
