When choosing the right manhole cover for your project, various factors must be considered to ensure durability and functionality. In this article, we will highlight some of the things you need to know before buying a manhole cover. Whether it’s a road with heavy traffic or a commercial area or a residence, we can meet your needs!
Load Rating
The load rating of a manhole cover is a key factor in determining its ability to withstand weight and pressure. It is critical that the load rating matches the expected flow rate. We offer various types of manhole covers that comply with EN-124 standards, from pedestrian areas to heavy vehicle areas. Understanding your application scenarios will help you make the right choice before purchasing a manhole cover.
Material
The main manhole cover materials currently on the market include cast iron, stainless steel, aluminum and composite materials. Among them, cast iron and stainless steel have higher compressive strength and perform better in scenarios such as urban roads; while aluminum and composite manhole covers are relatively unsuitable for use scenarios with heavy loads.
Measure Size
- Measure the inside dimension of the manhole opening.
- Measure the depth of the frame ledge from the bottom of the ledge to grade to determine the cover’s required thickness so the new cover will sit flush in the frame to avoid a tripping hazard.
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