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This may not be the case with square and rectangular covers that can fall in if placed diagonally while it is being aligned. Circular  manhole covers are also easy to roll and put into place.

4. Chemical Processing The chemical industry utilizes gate valves for their ability to handle corrosive substances under high pressure and temperature. They can be employed in piping systems for transporting various chemicals and ensuring process safety.

Typically made from ductile iron, C250 manhole covers are engineered to withstand significant stress while maintaining durability and longevity. Ductile iron is favored for its excellent mechanical properties and resistance to corrosion, ensuring that the cover remains intact and functional even under extreme environmental conditions. Furthermore, many manufacturers incorporate advanced designs that include effective sealing systems, which help to prevent water infiltration and keep the underground utilities secure.

The Importance of Choosing the Right Drain Cover A Focus on 450mm Round to Square Models