Cast iron manhole cover

Manhole cover is used to cover the deep wells on the road or at home to prevent people or objects from falling. It is used for outdoor wells inside industrial and civil construction areas, and can also be used for water supply and drainage wells, ventilation wells, etc. It can also be used for green belts, sidewalks, motor vehicle lanes, docks, alleys, etc.

Manhole covers are generally circular, because circular manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. The use of a circular shape is mainly due to the fact that the length of each diameter of the circular manhole cover through its center is the same. In this way, if the manhole cover is rolled up by a passing vehicle, no matter how it is rolled up, its diameter will be slightly wider than the wellhead below, and the manhole cover will not fall into the wellhead. It can withstand high-speed traffic of large traffic flows, and can also prevent the entry of vehicles, pedestrians and foreign objects, ensuring the normal operation of underground pipelines and equipment.

Performance Characteristics

1. High strength: It has high compressive, bending and impact resistance, and is tough. After long-term use, the product will not have the manhole cover crushed or damaged, and can completely prevent the occurrence of “urban black hole” accidents.
2. Beautiful appearance: The surface pattern of the manhole cover is exquisitely designed, the color is bright and adjustable, and it beautifies the urban environment.
3. Easy to use and light weight: The weight of the product is only about one-third of that of cast iron, which is convenient for transportation, installation, and repair, greatly reducing the labor intensity.
4. Anti-theft: According to customer needs and equipped with a locking structure, the property in the well can be anti-theft.
5. Strong weather resistance: The manhole cover uses scientific formulas, advanced technology, and perfect technical equipment to enable the product to be used normally in an environment of -50℃~+300℃.
6. Acid and alkali resistant, corrosion resistant, wear resistant, vehicle crushing resistant, and long service life.

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