What's the name of the manhole cover again

The cover above the sewer is called a manhole cover.

There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, tap water pipelines, power pipelines, communication pipelines and national defense pipelines. These pipes should have an outlet to the ground at regular intervals. The section from the pipeline to the ground is called the manhole. Usually, the manhole mouth is flush with the ground, so it is necessary to cover the manhole with a cover. This cover is called the manhole cover.

Well covers are usually made of reinforced cement, metal, reinforced plastic and other materials, and their shapes are mainly round and square. On the manhole cover, it is generally necessary to indicate the purpose of the underground pipeline, the storage unit, telephone number and other information.

Extended data:

Well covers are used to cover deep wells in roads or homes to prevent people or objects from falling. According to the material, it can be divided into metal manhole cover, high strength fiber cement concrete manhole cover and resin manhole cover. Generally use a circle. Can be used for green belts, sidewalks, motor vehicles, docks, alleys, etc.

Performance characteristics:

1, high strength: magnesite test, with high compressive, bending and impact strength and toughness. After long-term use, the manhole cover will not be crushed and damaged, and the "urban black hole" accident can be completely eliminated.

2. Beauty: the surface pattern of magnesite manhole cover is beautifully designed, with bright and adjustable colors, which beautifies the urban environment.

3. Easy to use and light in weight: the weight of the product is only about one third of that of cast iron, which is convenient for transportation, installation and emergency repair, and greatly reduces the labor intensity.

4, anti-theft: magnesite manhole cover has no recycling value and is naturally anti-theft; According to the needs of customers, it is equipped with a locking structure to realize the anti-theft of property in the well.

5. Strong weatherability: Through scientific formula, advanced technology and perfect technical equipment, the magnesite manhole cover can be used normally at -50℃ ~+300℃.

6, acid and alkali resistance, corrosion resistance, wear resistance, vehicle crushing resistance, long service life.

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