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Technical Description Of Manhole Cover Material Differentiation and Application Scope

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According to the material, the manhole covers can be divided into metal covers: cast iron, ductile iron, bronze manhole covers, etc.; high strength steel fiber cement manhole covers (cement-based composite materials); polymer composite manhole covers, SMC / BMC composite manhole covers, glass fiber reinforced plastic manhole covers and resin manhole covers.
The application scope of well cover includes:
1. Domestic / industrial drainage: used in rainwater and sewage pipelines.
2. Water supply: used in tap water, fire engineering, etc.
3. Heating and heating: used in heating arm line.
4. Power supply communication: used in power supply cable, telecommunication engineering, telephone, communication cable pipeline.
5. Landscaping: used in supporting comprehensive pipelines.
6. It is used in gas pipeline and gas engineering.
7. Street lighting: used in power supply, lighting, cable pipeline
With the GB / t23858-2009 inspection manhole cover standard issued by the state in 2009, the new composite material manhole cover product quality standard improves the load requirements of manhole cover, which is in line with the international standard en124. After the implementation of the standard from February 1, 2010, the composite manhole cover is defined as a kind of inspection manhole cover, and its characteristics are described: the manhole cover made of polymer as matrix material, reinforced material, filling material, etc. is compounded by a certain process, and its popularity and application in the market. The polymer all composite material manhole cover has the advantages of light weight, high strength, good fatigue resistance, good damage safety, superior molding technology, low noise, non-corrosion, acid and alkali resistance, beautiful appearance, etc., which makes it an ideal substitute for cast iron manhole cover.
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