Composite Manhole Covers

Product Specifications

Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Material:	SMC
Type:	Manhole Cover
Feature:	Anti-Corrosive
Light Color:	Green

Product Description

Features 1.Environment friendly: All the raw material of high performance modified SMC sheet can meet national environmental protection's requirements without any pollution. 2.Save mineral resources: SMC manhole cover instead of traditional cast iron manhole cover which saved an enormous amount of ironstone resource. 3.Resist corrosion: It's acid alkali resistance, salt resistance, corrosion resistance and resistant to rust, it can be used in any severe environment with a temperature ranging from -50°C to 200°C. 4.Low price: It's only two thirds of cast iron manhole cover with a same performance. 5.Low weight: It's two thirds of cast iron manhole cover, more convenient in installation, transportation, maintenance, construction and decreasing the labor strength. 6.Prevent theft: the material is not recyclable, fundamentally eliminate theft. It can absolutely prevent 'city holes' from happening, and brought great convenience for public works administrative departments. 7.Low noise: By using non-metallic material reduced the noise pollution to a large extent. 8.Long service life: The polymer composite manhole cover can bear 2 million cycles of fatigue test and the service life can reach more than 30 years. To ensure the normal use of composite manhole cover, there should be pay attention to installation quality, be sure that the size is correct, installation is solid, easy to open, clean and nice appearance. According to the technology standard of composite manhole cover, the installation is made as follows: 1.The construction of brick work should be designed according to the requirements of design institute and ensure that the inner diameter (length and width or diameter) is accurate. 2.When installing the collar on concrete roads, there should pouring a 20cm thick concrete ring beam and a 40cm width guard circle around it between the collar and brick setting to mak the surrounding compaction, level and unmoveable. The maintenance period should above 10 days. 3.When installing the collar on bituminous road must avoid a roller compaction by construction equipment. The collar must be installed after paving asphalt. A hole which is slightly larger than the collar should be reserved before the pavement casting. The reserved hole can help ensure the installation quality and prolong its using life. 4.For keeping a nice appearance, there should put a cover or brush with oil on lid to protect it from stained during asphalt pavement construction. Using plastic film cover the lid to protect the cement during cement road construction. And the lid should be cleaned after construction the same day. 5.Timely open and clean up the lid to avoid the lid integrate with collar after road paved. 6.The lid should be installed on corresponding roads according to different load capacity.