Well cover should be very important. How to disqualify the quality of well cover can easily lead to some tragic accidents, which are not uncommon in China! Next, we will go with Shandong Ductile Iron Cover Manufacturer to see some foreign advanced experience of well cover management, hoping to help us!
1. Require no noise when rolling well cover
At present, there are 8 international standards for well cover。 The standard stipulates the bearing grade, the place of use, the depth of embedding, the residual deformation, the noise attenuation and the gap between the cover and the seat。 The European standard EN124 is internationally applicable。 In Germany, block gauge is needed to measure the precise and strict tolerance of well cover and wellhead, which ensures that the well cover is not deformed, broken and noiseless under repeated rolling of automobiles。
2. There is an iron basket with dirt under the well cover.
In German cities, sewer openings are usually made of metal grates as well covers. It is common that the cracks of grates are blocked by sundries, such as leaves, plastic bags and stones. In order to avoid blockage of the sewers in Germany, the first is that the gap between the sewers is relatively large, and the second is that an iron basket is specially connected under the sewers, which connects with the horizontal sewers. It can accept a lot of dirt, so that these solids can not rush into the sewers. Workers only need to open the drainage well cover, hook up the iron basket, put the waste in the basket into the garbage truck, and then reset it.
Today's wonderful content is provided by Shandong Ductile Iron Well Cover Factory. Welcome to collect our official website: http://www.kpp647.com. We will regularly publish more industry frontier information, hoping to help you!