Knowledge

• Heavy-duty manhole cover installation specification standard

  Although the road manhole cover is a municipal engineering subsidiary structure, it has an important impact on road engineering and drainage engineering. It directly affects the safety of people's lives and property and more often brings threats to driving vehicles. With the development of society and the advancement of science and technology, there will be more and more new technologies and new materials, and the construction technology of inspection wells will be continuously improved and the performance will continue to improve.

  Knowledge December 24, 2020
• What is a gully cover?

  The gully cover is usually a grating covering the drainage gully, which can quickly and directly drain water into the gully under the cover. There is no possibility of water accumulation. It is usually used in low-lying areas, on both sides of roads, indoor vegetable markets, car washes, parking basements, etc. Usually, the trench covers are used in batches and linear arrangements. The indoor drainage system uses this type of gully, which can reduce the cost of constructing an underground drainage system. And this type of gully can play a role in protecting the drainage system. The sewage in the gully under the gully cover can play a role in sedimentation and sedimentation, reducing the direct discharge of debris and sediment into the drainage system and causing blockage.

  Knowledge December 10, 2020
• Why need to replace and refurbishment the manhole cover?

  It is necessary to replace and maintain the manhole cover, which is related to the safety of personnel and the normal operation of facilities. It is closely related to our lives.The most economically valuable manhole cover is composite manhole covers. Composite manhole covers will eventually replace cast iron manhole covers.

  Knowledge November 13, 2020
• How manhole covers can reduce weight and ensure safety？

  The composite manhole cover is currently the most economical and practical manhole cover. It has the advantages of explosion-proof, exhaust, sealing, waterproof, anti-corrosion, high transmission, safety, and environmental friendliness.

  Knowledge December 03, 2020
• Preparation before installing the manhole cover

  Before installing the manhole cover, you must know how to choose a suitable manhole cover. There is a guide to choose manhole covers.How to choose the size of the manhole cover?

  Knowledge November 18, 2020
• How to install the manhole cover？

  Need to measure the height of the covering or brick，determine the reserved depth to ensure that the manhole cover is flush with the road surface when the installation is completed. Clean the dirt on the frame seating. Lay sealing concrete onto the seating area, thickness on less than 40mm. If the base floor is brick, it should be moistened with water in advance...

  Knowledge November 22, 2020
• Should I choose round manhole covers or square manhole covers?

  When people talk about round manhole covers, they will definitely discuss the particularity of the round shape. Because it can be rolled, it is convenient for workers to carry. And the round manhole cover does not have the problem of the longest diagonal. Its diameter is the same in any direction, and the manhole cover will not fall into the manhole, which is very safe. This is indeed the advantage and advantage of the round manhole cover. The round manhole covers are so good, Why not make all the manhole covers round? We can see square manhole covers everywhere in our lives. Why is this?

  Knowledge November 05, 2020
• Why do we recommend using composite manhole covers?

  From the role of the manhole cover and the potential problems it brings, the problem is explained, and the problems faced by manhole covers of different materials are comprehensively analyzed. The comparison shows that the composite manhole cover is not only safe but also has advantages in many aspects.

  Knowledge October 29, 2020