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Knowledge

2021
DATE
02 - 04
Advantages of composite assembly manhole chamber
Composite manholes have lower maintenance costs, smooth surfaces, and easier flushing of prefabricated manholes. It is more resistant and stable to various chemicals caused by sewage or soil. Non-conductive, anti-corrosion, stronger toughness. The sealing is better, and the facilities in the manhole room are more protective.
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2021
DATE
01 - 30
Airtight Inspection Cover
The airtight manhole cover has a good sealing effect and has a built-in sealing ring. It is one of the commonly used manhole cover choices in communications, power, and other industries. Common ones are rectangle, circle, or square. The air-tight manhole cover is better fixed, not easy to loosen, and not easy to crush. An inner manhole cover can be set under the manhole cover to prevent personnel from falling into the "double insurance". The airplane door design is adopted, the inner edge of the frame has a certain slope, the outer edge of the manhole cover is parallel to it, and the manhole cover is covered, directly embedded, and will not move randomly, and sufficient clearance is reserved for the rubber ring to seal impermeable. The built-in sealing strip is made of rubber, which not only has airtightness but also reduces the noise when the car passing.
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2021
DATE
01 - 15
The best road drainage solution for different facilities
The installation of the manhole cover should appropriately select the sewer manhole cover and manhole cover level according to different installation locations. Various installation locations can be divided into the following types of different regional levels. It is the designer's responsibility to select the appropriate manhole cover level.
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2021
DATE
01 - 05
Why choose composite material for manhole cover?
The composite material is a new type of material that is composed of several types of different materials, such as organic polymers, inorganic non-metals or metals, through a composite process. It can not only retain the main characteristics of the original composition material, and obtain the performance that the original composition does not have through the compound effect. The performance of each component can be complemented and related to each other through design, so as to obtain new superior performance, which is essentially different from the simple mixing of general materials.
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2020
DATE
12 - 28
Drainage system installation
In daily life, communities with teeth and sidewalks usually install gully grating to meet the needs of pavement drainage on rainy days. However, after a period of time, dust, fallen leaves and some man-made garbage on the road will enter the sewer or channel through the drain of the gutter cover. Many garbage will affect sewage treatment and even cause water pollution; over time, it will not last for a long time. The cleaned gully will be blocked, which will make it impossible to drain on rainy days, resulting in water in the road area; the size of the drainage port of the gutter cover is often easy to become a habitat for rats and other pests, causing rodent infestation and other problems. At the same time, the commonly used ditch cover is non-slip and easy to slip when stepped on it on rainy days.
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2020
DATE
12 - 24
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.
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2020
DATE
12 - 15
How heavy is a manhole cover?
The weight of the cast iron manhole cover is generally determined by the size and thickness of the manhole cover. According to the standard of BS EN 124-2, the light cast iron with a diameter of 500mm is only allowed to be used by pedestrians and cyclists (at least A15). The total weight of the manhole cover and base is generally not less than 50kg, and the cast iron manhole cover is generally about 25kg. As the manhole cover increases and the load-bearing grade increases, the weight of the manhole cover also increases. The composite manhole cover is 20%-30% lighter than an iron manhole cover, such as one clear opening 600 D400 iron manhole cover is 56kg, but one clear opening 600 D400 composite manhole cover is 48kg. Lighter weight means saving not only the shipping cost but also the labor cost.
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2020
DATE
12 - 10
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.
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2020
DATE
12 - 03
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.
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2020
DATE
11 - 27
What an interesting manhole cover!
This type of manhole cover is very creative, and it can be described as "not only practical but also beautiful". It gives people a beautiful visual enjoyment and gives the manhole cover a certain cultural connotation. At the same time, this kind of manhole cover has the functions of anti-theft, anti-skid, anti-settling, anti-noise, anti-bouncing, anti-falling, etc., not only can effectively solve the drainage safety problem but also To a certain extent, ensure the safety of road traffic in the area.
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2020
DATE
11 - 22
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...
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2020
DATE
11 - 18
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?
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2020
DATE
11 - 13
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.
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2020
DATE
11 - 05
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?
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2020
DATE
10 - 29
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.
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Its main products include composite manhole covers, water meter, power and gas industry meter boxes , Drainage grate, customized composite products and SMC materials.
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 Whatsapp / Wechat: 0086-15088708967
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   Add: Jinsha Rd., Fangyuan Industrial Zone, Yuqian Town, Lin'an district, Hangzhou City Zhejiang Province, China.

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