Cultural construction is the important content of urban construction, which needs to strengthen itself continually. This requires us to enhance cultural construction in the process of urbanisation and to use the power of culture to inject soul into urban construction. The manhole covers are increas

What are the advantages and disadvantages of each manhole cover? Manhole covers made from these two composite materials have many advantages in common.

The composite manhole covers are corrosion free while has the same compressive strength as iron manhole covers do, They are made from Fiberglass Reinforced Plastic (FRP), Sheet Molding Composite (SMC）is a house fabrication technology that yield out the most high quality manhole covers.

Production safety is so important that it can never be emphasized too much in every moment of the production.

There are differences between composite manhole covers and cast iron manhole covers in material, forming method, and on-site identification.

The right thing to do is to measure "O", the clear opening size of the manhole. "O" is the most important parameter we need to get.

IntroductionManholes play a vital part in the conservation of your area's structure, and their generalities date back to the Roman civilization. Numerous of our everyday mileage requirements, including electricity, gas, telephone, waste junking, and water, come from underground cables, pipes, rainsp

You should know the types and quantities of imported products, where these manhole covers are more often used, and your targeted clients. If for high traffic areas: heavy-duty manhole covers, high delivery costs. For pavements, gardens, etc.: light manhole covers.

Recently, Anhui province has creatively incorporated manhole cover information into the city's physical inspection indicators, advocating special manhole cover governance action to comprehensively investigate and eliminate the safety hazards of manhole covers; gradually replacing manhole covers tha

A piece of heartbreaking news: A man died while saving his pet dog that accidentally fell into a 3-meter-deep sewer hole (alternatively manhole).Why did the dog fall into the sewer hole? Mr. Liu (the district manager) says:” there used to be a cover on this sewage well inside the green bushes but so

What is the Sprinkler Valve Box?

What is the difference between manhole and handhole? How to select? There have kinds of solution for drainage and underground facility inspection.

What is a water meter box?A water meter box is a plastic box specially used for underground water pipes, gas and other line valves to facilitate the inspection, opening, closing, replacement and other settings of these valves. It can be used for regular inspection, cleaning and dredging of pipelines

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.

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.

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.

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.

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.

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.

How much does a manhole cover weigh?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 leas