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The main purpose of the manhole cover is usually universal, and the actual effect is remarkable because of its production, processing and processing technology. In order to improve the quality of products, it is a core part to continuously enhance the safety hazards of technical products, Only by doing well in the pressure test of ductile iron manhole covers can they be delivered for use without problems: Hainan ductile iron manhole covers
Published on: January 30, 2022 Clicks: 22
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Ductile iron manhole covers are generally divided into round and square ones. In terms of urban road administration, round manhole covers are generally used, because round manhole covers are not easy to tilt, which can better protect the safety of pedestrians and vehicles. The use of circle is mainly based on the fact that the length of each diameter of the round manhole cover passing through its center is the same, so if the manhole cover is rolled by the passing vehicle
Published on: January 30, 2022 Clicks: 55
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The cast iron manhole cover is an upgraded version of the ordinary cast iron manhole cover, and now the nodular cast iron manhole cover is used on all major highways, national highways, and urban roads. This is also the pace of upgrading from cement manhole cover to cast iron manhole cover, and then from cast iron manhole cover to nodular cast iron manhole cover. It is an indispensable manhole cover equipment in municipal construction. Hainan nodular cast iron well cover
Published on: September 26, 2021 Clicks: 32
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As for the ductile iron manhole cover, we firmly believe that we have a better understanding of it. It also has a very critical effect in our daily life. But in the whole process of application of the ductile iron manhole cover, we found that the ductile iron manhole cover is damaged. Once the ductile iron manhole cover is damaged, it is very easy to cause safety production accidents, so we must pay special attention to this aspect, Then what's the way
Published on: September 26, 2021 Clicks: 48
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According to the current scientific and technological status and use status of nodular cast iron manhole covers, the future development direction of nodular cast iron manhole covers must include the following aspects: the diversity of materials of Hainan nodular cast iron manhole cover manufacturers 1. The existing materials of nodular cast iron manhole covers in the market are: cast iron nodular cast iron manhole covers, nodular cast iron manhole covers, glass fiber reinforced ductile cast iron manhole covers, Resin ductile iron manhole cover
Published on: September 3rd, 2021 Clicks: 65
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1、 Project overview 1. The gutter inlet is a double grate gutter inlet, and the surrounding area of the gutter inlet is reinforced with C25 concrete. The rainwater grate is made of heavy plastic steel composite material. The inner opening size of the grate base is 300mm × 550mm. Hainan ductile iron manhole covers 2. Inspection manhole covers are divided into two types, one is the manhole cover in the green belt. The second is the inspection well on the motorway
Published on: September 3rd, 2021 Clicks: 100
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1) For brick masonry of manhole, manhole cover with inner diameter of 700mm shall be selected according to the size of manhole in the design drawings. Hainan nodular cast iron manhole cover 2) Determine the elevation of the top surface of the inspection well brickwork according to the thickness of the manhole cover and the height requirements of the top surface of the green belt filling. 3) Before installing the well cover in the green belt, it is required to have a certain thickness of fill in the green belt so as not to affect the installation of the well cover and well C25
Published on: July 25, 2021 Number of hits: 58
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In the so-called heavy type, it refers to the allowable pressure bearing capacity of 360kN or super steam - Grade 20 main vehicle in the delivery inspection; Light refers to the city where the pressure bearing 210kN or Class 10 main vehicle, Hainan nodular cast iron manhole cover and heavy airport, or highways and other special roads and sites for helicopters to take off and land are allowed to drive and park heavy vehicles
Published on: June 19, 2021 Clicks: 38
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There are many kinds of well covers. When facing so many kinds of well covers, we will think of what is special about these well covers? So many manhole covers naturally exist at the same time. A manhole cover can survive in the market for a long time, which means that this kind of manhole cover will not be completely rejected. Otherwise, what's the significance of its existence? So how can we correct so many manhole covers
Published on: May 8th, 2021 Clicks: 56
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At present, we can often see two kinds of manhole covers, one is the old cast iron manhole cover, the other is the ductile iron manhole cover. These two kinds of manhole covers are used in many projects. In terms of material, HT200 is used for the cast iron manhole cover, while the nodular iron manhole cover is processed with QT500-7. Generally speaking, the nodular iron manhole cover with the same weight is better than the gray iron manhole cover
Published on: April 19, 2021 Clicks: 47
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Why is the anti-corrosion work of nodular cast iron manhole cover? According to the name, we can see that the manhole cover is made of nodular cast iron. In general, iron will rust, but the corrosion resistance of the nodular cast iron is greatly improved. In addition, if you simply do a corrosion prevention work, you can improve its service life
Published on: April 14, 2021 Clicks: 41
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How to maintain the cast iron well cover? Now let's introduce the maintenance of cast iron manhole covers? Hainan nodular cast iron manhole cover The nodular cast iron manhole cover we usually see is made of cast iron plate. In order to prevent the cast iron plate from deformation, we need to know some methods to maintain the cast iron plate. We can maintain the cast iron plate from the following aspects
Published on: March 3, 2021 Clicks: 53
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As a product often seen in daily use, nodular cast iron manhole covers play an important role in our life. Because the wellhead is under the manhole cover, once the manhole cover is damaged or damaged, there will be great problems in personal safety. Therefore, the state has strict requirements on the technology of nodular cast iron manhole covers, and there are also requirements on the signs. Hainan Nodular Cast Iron Well Covers Wholesale Each Batch
Published on: September 18, 2020 Clicks: 94
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Why is a manhole cover made of nodular cast iron better? What are the advantages of ductile iron manhole covers? Let's take a look at Hainan Plastic Inspection Well. First of all, nodular cast iron manhole covers are mainly made of nodular cast iron. The quality of such manhole covers is related to the spheroidization rate. Rust proof asphalt paint is commonly used to treat castings, of course, nodular cast iron manhole cover
Published on: April 7, 2020 Number of hits: 61
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What is the standard and basis for the classification of light and heavy ductile iron manhole covers? Next, let's introduce Hainan Municipal Pipeline Department to you: First, let's understand what is a heavy ductile iron manhole cover: the experimental load is 400KN, corrosion resistance, aging resistance, acid and alkali resistance, large toughness, long life, high bearing capacity, not easy to deform, and good safety. 1. Application scope and occasions
Published on: April 1, 2020 Clicks: 193
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Do you know the difference between heavy ductile iron manhole cover and light cast iron manhole cover? Next, Hainan Plastic Inspection Well will introduce you in detail: 1. The application range and occasions are different. Heavy Hainan ductile iron manhole covers are generally used in places with heavy loads, such as airports, expressways, docks, the second ring road, urban expressways, etc. The common feature of such occasions is that
Published on: March 30, 2020 Number of hits: 168
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In life, we often see manhole covers. Do you know why there are so many manhole covers in the middle of the road? The following is a brief introduction of Hainan Municipal Pipeline: First of all, there are manhole covers in the urban roads we live in because the standards and requirements of different departments of road construction are different. The main types of pipelines laid underground in cities are power, telecommunications, heat, gas and water supply
Published on: March 27, 2020 Number of hits: 167
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Do you know why nodular cast iron manhole covers are so tender? Next let's let Hainan Municipal Pipeline Editor give you a detailed answer: First, the manhole covers made of nodular cast iron are mainly made of nodular cast iron, and the quality of such manhole covers is related to the spheroidization rate. The commonly used coating for processing castings is rust proof asphalt paint. Of course, the surface of nodular cast iron manhole cover is also
Published on: March 23, 2020 Clicks: 31
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What safety hazards should be paid attention to for Hainan ductile iron manhole covers? Hainan nodular cast iron manhole covers are closely related to our daily life facilities. Safety issues are often mentioned by people. If damaged covers are stolen, they will not be replaced in time, which will lead to incalculable vehicles and pedestrians. The safety problem of nodular cast iron manhole covers often attracts attention for several reasons. [Hainan plastic inspection well model municipal
Published on: July 10, 2019 Number of hits: 74
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Why are Hainan ductile iron manhole covers round? In life, we often see a very inconspicuous thing - manhole covers in green belts, sidewalks, motorways, docks, alleys and other places. We all know that manhole covers are used to cover roads or deep wells at home, prevent people or objects from falling, with various shapes, but there is a common point in the design
Published on: July 8, 2019 Number of hits: 97
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Mpp power pipe market trends, hainan plastic manhole editor for you. MPP power pipes have good mechanical properties and corrosion resistance. They are light in weight, easy to install, and do not need maintenance during use. However, for the sewer pipes using steel as public works, they must be coated frequently due to their easy corrosion during use, resulting in high maintenance costs. General buildings and utilities
Published on: 2019-05-29 Number of hits: 42
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What factors affect the price of mpp power pipe? Hainan Municipal Pipeline Editor will introduce it to you. Mpp power management industry has developed rapidly in recent years, the market demand has expanded, people's recognition of power management has increased, and the national policy has vigorously supported, the traditional technology and production process is difficult to meet the market demand. Constantly add new vitality to the market
Published on: 2019-05-29 Number of hits: 50
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About mpp power pipes, hainan ductile iron manhole covers. The wall of mpp power pipe is more elastic than that of ordinary pipes, and its texture is soft and its inner wall is smooth, with excellent water passing capacity. mpp power pipe's ultra quiet drain pipe also has excellent shock absorption and noise elimination effects with its double wall hollow structure. So why is the mpp power pipe silent? With people
Published on: 2019-05-29 Number of hits: 32
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How to construct mpp power pipe? Hainan Municipal Pipeline Editor will introduce it to you. With the use of modern plastic industry in modern enterprises, mpp power pipes are also used in various fields of life with the production of modern industry. When we use them, because of the overall design requirements, we often carry out welding construction. What should we pay attention to in the welding construction process
Published on: May 29, 2019 Number of hits: 35
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Hainan MPP pipe and PE pipe are different. Hainan nodular cast iron manhole covers are introduced to you. Mpp pipes are welded by hot melt welding. the welding joint has high strength and can be dragged by super length and high traction force. it has good toughness and excellent anti stratum settlement and seismic performance. MPP pipe overcomes the disadvantage that the mechanical properties of PE pipe decrease greatly when the temperature is above 40 ℃ and cannot be used for cable duct
Published on: May 29, 2019 Number of hits: 34
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Precautions for the installation of Hainan nodular cast iron manhole covers. Hainan nodular cast iron manhole covers have various shapes, high density and high degree of polymerization. Therefore, they have the advantages of wear resistance, corrosion resistance, environmental protection, etc., and are a relatively green product. However, if the production and installation of Hainan nodular cast iron manhole covers are not strictly in accordance with the standards or are ignorant of their precautions, No matter how good the product is, it will not be delivered
Published on: May 28, 2019 Number of hits: 33
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The reason for the hot sale of Hainan nodular cast iron manhole covers is that the production technology of Hainan nodular cast iron manhole covers has been greatly improved, and the market prospect of Hainan nodular cast iron manhole covers is much larger than that of other products. Therefore, the nodular cast iron manhole covers have been sold very well. What is the reason why they are loved by so many people? Let's get to know about it. 1、 Anti theft: this product is highly selected
Published on: May 28, 2019 Number of hits: 40
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Precautions before using Hainan nodular cast iron manhole cover. Before using Hainan nodular cast iron manhole cover, we must understand its basic requirements. Compared with us, we can also understand its advantages in application. If we can't understand its use, then its use efficiency will be much lower, Then connect
Published on: May 28, 2019 Number of hits: 39
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The reason for the damage of Hainan nodular cast iron manhole cover is that Hainan nodular cast iron manhole cover is a widely used product so far. However, due to long-term exposure to the sun and rain, the product will inevitably be corroded by rain and the sun, and thus be damaged. If we can't solve this problem well, Then I believe there will be some questions about its use
Published on: May 28, 2019 Number of hits: 42
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Hainan ductile iron manhole cover knowledge, why introduce the safety awareness of ductile iron manhole cover? It is not difficult to find that many cases of injuries caused by manhole covers have emerged one after another. If we cannot understand the safety knowledge of manhole covers, it will pose a certain threat to our own safety. Let's learn about it together. Loss and damage of nodular cast iron manhole cover in Hainan
Published on: May 28, 2019 Number of hits: 49
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What is Hainan ductile iron manhole cover? When we introduced the ductile iron manhole cover before, we also talked about its nature, performance and application. As a symbol of safety, we must do a good job in use and production to ensure the quality of its use. It is made of high-strength materials, so
Published on: May 28, 2019 Number of hits: 42
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What are the advantages of cast iron manhole covers? Hainan ductile iron manhole cover is a special product designed to prevent people from falling down after they dig sewers. The manhole cover is widely used in people's life. Its material and technology are one of the factors determining quality and safety. It is not only safe in use, but also has anti-theft function
Published on: May 28, 2019 Number of hits: 51
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The anti-corrosion measures of Hainan nodular cast iron well cover. In fact, the anti-corrosion effect of Hainan nodular cast iron well cover is very good in practical application. But if we don't use it well, the anti-corrosion products will also become non anti-corrosion, which is the most basic reason. So how do we use it to carry out some anti-corrosion treatment? Let's have a look.
Published on: 2019-05-28 Clicks: 71
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Hainan Nodular Cast Iron Well Covers Editor introduced the anti-theft methods of well covers. Nowadays, it is rare for well covers to be stolen. But in the past, because of the material of well covers, some people would steal well covers to sell for profit. Therefore, an anti-theft installer has been specially invented for this situation
Published on: 2019-05-27 Clicks: 44
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How to design drainage inspection wells? Hainan nodular cast iron well cover drainage wells mainly use polymer resin as processing material, replacing the traditional red brick cement material, effectively curbing the use of red brick cement material, thus saving surface soil resources; The common specifications of drainage wells for building communities are 315 mm and 450 mm in diameter, which changes the traditional inspection wells from 7 mm in diameter due to the limitation of production methods
Published on: 2019-05-27 Number of hits: 55
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Precautions for the construction of Hainan plastic manhole. In the previous article, the construction process of plastic manhole was mentioned, which can be referred to: the specific construction process of plastic manhole. After understanding the process, we need to pay attention to some details, otherwise the project progress may be slowed down. What are the precautions for the construction process of the plastic manhole? 1、 Well pit
Published on: 2019-05-27 Clicks: 172
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Hainan nodular cast iron manhole cover installation, come to understand. 1. The installation sequence of the connection between the inspection well seat and the pipeline shall start from the upstream section of the household pipe, and be installed in the sequence of well → pipe → well → pipe, and gradually extend to the downstream branch pipe and main pipe., 2. The construction of well seat joint and pipeline connection shall be consistent with the pipeline connection method of the same type of joint., 3. Well seat and inflow
Published on: 2019-05-27 Clicks: 192
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With the popularity of the concept of sponge city, the advantages of Hainan plastic manholes have also become a hotspot in the construction of sewers. Taking the Pearl Bay area of Guangzhou sponge city as an example, the form of rainwater and sewage separation has been adopted, which can distinguish rainwater from sewage. Domestic sewage is transported to the sewage treatment plant through pipelines and treated to meet the quality standards for miscellaneous water, For greening irrigation, vehicles
Published on: 2019-05-27 Number of hits: 52
