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Inspection well installation sequence: 1. The construction area is expanded from upstream to downstream. 2. Install according to the well tube and well tube sequence. 3. Determine the center of the well and lay the mat: 1. Adjust the elevation of the foundation pit at the bottom of the well, and then install the bottom of the well and connect it with the pipeline. Bottom hole installation: 1. Review of bottom hole component specifications 2. Temporary cushion towards the foundation, main axis and bottom elevation of the central shaft
Published on: January 26, 2022 Number of hits: 23
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As China's economy is more and more developed, people's living standards are also getting higher and higher, and the quality of life is also increasingly valued. Water is a necessity in people's life. The quality of water directly affects our health and quality of life, and even the quality of industrial products. Hainan municipal pipeline However, with the increasingly serious water pollution, the common municipal water supply has been unable to meet
Published on: November 7, 2021-10 Clicks: 52
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The general construction procedure of building pipeline engineering is: "construction preparation → reservation and embedding → pipeline mapping and setting out → pipeline element inspection → pipeline support fabrication and installation → pipeline processing and prefabrication → pipeline installation → system test → anti-corrosion and thermal insulation → system cleaning → trial operation → completion acceptance". Among them, pipeline system test is an essential step before completion acceptance, and there are five major steps according to the specification requirements
Published on: November 7, 2021-11 Number of hits: 51
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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: 47
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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: 31
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The plastic inspection well tells you that the rainwater module of rainwater storage system series products is a unit cube made of recyclable block polypropylene (PPB) through one-time injection molding, which can form a whole structure in various ways.
Published on: September 3rd, 2021 Clicks: 59
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Today, the HDPE double wall corrugated pipe manufacturer Xinpeng Pipe Industry will introduce its physical properties and appearance requirements: the double wall corrugated pipe is made of PVC as the main raw material, with smooth inner wall, corrugated outer wall, and hollow annular structure between the inside and outside. Double wall bellows with
Published on: September 3rd, 2021 Clicks: 40
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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: 64
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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: 99
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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 Clicks: 57
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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: 37
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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 8, 2021 Clicks: 55
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As one of the important components of urban infrastructure, municipal pipelines can timely drain urban surface rainwater, provide industrial and domestic water for the city, and prevent urban water resources from being polluted. Today, I sorted out the contents related to the construction and design of municipal pipelines, hoping to help you. Hainan municipal pipeline I. Pipeline materials 1. Basic requirements: enough
Published on: April 25, 2021 Clicks: 37
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The reason for the wall cracking of ductile iron pipe is that there is no proper provision in casting to change the useful factor of cracking caused by proper brittleness. It is suggested that you use the cast iron fault repair machine. The reason for the crack is that the temperature is too high during the heat treatment in casting. At present, it is available in the market, but it can only be repaired to ensure that its outline is intact, so that your product can pass the moral standards, but if it is operational
Published on: April 23, 2021 Clicks: 44
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Plastic inspection wells, commonly known as plastic "inspection wells", are ancillary drainage structures that are set at the intersection of plastic drainage pipes, bends, pipe diameter or slope changes, water drops or straight pipe sections at certain intervals to facilitate regular inspection, cleaning and dredging of pipes. Most of the well seats of Hainan plastic inspection wells are made by one-time injection molding, with reducing joints
Published on: April 21, 2021 Clicks: 34
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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: 46
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It is one of the most basic methods for pipeline corrosion prevention to evenly and densely coat the derusted metal pipeline surface with paint to isolate it from various corrosive media. Since the 1970s, pipeline laying in polar, marine and other harsh environments, as well as oil heating and transportation, have raised the temperature of the pipeline, putting forward more requirements for coating performance. Therefore, more and more pipeline anti-corrosion coatings
Published on: April 16, 2021 Clicks: 53
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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: 40
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For plastic drainage inspection wells, the labor cost, material cost and machinery cost should be considered when the quota is set. The premise of the quota is to have a deep understanding of the construction technology of plastic drainage inspection wells. For example, whether the plastic drainage inspection wells need to be built as sink wells or launder wells, it is best to first look at the relevant engineering practice atlas, How to set norms for plastic drainage inspection wells
Published on: April 10, 2021 Clicks: 121
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A. Pit and foundation 1. Pit and pipe trench shall be excavated at the same time. During excavation, the main line of the well seat shall be on the same axis as the pipe in the pipe trench. The pit slope is consistent with the pipe trench slope. During pit excavation, the foundation soil shall not be disturbed for over excavation; If the foundation soil is disturbed, relevant provisions of the current Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering GB50268 shall be followed,
Published on: March 5, 2021 Number of hits: 34
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