Steel skeleton composite pipe adopts high-quality materials and advanced production technology to make it have higher pressure resistance performance. At the same time, the composite pipe has excellent flexibility and is suitable for long-distance buried water supply and gas pipeline systems. Steel skeleton composite pipe construction must have detailed plans and arrangements, not at all sloppy, the general steel skeleton composite pipe project is often millions or even tens of millions, if you do not plan to blindly go to the construction, then caused The loss is not measurable, so there must be a detailed construction plan before construction. According to the drawings, accurate construction submissions are made so as to ensure that no problems occur during construction. So what do you need to pay attention to when constructing a steel skeleton composite pipe ? Let me take you to learn more about it. Steel skeleton composite pipe standard According to CJ/T189-2004 "Steel wire frame plastic (polyethylene) composite pipe and pipe fittings" standard, steel frame composite pipe standard specifications are 50,63,75,90,110,140,160,200,225,250,315 , 355, 400, 450, 500, 560, 630 counts seventeen kinds, the pressure has 0.8, 1.0, 1.25, 1.6, 2.0, 2.5, 3.5 seven species. The specification of the gas steel skeleton composite pipe is the same as that of the seventeen kinds, and there are five kinds of pressures: 0.4, 0.6, 0.8, 1.0, 1.25. Steel mesh skeleton composite tube is divided into three layers, namely core tube, steel wire layer and outer PE layer. The core tube and the wire wound layer are used to withstand the internal pressure of the tube, and the outer PE layer is mainly used for the welding connection. The core tube and the outer PE layer are made of PE80/PE100 raw materials for hot-melt extrusion molding. The steel wire winding layer is composed of HDPE modified material and left and right anti-winding steel wire. The modified HDPE and HDPE can be melted under heating conditions. . At the same time, its polar bond and steel have extremely strong adhesive properties (200N/25mm, ASTM D903). This high-performance adhesive is a new product of the internationally renowned large company (DuPont) and has been widely used as a steel-HDPE interface material in the domestic West-East Gas Pipeline project. Features: 1, long service life, under standard conditions, at least safe for 50 years. 2, with excellent corrosion resistance. 3. The inner wall is smooth and the wall of the pipe is not fouled, and the conveying resistance is small. The same inner diameter water transfer can increase the circulation by 30% compared with the steel pipe. 4, excellent wear resistance, its wear resistance is 4 times the steel pipe. 5, excellent toughness, even if the pipeline is severely deformed it is difficult to break, because of its excellent seismic performance. 6, the pipe is light and flexible, with excellent construction performance and lower construction cost. Steel skeleton composite tube price The price of steel skeleton composite pipes is 5 yuan/meter to 10 yuan/meter. Note: This price is for reference only! Due to geographical differences, of course, the price will be different. For more details on the prices, please refer to the local distributors! Steel skeleton composite pipe construction Laying and installation of steel skeleton composite pipe: Before the steel skeleton composite pipe is installed, the pipe must be laid according to the drawings, and the embedded parts must be retested. After the alignment of the centerline of the steel skeleton composite pipe and the elevation of the retesting supporting pier is correct, the pipeline installation is started. According to the situation on the site, after avoiding underground cables and pipelines, down chain and corresponding tonnage cranes can be used. The steel skeleton composite pipe enters the pipe ditch, and the pipe alignment work is performed to ensure that the distance between the pipe and the pipe ditch wall and the two pipes meets the requirements. After the position of the pipeline is adjusted, the fixed bracket shall be welded and the distance between the pipeline interface and the bracket shall be greater than 100 mm. The steel skeleton composite pipe is placed in the ditch, and the segments are connected in a straight line to make a connection. The connected pipeline must find a good slope. The drain valve is installed in the inspection well. Find the steel skeleton composite pipe, so that the distance between the pipe and the pipe trench wall and the two pipes can ensure that the pipe can move laterally. The centerline between the two fixed supports of the same pipeline shall be a straight line. The deviation per 10 meters shall not exceed 5 mm. The deviation of the entire steel skeleton composite pipe in the horizontal direction shall not exceed 50 mm. Flange connection: When the flange is connected with the pipe, the end of the pipe inserted into the flange plate is 1.3-1.5 times the pipe wall from the spare inner end face of the flange to facilitate welding. When welding the flange, it must be ensured that the pipe is perpendicular to the end face of the flange and that the flange is used to measure the distance between the two sides by 90°. Heating steel skeleton composite pipe groove type connection: Machine preparation: Select the machine that meets the requirements of rolling machine, hole cutter and pipe cutting machine; Pipe preparation: Cut the pipe vertically, clean and process the groove of the pipe end, be careful when the pipe bursts during processing, and sharp edges appear. The sharp edge may damage the seal ring. , Groove width and depth, must meet the groove technical standards. Check and lubricate the seals: Check the seals to ensure that the seals are correctly sized. Apply a thin layer of lubricant to the outside of the seal and the inner seal lip. Care should be taken not to adhere particulate impurities to the seal surface. Use lubricant as a seal fitting. A good seal lubricant is the basis for preventing wear and possible damage to the seal. The seal ring installs the slide seal to the tube end, making sure that the seal lip does not hang over the tube end. Editor's summary: There are actually so many learnings in the steel skeleton composite pipe, which not only covers a wide range of applications, but also has various specifications. In order to overcome the problems of various bad environments, it can be said that environmental problems have basically been solved with steel-frame composite pipes. The three-story structure inside and outside China gives maximum protection to the lines inside the steel skeleton composite pipe, and it also has excellent toughness. Even if it encounters an earthquake, it will not break easily, revealing the lines inside. In the event of an earthquake, the lines protected by steel skeleton composite pipes will not be exposed, which greatly reduces the risk of electric shock to personnel. House Decoration Precautions Construction Installation Home Decoration Precautions Decoration Precautions House Decoration Precautions
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