As a new type of construction machine used with concrete pump, the pump tube is like a manipulator. It can quickly and correctly transfer the concrete to the construction surface to any pouring part of the homework surface and carry out continuous pouring. The advantages of the two technologies, the use of welding and flange connection, need to be equipped with complex power cables, cutting tools, welding machines and oxygen and acetylene cylinders, which brings complexity to the construction organization, and there are also leakage And the danger of fire. A pipe connection takes only a few minutes, which simplifies the technical difficulty of on-site operation to the utmost, saves man-hours, and thus does not confuse the quality of the project and improves work efficiency. This is also the overall direction of the development of installation technology.
If the pump tube is operated by conventional welding, many pipes with inner walls treated with anti-corrosion layers will be destroyed. Therefore, the specification of galvanized pipes, plastic-lined steel pipes, steel-plastic composite pipes, etc. shall not be welded or flanged, otherwise secondary treatment is required. His connection method has unique flexibility, which makes the pipeline have the ability of anti-shock, anti-shrinkage and expansion. Compared with the welding and flange connection, the piping system is not chaotic, and it is more suitable for temperature changes, thus protecting the pipeline. Pipeline valves also reduce the damage to the structural components caused by pipe stress. As a new type of construction machine used with concrete pump, concrete pump pipe fittings are like a manipulator. The concrete on the construction surface can be quickly and correctly delivered to any casting part of the homework surface and continuously cast. The advantages of the two technologies have greatly reduced the labor intensity and cost, and improved the progress and quality of the construction
Pump tubes are generally divided into two types, 125 and 150. These two types have high pressure and low pressure. The low pressure type of the 150 type pump tube is a pipe with an outer diameter of Φ159, and the high pressure is a pipe with an outer diameter of Φ168. The low pressure type of the 125 type pump tube is a pipe with an outer diameter of Φ133, and the high pressure is a pipe with an outer diameter of Φ140; the pipe head of the pump pipe is connected to the pipe body through welding, and the connection of each pipe is connected through a special process. It is connected by a pipe card processed by a precision casting process
