3.1 Simple operation
The connection operation of grooved pipe fittings is very simple, no special professional skills are required, and ordinary workers can operate after simple training. This is because the product has incorporated a large number of delicate technical parts into the finished product in a factory manner. It takes only a few minutes to connect a pipe fitting, which simplifies the technical difficulty of on-site operations to the greatest extent, saves man-hours, and thus stabilizes the quality of the project and improves work efficiency. This is also the general direction of installation technology development.
The traditional welding and flange connection pipe connection method, not only requires welding workers with corresponding skills, but also time-consuming, workers are difficult to operate, and there is welding fumes pollution. Due to differences in operating space and welding skills, welding quality and appearance are difficult to achieve satisfactory results, which affects the overall quality of the project.
In addition, because the grooved pipe fittings are finished products, the required operation space on the site is small, and the installation can be realized by the wall and corner. The operation difficulty is greatly reduced, thereby saving the floor space and beautifying the effect of pipeline installation.
3.2 The original characteristics of the pipeline are not affected
The connection of grooved pipe fittings only extrudes a groove on the outer surface of the connected pipe with a rolling groove machine without damaging the inner wall structure of the pipe. This is a unique technical advantage of grooved pipe fittings. If the traditional welding operation is adopted, many pipes with anticorrosion coating on the inner wall will be damaged. Therefore, the specification stipulates that galvanized pipes, plastic-lined steel pipes, steel-plastic composite pipes, etc. must not be welded and flanged, otherwise secondary treatment is required.
3.3 is conducive to construction safety
Using grooved pipe fittings connection technology, the site only needs cutting machines, roll groovers and button bolts, convenient construction organization. The use of welding and flange connection requires complex power cables, cutting tools, welding machines, oxygen and acetylene gas cylinders, etc., which brings complexity to the construction organization, and there are also hidden dangers of electrical leakage and fire . At the same time, the welding slag generated by welding and gas cutting will inevitably fall into the inside of the pipeline. During use, pipeline valves and even equipment are easily blocked, and the water quality in the pipeline is also polluted.
In addition, welding and flange connection inevitably require long-term high-strength aerial work, and are also prone to production safety accidents.
3.4 Good system stability and easy maintenance
The connection method of grooved pipe fittings has unique flexible characteristics, which makes the pipeline have the ability of anti-vibration, anti-shrinkage and expansion. Compared with welding and flange connection, the stability of the pipeline system is increased and it is more suitable for temperature changes to protect The pipeline valve parts are also reduced, and the damage of the pipeline stress to the structural parts is reduced.
Since the connection operation of the grooved pipe fittings is simple, the required operation space becomes smaller, which brings many convenient conditions for future maintenance. When the pipeline needs to be repaired and replaced, only two pieces of clamps need to be loosened to arbitrarily replace, rotate and modify a section of pipeline. There is no need to damage the surrounding walls, reducing maintenance time and maintenance costs.
3.5 Economic analysis
Trench pipe fittings are easy to connect and operate, saving time and labor, so they have good economic benefits. Many articles have done economic analysis and believe that "the use of clamp connection, although the price of a single fitting of the clamp is higher, but the overall efficiency of the entire pipe network installation is higher than the flange connection." In the article comparison, the flange connection is treated as secondary galvanizing (this is also necessary according to the specification).
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