2018-10-15
Before using PE pipes, sufficient preparation should be carried out.
PE pipe and fittings are widely used in the construction industry due to their excellent advantages. However, before using PE pipes and fittings, it is essential to make thorough preparations to avoid any problems later on. Before installing PE pipes and fittings, it is necessary to excavate trenches. The excavated soil must be stored in a designated, reasonably organized area that is at least two meters away from the trench itself. The excavated earth should be promptly transported out of the site to prevent interference with subsequent work. During the installation of PE pipes and fittings, mechanical equipment must be used; the excavation depth should be controlled so that the bottom of the trench remains at least 20 centimeters above the designed elevation.
2018-10-15
What types can PE pipes and fittings be divided into?
PE pipes and fittings are widely used in various fields such as urban and rural water supply, building drainage, and ground-source heat pumps. Next, let me introduce you to the classification of PE pipes and fittings: First, according to their intended use, they can be categorized into building and municipal water supply and drainage pipes, outdoor gas pipes, agricultural irrigation pipes, conduit pipes for wiring, sewage pipes, and more. Second, based on pipe material quality and structure, PE pipes can be divided into ordinary PE pipes, aluminum-plastic composite pipes, steel-plastic composite pipes, double-wall corrugated pipes, spiral pipes, and silicon-core pipes for optical cables, among others. Third, according to the density of the raw materials, they can also be classified into high-density pipes, low-density pipes, and medium-density pipes. That’s all for now.
2018-10-15
How to Conduct a Water-Tightness Test on PE Pipe and Fittings
PE pipes and fittings can be used in water supply pipelines. In addition, there are also UPVC pipes, steel pipes, gray cast iron pipes, glass-fiber reinforced plastic sand-casing pipes, and ductile iron pipes, among others. For the hydrostatic test of PE pipes and fittings, the test pressure shall not exceed the pipe’s pressure rating or 1.5 times the lowest pressure rating of any component in the system. Once the pipeline pressure reaches the test pressure, it should be held for a specified period to allow the temperature of the test medium inside the pipe to equilibrate with the ambient temperature of the pipeline. After both the temperature and pressure have stabilized, timing can begin. Under normal circumstances, the hydrostatic test should be maintained at the test pressure for 24 hours. At the end of the test, if no obvious leakage or pressure drop is observed, then...
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