1. Outdoor laying, in places exposed to sunlight, it is recommended to do shading measures to prevent direct exposure.
2. The buried HDPE water supply pipeline has resistance to thermal stress, and there is no need to reserve the pipe length, and there is no need to reserve the pipe length in winter.
3. When installing HDPE pipes, if the operation space is too small (such as pipe wells, construction in the ceiling, etc.), the electric fusion connection method should be adopted.
4. When the hot-melt socket is connected, the heating temperature should not be too high or too long. The temperature should be controlled at 210±10°C, otherwise it will cause too much molten slurry to be extruded and reduce the inner diameter of the water. The pipe fitting and pipe interface should be kept clean during socketing.
5. When the hot melt butt connection, the voltage is required to be between 200~220V, if the voltage is too high, the temperature of the heating plate will be too high, and the docking can not work normally; Interfaces should be aligned when docking. If the pipe interface of the heating plate is not cleaned, or the heating plate has impurities such as oil, sediment, etc., it will cause the interface to be disconnected and leaking; The heating time should be well controlled, if the heating time is short, the heat absorption time of the pipe is not enough, it will cause the weld curl to be small, if the heating time is long, it will cause the weld curl to be large, and it may also cause virtual welding.
6. When handling pipes and fittings, collision and falling should be avoided to avoid damage to pipes and fittings.
7. After the trench is excavated, the side and base of the trench should be protected to prevent it from being disturbed or damaged.
8. During the installation process, attention should be paid to keeping the pipe clean and hygienic to avoid pollution and foreign matter entering the pipe.
9. Before backfilling, pressure test and flushing should be carried out to ensure the tightness of the pipeline and the smooth flow of water.
10. In the process of use, attention should be paid to inspection and maintenance, and problems should be found and dealt with in time to ensure the normal use and safety of the pipeline.