1. Outdoor outdoor laying, where there is sunlight, it is recommended to do the masking.
2. Embedded HDPE water supply pipe, the pipe with DN less than 110 will be installed slightly in summer, and the pipeline with DN greater than 110 will be resistant to thermal stress due to sufficient soil resistance, so there is no need to reserve pipe length; In winter, there is no need to reserve administrator.
3. When the HDPE pipeline is installed, if the operating space is too small (for example, the pipe well, the construction in the ceiling, etc.), the electric fuse connection shall be adopted.
4, the heating temperature of hot melt socket connection, not too high, too long, the best temperature control in the 210 plus or minus 10 ℃, otherwise will cause the parts in extrusion of magma is overmuch, reducing water inside diameter; The pipe fittings or pipe joints should be cleaned when the socket is inserted, otherwise it will cause the leakage of the socket. At the same time, be careful to control the Angle and direction of the pipe fitting to avoid rework.
5. When the fusion connection is connected, the voltage is required to be between 200 and 220V. If the voltage is too high, it will cause the heating plate to be too hot and the voltage is too low, and the docking machine cannot work properly. When docking, the interface should be aligned, otherwise the docking area is not enough, the welding strength is not enough, and the edge is not formed. When the heating plate is heated, the pipe joints are not cleaned, or the heating plate is contaminated with oil, sediment and other impurities. The heating time should be controlled well, the heating time is short, and the heating time of the pipe material is not enough. It will cause the edge of the welding seam to be too small, and the heating time will be too long, which will cause the welding seam to be too large, which may form the false welding.