There are two kinds of PE water supply pipes used uniformly: Jisheng Tongda PE 100 grade water supply pipe and steel mesh skeleton PE composite pipe. PE 100 grade pipeline is a PE water supply pipeline without steel wire mesh inside, which is mainly used in municipal water supply engineering and tap water pipeline engineering. The pressure it bears will change with the wall thickness of PE pipe. Besides PE 100 grade pipes, there are also PE80 grade water supply pipes, which can only be used for PE drainage and sewage pipes and farmland irrigation pipes.
In the production of PE composite pipeline with steel wire mesh skeleton, the pressure value of PE water supply pipeline can be greatly improved through the high integration of polyethylene raw materials and steel wire mesh on the premise of the same raw materials. Therefore, the steel mesh skeleton PE pipe can be used as the fire water supply pipe, and the bearing value of the steel mesh skeleton PE water supply pipe is often 16 kg or above. The molten pe pipe fittings produced by different manufacturers are different, mainly the welding parameters of the molten PE pipe fittings. Some molten pe pipes have three welding parameters, and some have one or two molten PE pipes.
Matters needing attention in construction
First of all, it is necessary to ensure that the molten pe pipe fittings and steel mesh skeleton PE pipes are dry, and there can be no sundries at the joint between the pipe fittings and PE pipes. Moreover, it is necessary to ensure the position of the steel mesh skeleton pe pipe and the molten PE pipe fittings, and pay attention to the welding parameters on each molten PE pipe fitting. When welding, the electric welding machine should be set according to the welding parameters on the fused PE pipe fittings, and the pipe cannot be moved within 3 hours after welding.
According to the different parts of use, electrofusion pipe fittings include electrofusion pe straight pipe, electrofusion pe tee, electrofusion PE pipe 90-degree elbow and 45-degree elbow, electrofusion PE flange head, electrofusion PE pipe cap and other pipe fittings. It should be noted that the fused PE flange head is different from the hot-melt butt flange and the hot-melt socket flange, and the fused PE flange head should use matching fused flange pieces.