The threading tube has high compressive strength, the pvc thread working pressure exceeds the threading tube, the surface is smooth, the fluid resistance is small, it does not scale, and it is not suitable for breeding organisms. The thermal coefficient is small, and the deformation is not shortened. Conservative device connection. The epoxy plastic coating of the power pipe threading pipe is more effective to deal with the corrosion of water, buried and acid, alkali, and salt to the metal pipeline, and the service life can reach more than 50 years. Wires are buried in walls and must be threaded, usually PVC threading tube/PE threading tube: affordable, flexible, and good insulation. Usually the family chooses PVC threading pipe/PE threading pipe is very good. Just choose the strong one, which is to step on it with your feet. The one that will not be stepped on is good. The final reminder: threading pipe, threading pipe, PE double No matter what kind of threading pipe is used for wall corrugated pipe, the wires must not have joints in the pipe.
The installation position of the steel mesh skeleton composite pipe overhead pipeline fire-fighting water supply pipe requires that we should add anti-corrosion materials to the construction of waterproof protective covers and anti-freezing measures that do not affect traffic and the opening of doors and windows according to the specification distance, which is conducive to operating efficiency. Where the horizontal pipe is connected with pipe fittings such as elbow, tee, cross, reducer fixed brackets capable of preventing horizontal displacement of the pipe should be installed at both ends of the pipe according to the axial thrust generated by the internal pressure of the pipe design. When the length of the horizontal pipe is greater than m, a bracket that can prevent the horizontal displacement of the pipe shall be installed every m; the horizontal pipe bracket shall not be installed on the joints and fittings of the pipe. The clearance between the bracket and the pipe joints and the outside of the pipe fittings shall not be less than the minimum distance required by the mounting bracket. When using a metal bracket, a rubber elastic protective filling layer should be set between the contact surface with the pipeline. When there are local or small cracks or holes in the outer wall of the PE pipe, the water in the pipe can be drained first, and the damaged part can be cleaned with cotton yarn, and then the base surface is brushed with cyclohexanone, and then the plastic with good water resistance can be painted Adhesive and remove the plates of similar shapes and sizes from the corresponding parts of the unused pipes, bond them, wrap them with geotextiles, and fix the soil after a few hours of curing.
Some unexpected quality problems often occur during the production of PE pipes, which are generally caused by problems with equipment or raw materials. PE pipe manufacturers must establish strict evaluation procedures for raw material suppliers, select appropriate raw materials, and perform appropriate treatments according to the testing conditions of raw materials. The production of high-quality polyethylene pressure pipes is highly dependent on the comprehensive output capacity of the equipment. Pipe manufacturers must fully investigate and demonstrate when selecting equipment to choose equipment with higher cost performance. The pipe manufacturer should establish strict operating procedures and technological procedures and strengthen the process and control, in order to achieve the goal of not only controlling the quality of pipes but also reducing production costs. The process setting of pressure pipes and the resolution of quality problems in the production process require a lot of production experience.
This requires manufacturers to accumulate a large amount of raw data, analyze and summarize, and guide production to achieve a steady improvement in product quality. Hot melt butt, hot melt splicing and electrofusion welding are three different types. At the same time, considering that PE pipes require very high requirements for on-site technicians due to hot melt splicing during construction, the electrofusion welding process method It is not particularly easy, because the existing shortcomings and advantages are occupied, so it is less used at home and abroad. You can consult the professional PE water supply pipe manufacturer Dalian Jinshun Yihong Pipe Industry Co., Ltd. PPR water pipes are stronger than PE water pipes, and PE water supply pipes are more flexible than PPR water pipes. This is determined by the nature of the material. However, it is meaningless to overemphasize the cold brittleness of PPR water pipes. PPR water pipes have been used domestically for more than ten years. Production companies have gradually reduced the hidden dangers caused by different methods of handling through effective packaging and strengthened publicity. When using under low temperature conditions, any pipeline must be insulated, otherwise it will cause volume expansion due to icing.
