Ensuring Integrity in PE Steel Wire Mesh Skeleton Systems Through Pressure Testing
Pressure testing is a critical procedure in the installation and maintenance of PE (polyethylene) steel wire mesh skeleton systems. These systems are widely appreciated for their durability, flexibility, and resistance to corrosion, making them ideal for various applications including water supply, gas distribution, and industrial pipelines. When conducting a pressure test, the equipment system is first stabilized, and then the pressure is increased to 1.5 times the working pressure. This elevated pressure is maintained for one hour, during which technicians meticulously monitor the pressure gauge and conduct regular patrols along the pipeline to detect any signs of leakage or significant pressure drops. The absence of such issues during the test period is indicative of the system's integrity and readiness for service.
Welding plays a crucial role in the assembly of PE steel wire mesh skeleton systems, particularly when replacing electric fusion pipe fittings. It is imperative that the interior of the pipe remains dry during this process to ensure a secure and lasting bond between the components. Post-welding, the system must be allowed to cool for a minimum of 120 minutes before being subjected to a water pressure test. This cooling period is essential for the stabilization of the welded joint and the overall structural soundness of the pipeline.
The physical and mechanical properties of the PE material are significantly enhanced through the stretching process, particularly in the direction of the stretch. This improvement contributes to the superior performance characteristics of the steel mesh skeleton composite pipe, which has gained popularity in modern infrastructure projects due to its advanced technological features and material composition. Strict adherence to prescribed parameters such as heating time, temperature, connection pressure, and cooling time is vital for achieving optimal welding outcomes. The use of high-quality raw materials further enhances the reliability and longevity of the welded joints, as evidenced by the bright color and robustness of the welder's cutting strips.
In terms of maintenance, minor issues such as sand holes in PE water supply pipes can often be addressed through the direct application of flange gate valves. However, when faced with extensive damage to the pipeline, alternative repair methods may be necessary. The economic benefits of using PE steel wire mesh skeleton pipes are evident in their thinner outer diameters, which translate to reduced material costs and lower transportation expenses. Furthermore, the material's favorable expansion characteristics result in minimal stress-induced by seasonal temperature fluctuations, thereby mitigating the risk of axial deformation during pipe laying operations.
