1. Detection method
Damage detection of PE polyethylene pipe fittings can start with an appearance inspection. Carefully observe the surface of the pipe fittings to see if there are obvious cracks, scratches, deformations or bulges. Small cracks may not be easy to detect in the early stage, but may gradually expand over time. Scratches may weaken the strength of the pipe, especially when under pressure. Deformations and bulges may indicate problems with the internal structure. In addition, pressure tests can be performed. Fill the pipe system with water or gas, apply a certain pressure and observe whether the pressure is stable. If the pressure continues to drop, it means that there may be a leak point and further investigation is required.
2. Determine the location of the damage
Once possible damage is found, the specific location of the damage needs to be accurately determined. Professional detection equipment, such as water leak detectors, can be used. For some buried PE pipes, ground penetrating radar and other technologies can be used to assist in locating the damage point. In the process of determining the location, a comprehensive analysis should be conducted in combination with the layout of the pipe, the time of use, and the factors that may be affected. If it is in a complex pipe network, it may be necessary to conduct a step-by-step investigation to reduce the scope of the damage.
3. Repair method
For smaller cracks and scratches, special PE repair glue can be used for repair. First clean the damaged part, make sure the surface is dry, free of oil and impurities, then apply the repair glue evenly to the damaged part and cure it according to the product instructions. For larger cracks or holes, hot melt welding can be used. Cut off the damaged part and use hot melt welding equipment to weld the new pipes and fittings to the original pipes. During the welding process, the temperature and pressure must be strictly controlled to ensure the quality of welding. For the parts that are severely damaged and cannot be repaired, the entire section of pipes and fittings needs to be replaced, and products with the same specifications and materials as the original pipes need to be selected, and the connection must be firm.
4. Preventing damage again
After the repair is completed, some preventive measures need to be taken to avoid damage again. Strengthen the daily maintenance and management of the pipeline system to avoid external force impact, excessive bending and chemical erosion. Check regularly to detect potential problems and deal with them in time. For buried pipelines, be careful to avoid heavy machinery operations above them. At the same time, during installation and use, operations must be strictly carried out in accordance with relevant specifications and standards to ensure the safe and reliable operation of the pipeline system. This can effectively extend the service life of PE polyethylene pipe fittings and reduce the chance of damage.
