Seoul City Develops Corrosion Prevention Performance Evaluation Device for Water Supply Pipe Coatings... Patent Registered

Development and Patent Registration of Device for Evaluating Water Supply Pipe Coating Performance
Sharing Research Results with Other Local Governments and Related Organizations After Applicability Assessment

[Asia Economy Reporter Lim Cheol-young] On the 11th, the Seoul Water Institute announced that it has independently developed a corrosion evaluation experimental device capable of assessing the performance of coatings on the inner and outer surfaces of water supply pipes on-site and has completed the registration of two patents. This allows for direct on-site evaluation of the performance of pipe coatings, making it easier to manage pipe lifespan and replacement cycles.

Generally, corrosion evaluation devices used to verify the coating performance of water supply pipes can only be used in areas with flat cross-sections. They are difficult to use on large pipes over 1000mm, inclined sections, or curved pipes, so they have been limited to laboratory, research, and inspection use rather than on-site application.

The newly developed device improves upon existing devices, which could only test performance on flat plate-like surfaces, by utilizing electromagnets to easily attach to the inner and outer surfaces of large curved metal pipes, facilitating experiments in various environments. Additionally, the device’s beaker angle can be adjusted to prevent electrolyte leakage during electrochemical impedance spectroscopy (EIS) corrosion evaluation experiments, allowing use even on vertical water pipes positioned at a 90-degree angle.

The newly developed device is expected to be effectively used to evaluate the performance of water supply pipe coatings on-site, helping to determine pipe lifespan and replacement cycles. Furthermore, it is anticipated to have high utility as it can assess coating defects not only in water supply facilities but also in various metal facilities such as ships and gas pipelines.

Han Geum-seok, a researcher at the Seoul Water Institute who developed the ‘corrosion evaluation experimental device,’ stated, “Using the patented device, corrosion prevention performance evaluation of large water supply pipe coatings will be possible regardless of on-site conditions,” and added, “We will strive to enhance the device’s on-site applicability and practical use through additional research.”

Lee In-geun, director of the Seoul Water Institute, said, “Our institute will continue to conduct multifaceted research on scientifically managing water supply and distribution systems to contribute to the supply of clean and safe tap water.”

This content was produced with the assistance of AI translation services.