The blank flange is manufactured through precision casting, which is much finer than the common sand mold casting method, significantly improving the quality. The stamping parts are also less likely to experience issues such as tissue relaxation and porosity.

Blanks for flanges are manufactured using various processes, each with its own advantages and disadvantages. Large diameter flanges made from intermediate plates are crucial for operations at the joint location, where poor welding can lead to leaks. In the case of forged flanges, an outer skin forms after the flange is finished.Stamping PartsLeakage occurs when the flange is pressed on the stamping parts.

For Flanges, the quality of the product itself is crucial. Without production equipment and technology that meet the standards, quality cannot be maintained, and high-quality products cannot be produced. This applies to flange blanks as well.

Inspection of the internal quality of the flange blank itself. This includes quality conditions that cannot be detected through visual inspection. It encompasses checking the internal properties of large-diameter flanges as well as the mechanical properties of the flange blank. Chemical composition analysis is also required for the main components and large flanges.