ASME EN JISB 05B DN80 PN10-100 Stainless Steel Plate Flange

The first step in threaded flange manufacturing is material selection (commonly carbon steel, stainless steel), then cutting the raw material into blanks; the second step is turning: first turning the flange outer diameter and end face, then precisely turning the internal thread (thread accuracy must meet ANSI/GB standards); the third step is sealing surface treatment (e.g., flat face, raised face) to ensure sealing fit; finally, non-destructive testing (such as magnetic particle inspection) and pressure testing are conducted to ensure no defects.Key Application：Low-pressure water supply pipelines and indoor heating systems.