Flange Standards and Dimensions – ASME, JIS, and DIN Compared
1. IntroductionFlanges connect everything — pipes, valves, filters, vessels — but people rarely look at the standard behind the bolt circle. Let’s break down how ASME, JIS, and DIN flanges differ in size, pressure class, and application.2. Major Flange Standards Standard RegionPressure ClassMaterialRangeNotesASME B16.5US150–2500 lbCarbon Steel, StainlessMost common worldwideASME B16.47 A/BUS75–9..
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