There are many different pipe flanges standards to be found worldwide. In order to allow easy functionality and inter-changeability, these are designed to have standardized dimensions. Common world standards include ASA/ANSI (USA), PN/DIN (European), BS10 (British/Australian), and JIS/KS (Japanese/Korean).

       In most cases these are not interchangeable. That is to say, an ANSI pipe flanges will not mate against  JIS flanges. In addition, many of the flanges in each standard are divi...


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