Blind Flange Rf ANSI B16.5 and ASME B16.5 these two standards are exactly the same, the actual is the same standard. But because ASME is a complete system, so ASTM and ANSI were included
ANSI has approved ASME B16.5 as the national standard, the 1988 edition of the standard name is called ASME / ANSI B16.5.Galvanised Blind Flange.

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Blind Flange sealing surface in the form of more types, FF, RF, MF, TG, RJ. It is the middle of the flange without holes, used to plug the pipe mouth. Materials are carbon steel, stainless steel, alloy steel.

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Steel Flange Production Process                      

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