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  • February 12, 2010 at 2:32 pm #5318
    Anton Dooley
    Keymaster

    I came across this question on another forum. I don’t know the answer. Does anyone else?

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    Series Flanges
    I have some old drawings and the flanges are listed in the BOM like this:
    Series 40 blind flange
    Series 30 blind flange
    Series 60 blind flange
    They are on a compresser connections drawn in 1955.
    Does anyone know what these ratings are?

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