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  1. Wayne Falco

    300 Series Flange

    Greetings, I have been assigned to change our 150 psi for 1-1/4" pipe to 300 psi. I have near zero knowledge of piping. I am attaching what I am now using for 300 psi flanges. My real question currently is what the dimension currently at .298 should be? How much compression? I can't seem to...

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