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  • Users: rcr22b
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  1. rcr22b

    measuring freon added by volume

    I want to charge a copper tube with 50% by volume of freon 134a. I know the volume of the tube is 15.9 cubic inches but I only have a pressure gage. The Freon can contains 12 oz by weight and I have no idea how much to add to the tube or how to measure it accurately. This is not for an air...
  2. rcr22b

    Correct hole size for a given O-ring

    The O-ring is AS568a -008. This is a nominal size 3/16" ID x 5/16 OD" x 1/16" wide. For a shaft .311" I decided on a gland grove of .0625" depth x .070" wide. Tolerance on the shaft is +.000 / -.002. The shaft is mild steel. And the application is a compression screw running in 6061...

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