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Sec VIII Flange Hub Radius

Sec VIII Flange Hub Radius

Sec VIII Flange Hub Radius

(OP)
Is there are code requirement for slip on flanges to have a corner radius at either the flange end or loose end?

RE: Sec VIII Flange Hub Radius

Toomuch,
"the flange end or loose end"
What does this mean?

prognosis: Lead or Lag

RE: Sec VIII Flange Hub Radius

(OP)
The end of the hub at the flange face or the end of the hub at the free end of the flange. Normally the large end and small end but in the case I'm looking at the hub is straight, not tapered.

RE: Sec VIII Flange Hub Radius

toomuchespresso, radius not required at the bore, but required at hub OD. See Fig 2-4, Gen Note a). Good practice to break sharp edges though.

Regards,

Mike

RE: Sec VIII Flange Hub Radius

(OP)
Thanks. I found my answer finally. Sketch (3) does not call out the radius specifically but Note 2 says to refer to Sketch (2) for dimensions not shown. This leads to Note 3 which states that "r to be at least 0.25g1 but not less than 3/16 in."

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