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hafizan
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Join Date: Oct 2009
Location: Malaysia
Posts: 5

Circularity Check

10/28/2009 11:01 PM

Is there any code in ASME explain about the tolerance in checking circularity of a vessel?

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lynlynch
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#1

Re: Circularity Check

10/28/2009 11:04 PM
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Re: Circularity Check

10/29/2009 1:09 AM

UG-80
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Re: Circularity Check

10/29/2009 11:10 PM

Yes, 1% (as per ASME Sec VIII) of Nominal ID.....
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Abdel Halim Galala
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Re: Circularity Check

10/30/2009 2:54 AM

Yes, ASME code Section VIII, Division 1, UG-80

Permissible Out-of-Roundness for Cylindrical, Conical, and Spherical Shells :

a. At any cross section (including head-to-shell junctions): Dmax. - Dmin. ≤ 1 % D

b. When the cross section passes through an opening: Dmax. - Dmin. ≤ 2 % D

Where, Dmax. = Max. inside diameter of shell, Dmin. = Min. inside diameter of shell & D = Shell nominal diameter at the cross section under consideration

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