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ajih98
Participant

Join Date: Mar 2012
Posts: 2

Calculated Blind Flange Thickness Versus Standard

04/08/2012 11:47 AM

I just wonder why calculated blind flange thickness using ASME section VIII division I is higher that standard blind thickness as per ANSI B16.5?

let say:

Material A105

Design Pressure: 102 barg

Design Temperature: 38 Degree C

Gasket: Spiral wound

Rating: 600#

By using ASME VIII formula, my calculated thickness is 134mm

Meanwhile, the standard flange thickness according ANSI B16.5 is 101.6mm

Any body can tell me what is the reason?

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 ajih98
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bigg
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Join Date: Jun 2010
Posts: 1296
Good Answers: 104
#1

Re: Calculated Blind Flange Thickness versus Standard

04/08/2012 12:47 PM

I'm not absolutely sure, but I think it's related to the allowable stress difference in the 2 codes.
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cingold
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Join Date: Nov 2007
Posts: 519
Good Answers: 11
#2

Re: Calculated Blind Flange Thickness Versus Standard

04/09/2012 9:01 AM

Did you check ASME B31.3? I believe the two blind flanges match in those two codes.

I think you're talking about the difference in pipe flanges (ASME B16.5) and blind flanges that can be used as vessel heads (UG-34).
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jackchen
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Join Date: Nov 2010
Posts: 39
#3
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Re: Calculated Blind Flange Thickness Versus Standard

04/15/2012 8:36 PM

Spam: This post was deleted because it contained advertising outside the Commercial Space forum. Please review Section 14 of the CR4 Site FAQ about advertising.
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