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Blind vs WN - B16.47

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ElCidCampeador

Mechanical
Joined
May 14, 2015
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274
Location
IT
Hello,

ASME B16.5 flanges have same thicknesses for blind and WN (for example: WN-RF #300 3" T=28,6mm, blind BL-RF #300 3" T=28,6mm).

Why for B16.47 flanges is different? (for example: B16.47-B WN-RF #300 60" T=150,9mm, blind BL-RF #300 60" T=166,6mm).

I mean, I know why (maybe the fact that diameters are larger), but where could I find an engineering explation, maybe with a stress analysis?

Thanks
 
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