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Consider External Loadings of Flange MAWP Rating 1
- Thread starter thermmech
- Start date
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1
- #2
see this FAQ...
- Thread starter
- #3
jehan17718
Mechanical
Thernmech,
When we consider a flange for external loads we compute the equiv pressure (Peqv). This is then compared with the B16.5/16.47 ratings. This is used typically only when using standard b16.47/16.5 flanges as girth flanges and is not typically applicable to nozzle flanges.
Peqv=P+4W/(PI*G^2)+16M/(PI*G^3) where
P= design pressure inclusive of the static head.
W= Axial acting force
M= Moment
G= Gasket reaction diameter (as defined in ASME S8D1 code)
ABOVE COMMENTS MAY BE HOW COMPRESS COMPUTES THE SAME. Hope this helps.
-jehan
When we consider a flange for external loads we compute the equiv pressure (Peqv). This is then compared with the B16.5/16.47 ratings. This is used typically only when using standard b16.47/16.5 flanges as girth flanges and is not typically applicable to nozzle flanges.
Peqv=P+4W/(PI*G^2)+16M/(PI*G^3) where
P= design pressure inclusive of the static head.
W= Axial acting force
M= Moment
G= Gasket reaction diameter (as defined in ASME S8D1 code)
ABOVE COMMENTS MAY BE HOW COMPRESS COMPUTES THE SAME. Hope this helps.
-jehan
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