Calculation for large holes in flat covers
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This post was last edited by gn_1984 on 2015-10-9 09:51. The diameter of the opening in a flange center is larger than that of a regular flange; how should it be calculated?
Just calculate it directly based on the flange.
Or the poster may have analysis software that can be used for stress analysis calculations.
Based on the flange calculations, what type of flange should be chosen? And which inner diameter should be used – that of a full flange or that of a flange with an opening?
In most cases, any type of flange will suffice. The key is to see how the opening in the flat cover of the original manufacturer’s product is connected to the pipe fittings.
The inner diameter can generally be taken as that of the pipe fitting.
Is there any specific basis for choosing a particular type of flange?
Also, what determines the inner diameter of the flange? Is there any basis for it?
Use sw6 to calculate it; understand while computing
For fully welded nozzles, specifically: 1. The flange cover is the flange plate； 2. The weld leg is the flange neck ； 3. The gasket is the gasket for the flange cover ； 4. The inner diameter is the inner diameter of the pipe fitting on the flange cover.
Thank you for the guidance. If full penetration isn’t achieved, can we then avoid using a full flange and opt for some other type of flange instead?