Can the neck thickness of butt-welded flanges with a neck of the same pressure class vary?
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Can the neck thickness of butt-welded flanges with a neck of the same pressure class vary? For example, the flange of WN100 (B)-16RF might have various neck thicknesses?
According to ASME standards, the neck thickness of butt-welded flanges with the same pressure class should be consistent. For example, the flange of WN100 (B)-16RF should have a fixed throat thickness; there are no various options for the throat thickness. .
According to the equal strength theory, flanges made of different materials have varying mechanical properties, which leads to connections with unequal wall thicknesses. Just follow the corresponding connection type.
Check the wall thickness of the connected pipeline; it is related to the pipeline’s wall thickness. The flange may be selected for this grade after stress calculations, but this does not mean that the pipeline has to be of the same thickness; thus, flange connections for thin-walled pipes using high-poundage flanges come into play.