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Design calculation for reverse flanges (flat heads) with a porosity of less than 0.5

2018-09-28View Original

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The pressure vessel standards specify that for reverse flanges, the opening ratio must be at least 0.5; but how should reverse flanges with an opening ratio of less than 0.5 be calculated? Is it sufficient to perform opening reinforcement based on the calculation for a flat head? Are there other factors that need to be considered?

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