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BS PD 6550-4:1989 Explanatory supplement to BS 5500:1988. Specification for unfired fusion welded pressure vessels. Section three. Design. Heat exchanger tubesheets
standard by BSI Group, 11/30/1989
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Deals with the three particular problems presented; the tubesheet is highly perforated; in floating head fixed tubesheet exchangers, the tube bundle, tubesheets, and shell form astatically indeterminate structure; tubesheets experience different combinations of pressure and thermal load under different phases of operation.Cross References:
BS 5500