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chemical engineering process equipment and plant design
1. In the design of a shell and tube heat exchanger, the corrosion allowance
(A): all (a), (b) & (c).
(B): for carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm.
(C): for internal cover and tube sheet is provided on both the sides.
(D): need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc.
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