Generally, elliptical dished heads____________________?

B. ll of the same thickness and diameter

C. Resist half the pressure rating compared to hemi spherical head provided on the cylindrical

D. Are approximately as strong as seamless cylindrical shell having the corresponding I.D and

E. Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for

F. ssure vessels operating above a pressure of 1.5 MN/m2

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