Process Equipment and Plant Design
Seamless pipe is made

Both B and C
From rolled strips formed into cylinders and seam-welded
By extrusion & casting into static and centrifugal molds
By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer point and further reducing it by rolling gas drawing

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Process Equipment and Plant Design
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when

Both the functions of condensation & sub cooling are carried out in a single unit
Hydrostatic head is required for refluxing the condensate
Only the function of condensation is to be carried out
Sub cooling of condensate is desired

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