executed,the job required cutting of tube-sheet to shell joint ,now
while re-welding the shell joint,is it mandatory to carry hydrogen
bake-out??
the shell side stream is a reactor effluent ,the reactor is in
hydrogen service,
shell side;
op.temp/press.- 106degC/26kg
tube side;cooling water
MOC;SA516Gr70
shell thick; 22mm
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