Process Equipment and Plant Design
Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is
Less
Same
More or less depending upon the pressure & temperature inside the vessel and the nature of the fluid contained therein
O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres
Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch
All of these
Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter
EXAMIANS