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Home > Forums > Mechanical Engineers > Activities > Boiler and Pressure Vessel engineering Forum

boot in pressure vessel

Read More Threads Like This One

mahsa1177 (Mechanical)

18 Jul 12 7:31

usually I have seen boot which is manufactured by pipe but recently I faced to a new subject in drum because the boot was designed with a boot which should be constructed by plate and with plate forming same as manufacturing vessel .
the thk. which was mentioned for shell of boot 8.4 mm and for head of boot 8.4 mm.
I was surprised because did not see before boot which is manufacture by plate.
as I know usually boots are manufacture by pipe .
why and when this type of boot is construct ?

pennpiper (Mechanical)

18 Jul 12 7:48

What size is the vessel?
&
What size is the "Boot"?

prognosis: Lead or Lag

gr2vessels (Mechanical)

18 Jul 12 19:30

The boot material is typically selected on the cost basis, not code or standard's prescriptive rules. If your cost of manufacturing the boot using plate material is cheaper than using pipe, then you use plate (and viceversa).
Best regards,
gr2vesels

jtseng123 (Mechanical)

18 Jul 12 21:40

typically 12" diameter and above, if shop has no pipe ready for use, they will just grasp a plate from trash can (just kidding)or back yard, roll and weld the boot for you. It has been done millions of times. Don't get surprised.

pennpiper (Mechanical)

19 Jul 12 6:44

And remember, some pipe is plate rolled and welded (ERW).

prognosis: Lead or Lag

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