Vessel is design with stiffner rings at proper line of support with adequate thickness for shell which means shell on it's own is capable of taking loads due to external pressure hence no buckling due to external pressure,
But as you said if a condition arises were nozzle axail load add up...
Thanks fo everyones reply,
If I have designed vessel with stiffner ring for external pressure,
May I now how nozzle external load will effect the design for external pressure,
External load will be axial where as external pressure will be acting in radial from all direction even on nozzle...
Dear all,
Below highlighted is statement in the specification of a clinet, same i have seen in fourth edition of pressure vessel manual, out which first condition we are satisfying in our calculation, but i didn't exactly understood the requirement of second case mentioned in bold letters, Does...
OK but there are other materials listed in Table-5a for which class is clearly mentioned,
but when you see for sa-350 lf2 class is not mentioned,
an in pv-elite for sa-350 lf2 it is taking -17°c as per specification.
Dear All,
I am working on ASME section VIII div.2,
as per permissible material list in Annex-3A of ASME section VIII div.2 and table-5A section II part-d,
SA-350LF2 can be used for pressure vessel manufactured as per ASME section VIII div.2,
But problem is it is not mentioning which class can be...
Dear All,
How can I calculate required fillet leg size for structural welds i.e saddle,
in section VIII divI i could find below mentioned clause,
Can someone elaborate below mentioned clause in the form of equation and define each variable,
UW-18
(d) Unless the sizing basis is given elsewhere...
Thanks for everyone's reply,
I am using sa-105 slipon flange,
as in UCS-57 throat thickness is not exceeding 32mm for the requirement of full radiography nor equal to or exceeding 38mm for the requirement of PWHT,
but then too computer software is showing PWHT and 100% radiography requirement...
Dear All,
I have a 20" shell at the channel side of the heat exchanger for which i am using 600# slip on flange,
design pressure at channel side=1250psig / shell side=300psig
design temperature=185°f
MDMT=-45°f
finished thickness for the shell is 0.944" , hub thickness at small end of the flange...
Thank you.............
I am in a learning process so some times i have to depend on software output to understand the base concept,
its doing the calculation reverse
I am using SS material instead of CS,
But I wanted to take advantage of reduced MDMT since the pressure was not so high and the client didn't had any objection limiting MAWP,
Since my required thickness was 6mm including corrosion allowance I tried to take 8mm with sa-516 gr.70 normalized and...
Dear all,
I have vessel to design at -70 degree Fahrenheit and 50 psi pressure,
I designed it with sa-516 gr.70 normalized at curve D i.e -55degree Fahrenheit,
Required thickness with corrosion allowance 6mm (CA-3mm)I took 8mm to achieve reduced MDMT By limiting MAWP to design pressure,
I got...
Dear all,
I have vessel to design at -70 degree Fahrenheit and 50 psi pressure,
I designed it with sa-516 gr.70 normalized at curve D i.e -55degree Fahrenheit,
Required thickness with corrosion allowance 6mm (CA-3mm)I took 8mm to achieve reduced MDMT By limiting MAWP to design pressure,
I got...
Dear all,
I got a client request to use s355j2+N as doubler pad for pipe,
My concern is about equivalent material for S355j2 +N which belongs to European standards,
I have made a search from my end and i came across sa-572 having equivalent mechanical properties,
but i can't find specifications...