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Hello, Can anybody help regarding below questions. What is the experience and qualification required for to perform design activity ASME SEC VIII DIV.2 vessel? As per 2-J.3.3 designer shall as a minimum hold the qualification minimum of 4 yr of experience in pressure vessel design. My question...

Pls refer UCS-23 of ASME sec VIII div-1

Rakesh2560, offcourse forging material is always better than plate . But if your contract asks for SA-516 gr. 70, then you can provide SA-516 gr. 70. Code allows both materials for the tubesheet application.

Thank U so much Mike!!

SnTMan, I have AES type exchanger. Can u check flange calculations for floating head in PVElite. Does it takes 200% moment for floating head flange??? Regards, Atish

SnTMan, codecalc using 200 % moments for rigidity but PVElite not even bothered about rigidity.

SnTman, can u check split flange calculations in PVElite pls.

SnTMan, which software u r using???

Dear All, As we know, we shall design the split flange for the moment which is double of the maximum of seating or operating moment. Shall we use the same moment i.e. double of maximum for rigidity calculations??? Or we can simply use max. of operating or seating.

Hats Off TD2K

I think I am not able to explain my problem in right way. What I want to know is, code has given higher and lower allowable stresses for same material e.g. SA-240 Gr. 316L. Lower allowable stresses shall be used for flange or strain sensetive applications. These lower allowable strsses are 2/3...

SnTman, I know the theories of failure. 2/3 of yield is taken as allowable for flnage design. But what is the basis of arriving at the higher values of allowable stresses for same material.?????

SntMan, I would like to know how these ( higher and lower) values of allowables are derived. Whats is the theory / basis behind it?

Dear Racookpe1978, Section-II part D provided 2 types of allowables for same material e.g.SA-240 gr. 316L. When we use this material for flange design ( or we can say strain sensetive applications), code cautions to use lower allowable stress ( note G5 of section-II part D). But for other...

Hi all, may I know whats the basis for providing low allowable stresses for flange applications??? Thanks in advance Atish

SnTman / MIKE could you bother to explain me the basis / theory behind this UHX-14.2 ( same tubesheet thickness ) ??? Can u help? Thnkas in Advance, Atish

Dear Friends, bellow is my query for UHX-14.2 I have designed a HX , TEMA configuration is AEW. I have calculated the thicknesses for floating as well as stationary tubesheets, which are 17 mm and 19 mm respectively. I have provided Stationary tubesheet of 23 mm. Floating tubesheet thickness...

Hello, can anyone tell me how to calculate MAWP for tubesheets??