Recent content by mechanical2014

Thanks gr2vessels!!!

Hi, I would like to know the difference between 1. Reinforcing Pad 2. Doubler plate and 3. Insert plate.

Hi Kv, As a thumb rule, if you are getting abnormal tube sheet thickness then you have to go for expansion joints.

Hi All, I have been asked by stress engineer (Piping), if the pressure vessel nozzle is capable of withstanding the reaction load from the Burst of rupture disk (Rupture disk is placed on the vessel nozzle, in between piping and vessel mating flanges). I have never seen such load being...

Hi Evaristo, In my opinion, it is a major repair and qualifies to be given R stamp.

Hi, Epoxy Inserts or application of composite i,e epoxy impregnated glass fibre fabric on the nozzles. If yes, then yes they are Temporary repair only. If you want to go for permanent solution then wait for SD period and replace the nozzle.

Hi Khan, I would prefer fabricated strainer. Yes, ASME allows both.

NO, Its not necessary

Hi, Yes you can. However, if you want to stick to ASME then use ASME Section VIII, Division 2, for saddle analysis.

Hi Gowda, In my opinion, we can't use TEMA for HIGH fin tubes vibration analysis. In TEMA under integrally finned tube, low fins tube are mentioned.

Hi Anolan, If i m getting it right, your's equipment nozzle size is smaller than the line size. If Yes, then it is a normal practice to use reducer (or Expander) to match the nozzle with line. The vessel Design code limit is the equipment flange face.

In my opinion, poor welding and wrong procedure may have resulted in high residual stress and hence cracking.

It's a double pipe heat exchanger but there is no TEMA designation for it.

Funny though but some extra smart client likes to indicate a vertical exchanger with prefix V. (Although still not answering your question but some light in probably right direction).

ASME SECTION II-A. Heat treatment section 5 of SA 516. FYI! Normalized rolled plate is nothing but two process combined into one(As rolled while undergoing normalization.