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  1. Minamtungekar

    How to calculate required thickness of reducer as per piping code B31.8

    Hi all, I am designing a scraper trap in which I have two shell courses ( pipes ) on either side of eccentric reducer. I am to design the pipes as per ASME code B31.8, which I did. But how am I supposed to calculate the required thickness for the eccentric reduced ? Also the thickness of both...
  2. Minamtungekar

    Sec VIII Div 2... para 4.5 nozzle calculations formula derivation

    Hi all, I usually tend to understand the principle behind the calculations done by software which brings me back to the code time and again. So while understanding nozzle area calculations in para 4.5 of division 2, I came across formula 4.5.119 and 4.5.120 in which there is an equation showing...
  3. Minamtungekar

    PV ELITE - allowable stress lower for shell than heads.. How and why?

    I am designing a pressure vessel of 1400 diameter and in the output results, internal calculations tab, the allowable stress for the shell is less than that for the ellipsoidal heads. How is that possible? Please help
  4. Minamtungekar

    How authentic is 1-10 in lieu of UG-37?

    Now i have read the related post but it's still unclear to me. My question is simple.. Can I use 1-10 independently in place of UG-37? The reason for me asking this is.. When I read UG-36, it says that when a certain opening diameter limit is exceeded, then you go for the rules of 1-7 in...
  5. Minamtungekar

    Test pressure in Sec VIII division 2, how to calculate bending stresses?

    Dear all, I have designed an exchanger according to division 2, regarding hydro test pressure, the code writes.. "when a hydrostatic test is performed, the hydrostatic test pressure of a completed vessel shall not exceed that value which results in the following equivalent stress limits: General...
  6. Minamtungekar

    Clarification on PFHT from code ASME sec VIII division 1

    Dear guys, Given in UCS-79(d)(4) is a point which says that the reduction by cold forming from the as-rolled thickness is more than 10% at any location where the extreme fibre elongation is more than 5% I have used a plate 14 thick of 516 grade 70 to roll it into a shell of 205 ID with...

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