Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations JAE on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: israr1
  • Order by date
  1. israr1

    Nozzle pad

    Refer UG-36, UG-37 & UG-40 of ASME SEC VIII DIV 1.
  2. israr1

    Impact Tested Without PWHT

    SZX, Also if you see code, preheating is required for thickness within range of 1.25 to 1.5in and above 1.5in PWHT is mandatory. In compress as far i know there is no provision to consider Pre-heating for thickness within 1.25in to 1.5in. Hence, it might be considering PWHT directly for...
  3. israr1

    Flange bolts ( Contact metal-metal both inside and outside the circle)

    Elb.ab, Just have a look at Taylor forge bulletin 502. I guess it will solve your query.
  4. israr1

    Nozzle loads consideration for Flange rating selection.

    Dear all, Addition to all above information,Please see below: ASME Section VIII Division 1 and ASME B16.5 do not include calculations to address standard flanges subject to loadings other than internal pressure and temperature. Therefore, in accordance with U-2(g), the Manufacturers subject...
  5. israr1

    UCS-6 (b)(3)

    Thank you very much guys. So far from above i understand that SA 36 can be used for thickness over 5/8in for non stamped vessel. Mjcronin, Operating pressure is around 50 psig @ 160F. Also Vessel ID=3m & length=9m.
  6. israr1

    UCS-6 (b)(3)

    metengr, Thank you very much for your instant reply. Quote: "Since the vessel will not be stamped, it is not a code vessel. So, you are not required to follow Section VIII, Div 1. It becomes a contractual matter as to what you want to pick and chose for ASME Section VIII, Div 1." Kindly refer...
  7. israr1

    UCS-6 (b)(3)

    Hey folk, I was going thru UCS-6 & got stuck to it. As per UCS-6 (b)(3), SA 36 (plate) can be used for pressure vessel provided thickness does not exceed 5/8in. Question 1: Why code allows SA 36 only upto thickness of 16mm and why not more than 16mm? What is the basis for setting limit to...
  8. israr1

    ASME B36.19M (Stainles steel pipe) is not shown as reference on Section VIII Div 1, 20015 Ed

    aard, Refer interpretation VIII-1-83-302 which states to consider thickness for SS pipe as per ASME B36.10. Extract of same is attached for your reference Also for pipes of size upto 8inch,ASME B36.19 & B36.10 gives same thicknesses for particular schedule...
  9. israr1

    Allowable stresses and material test reports

    For Sec I & III, i dont know. But for Division VIII, you cannot go for allowable stress higher than that specified by code. Better if you can share the loading for which you are apprehensive.
  10. israr1

    UW-11(a)(5)(-b) Spot

    loilfan, I think interpretation VIII-79-85 will answer all your queries.http://files.engineering.com/getfile.aspx?folder=07084a26-825d-4fcf-ac45-c5d46c61af96&file=Interpretation_VIII-79-85.pdf
  11. israr1

    Add nozzle on Blind in PVElite

    Create a separate model for blind and mount the nozzle on it.
  12. israr1

    May SA-179 use for construction heat Ex design to ASME SC-VIII Div.2

    Refer Table 3 in ASME SEC VIII DIV 2 and will get your answer.
  13. israr1

    Corrugated rectangular tank

    Thank you all for your guidance. Below is my understanding for checking / deciding corrugation dimensions: In absence of stiffeners, unstiffened length would be same as length of tank (if corrugation is run along the length). Considering unstiffened length (tank length), bending moment would...
  14. israr1

    Corrugated rectangular tank

    In my understanding, moment of inertia of provided corrugation need to calculated and same shall be compared with required moment of inertia. Or corrugation dimensions shall be finalized on the basis of required moment of inertia. Kindly suggest.
  15. israr1

    Corrugated rectangular tank

    Dear All, Can you edify me on design of corrugated rectangular tank. Earlier i have designed rectangular tank as per Roark's formulae. But this time, it is corrugated tank : so per my understanding it would be difficult to add stiffeners on wall. Thus, without stiffeners bending stresses...
  16. israr1

    Stack design_STS-1

    DSB123, Exactly, i do agree with you. But i am not able to understand the reason for statement in Dennis Moss (See the attachment- Extract from Dennis Moss). http://files.engineering.com/getfile.aspx?folder=77d5b033-fdc3-420a-9658-99387db24efc&file=Extract_Dennis_R._Moss.pdf
  17. israr1

    Stack design_STS-1

    After increasing thickness of components when I checked output for STS in pvelite, it is observed that still critical velocity for vortex shedding is less than the mean critical velocity. To investigate further for the cause of failure, I checked ovalling frequency. But I found that ovalling...
  18. israr1

    Stack design_STS-1

    Further to above: In Dennis Moss, Chapter 6: special designs, it says that Vortex shedding can be eliminated by introducing helical strakes upto top 1/3 portion of stack. As per above, does it mean that by introducing strakes there is no need to check for vortex shedding. If so than how to...
  19. israr1

    Stack design_STS-1

    Hello everyone, For stack, designed as per STS-1, i am in a situation that critical velocity is lower than design velocity. So far i know by introducing helical strakes or other attachments, critical velocity can be increased. But my question is how to evaluate critical velocity after...

Part and Inventory Search

Back
Top