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Recent content by GD_P

  1. GD_P

    Design of end closure with split ring

    I will try to figure out. Thank you Mike, r6155 & saplanti for your comments & suggestions. GD_P
  2. GD_P

    Design of end closure with split ring

    Probably final post of the topic, to Mike, Sorry for the inconvenience, I will restate again. Regarding flange design loads, I agree with you. But i am concerned about compression bolt design i.e., in case of usual Apdx 2 flange, bolt load & flange load are same. Will it be applicable to...
  3. GD_P

    Design of end closure with split ring

    Thank you all for your comment and suggestions. Few doubts & comments as below: Is my consideration that flange needs to pressed / clamped for min load as per Apdx 2-5 calculations is correct? OR it is overly conservative? Is my consideration that COMPLETE flange clamping force calculated as...
  4. GD_P

    Design of end closure with split ring

    Mike, Once again thank you for the suggestions. The vessel will not be stamped. Vessel size will be DN 40 to DN 100 max. Regards, GD_P
  5. GD_P

    Design of end closure with split ring

    @Mike & saplanti I really appreciate for your time & detailed reply. Mike, From your reply, It seems like our perception of split ring is same, if not please refer link: https://files.engineering.com/getfile.aspx?folder=4cce7bd2-badb-40c1-8915-7542e78afd7e&file=Split_ring.JPG It is simply...
  6. GD_P

    Design of end closure with split ring

    I have been assigned with the task to design the closure (refer attachment) to comply with ASME Sec VIII Div 1. In this closure assembly, compression bolt engaged in split ring tapping along with split ring ensures the required sealing force. Design conditions are Material: SS316, temp: 300 deg...
  7. GD_P

    High pressure design considerations

    Thank you all for your cautionary posts which are based on your understanding or practical experience about the criticality of application or possible implications of uncertainty. But Honestly speaking, I really felt demoralized after reading the posts. I accept that I may not be competent to...
  8. GD_P

    High pressure design considerations

    I apologise for the inadequate information. Code of constructions - ASME Sec VIII Div 1 and ASME B31.3 (for the piping associated to vessel) Material - SS316 It is small vessel with size DN 40. It's a trial equipment which will handle multiple fluids depending on the customer, which may include...
  9. GD_P

    Jacketed vessel design and it's making requirements

    Hello, Again a few very basic questions regarding Jacketed vessel design and it's name plate marking. Vessel has an inner cylindrical shell containing shell side fluid (process fluid) which is heated by jacket side fluid (utility fluid), flowing in the space between shell & jacket. Consider...
  10. GD_P

    High pressure design considerations

    Thank you Jay & Mike for your replies. The service will be lethal or category-M fluid service. Actually few connections are 1/4" & 1/8" tubes in size, so threaded connections will be feasible here. Also I went through ASME B31.3 but it doesn't restrict use of threaded connections up to 1" size...
  11. GD_P

    High pressure design considerations

    Hello, Please help me to get rid of below problem & Sorry for the long post. We design vessels & piping for pressure max 10 bar & temp 350 deg C. But our next project demands for 100 bar design pressure. So I need your advice (based on industry practice) regarding flanged connection for piping...
  12. GD_P

    Hollow cylindrical parts as per UG-14

    Thank you r6155 for reminding. I will try to convince the AI with above way, else we will have to qulify it using proof testing. GD_P
  13. GD_P

    Hollow cylindrical parts as per UG-14

    Thank you r6155 for the clarification. Actually we want to use nozzle with internal thread (our own design & not standard B16.11) to connect to external hose. The nozzle will not be exact cylinder with constant thickness, but will have threads, taper section and few steps in dia. But it will be...
  14. GD_P

    Hollow cylindrical parts as per UG-14

    As per the definition SA-484, 3.1.1.4 forgings, n—parts, including bars, billets, semifinished products, or complex shapes, produced by hot mechanical working using hammers, presses, or forging machines. So the forged condition indicated on test certificate should indicate hot worked condition...
  15. GD_P

    Hollow cylindrical parts as per UG-14

    Hello forum, Can we use hollow cylindrical pressure part machined from rod / bar for ASME Sec VIII Div 1 application? As per UG-14, we can use machined rods within the limits mentioned therein. But i am in dilemma after referring below interpretation...
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