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  • Users: Lebpower
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  1. Lebpower

    High Temperature in Cyclones of FCCU Regenerator

    Hello, I'm Assessing a failure in the cyclones of the FCCU Regenerator. It is most likely to be related to high tempeture in the cyclones according to the data gotten from the tempeture intruments and according to the findings (sigma phase was found in the rupture zone). I found the design...
  2. Lebpower

    ASME VIII-2 Appendix 4 & 5

    Hello, Where can I find the Appendix 4 & 5 of ASME Sec. VIII div. 2? I have 2007 and 2015 versions and I can´t find those appendix
  3. Lebpower

    ASME Sec. I and Sec. VIII

    Hello fellows, Can anyone explain me the differences between ASME Sec. VIII div. 1 and ASME Sec. I?
  4. Lebpower

    Setpressure and Blowdown in Pressure Relief Valves

    Hello my friends, I'm new designing relief valves, I want to calculate the set presure of a RV, I have read that it has to be lower than the MAWP but ASME Sec. VIII div. 1, allows an overpressure of 10% (in vessels with only 1 RV, 1.-) In which scenario would I want to set the valve with an...
  5. Lebpower

    Help with PD and MAWP (ASME Sec. VIII div. 1)

    Hello, I'm very confused about these 2 and I really need your help. Pressure Design: If I got the Presure and Tempeture (Operation) how can I calculate the Pressure Design? and Where I can Find this equation in ASME Sec. VIII. MAWP: In UG-27 (ASME Sec. VIII div. 1) they give this ecuation...
  6. Lebpower

    Minimum gasket width

    Hello Good morning, I'm having an issue evaluating an alternative for a heat exchanger gasket. They offer me to use a gasket with less width (1/2") than the stablished in the original design (5/8") I have searched on ASME Sec. VIII. div. 1 and there's Table 2-4 but I think it refers to the...
  7. Lebpower

    Design of Nonwelding Leak sealing Devices

    Anyone with experience in the design of Leak sealing Devices, specifically Bolted clamps. Bolted clamps 1.-) I want to know the standard that provies me the formulas to calculate the thickness of the body of this device, the bolt sizes and the minimum thickness of the bolted zone - There are...
  8. Lebpower

    MINIMUM/MAXIMUM HYDROSTATIC LEAK TEST

    CASE 1: I NEED TO CALCULATE THE VALUE OF THE MINIMUM AND MAXIMUM TEST PRESSURE FOR A HYDROSTATIC LEAK TEST FOR A NEW PIPE SYSTEM. THE SERVICE IS GAS NATURAL. SHOULD I USE ASME B-31.3 OR ASME B-31.8? ASME B-31.3 PARA. 345.4.2 MENTION THAT THE MINIMUM VALUE SHALL BE NOT LESS THAN 1 1/2TIMES THE...
  9. Lebpower

    NOZZLE ANALYSYS USING CAESAR II

    Since WRC 297 is intended only for cylindrical nozzles attached to cylindrical shells. How can I evaluate Fin Fan cooler Nozzles' on CAESAR II?
  10. Lebpower

    TUFFLINE PLUG VALVES FOR HF SERVICE

    Good Morning, I'm currently specifying some plug valves for HF service. I noticed that the model is Tuffline and after doing some researches I'm still not clear about what the tuffline is/means/do. Do anyone have experience with this model of plug valves?/Can anyone give me some explanations...
  11. Lebpower

    ASTM A-106 FOR PROPANE-PROPYLENE SERVICE

    Good day, I'm designing a new pipeline system using DEP SHELL piping class for Propane+Propylene service, they recommend to use ASTM A-333. Is there any bad experience using ASTM A-106 Gr. B in this type of service? I'm assuming that ASTM A-333 is recommended due to the cryogenic tempeture of...

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