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  1. flexy

    Appendix 2 Flange Analysis for Unrestrained Piping Expansion Joints in Anchored Systems

    Hello, Just wondering if anyone has come across the adaptation of the ASME Section VIII, Div.1 Appendix 2 flange analysis for an unrestrained expansion joint in an anchored piping system. In this situation, the loads on the flange are different because much of the thrust that is pulling the...
  2. flexy

    ASME Section III Sight Glass

    All, I know that ASME Section III isn't touched on very much here but on the off chance that someone has been involved, I have a question regarding it. My company has to provide an ASME Section III, Class 3 (Subsection ND) sight glass for one of its nuclear clients. I've reviewed the...
  3. flexy

    Large Rect. Opening in a Cylindrical Shell

    I am working on a large expansion joint design. This expansion joint has a very large rectangular nozzle (88" x 53") that goes radially into a round shell (78" OD). The long side of the rectangular opening runs parallel to centerline of the 78" shell. I know that I can use Appendix 1-7 for...
  4. flexy

    Damper Actuators

    Just wondering if anyone knows where I could find a design standard for sizing damper actuators. Any help would be greatly appreciated.
  5. flexy

    Damper Design

    Just wondering if anyone out there knows if there is a handbook or standard for mechanical design of air flow dampers. Louver dsmpers, Guillotine Dampers, Butterfly dampers, etc. Any information that someone on this forum could provide would be greatly appreciated.
  6. flexy

    Impact testing of expansion joint root rings (Appendix 26 EJ)

    I am presently designing a high pressure expansion joint per Appendix 26 of the 2004 Edition of the ASME Section VIII, Div.1 Pressure Vessel code. I would like to use 1" diameter A36 bar for the root rings with 1/2" x 1" high thick SA 516 70 gussets welded to the root ring to provide the...
  7. flexy

    High Temperature Allowable Stresses for Bellows

    I am attempting to design a 16" bellows expansion joint for a 2000F application @ 80 psig. At this temperature, it is enormously difficult to select an appropriate bellows material. Even if I am able to do this, at 2000F any material I select would be in the creep range. Should I decide that...
  8. flexy

    High Temperature Allowable Stresses for Bellows

    I am attempting to design a 16" bellows expansion joint for a 2000F application @ 80 psig. At this temperature, it is enormously difficult to select an appropriate bellows material. Even if I am able to do this, at 2000F any material I select would be in the creep range. Should I decide that...
  9. flexy

    Structural Support Ring Design

    Anybody know where I can find a method for analyzing structural support rings for pressure vessels. I have investigated the method proposed by Bednar and Moss. The Moss method is less conservative than Bednar's approach as it takes into account some of the shell's inertial contribution...

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