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  • Users: g1a1
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  1. g1a1

    Trunnion Valve Bearings

    Can anyone assist me in locating a bearing supplier of PTFE mecahnically bonded to perforated stainless steel. We currently use EPI hyload-77 bearings, but these will become unavailable shortly. Need bearings with same or better performance in Valves.
  2. g1a1

    Creep Coefficients for Teflon (for FEA Analysis)

    I'm trying to perform a FEA analysis on Teflon as a valve seal. Can someone provide general creep coefficients for either Ansys or Cosmos?
  3. g1a1

    3D CAD Packages

    My Company has been using Autodesk for a number of years. A handful of us are using Mechanical Desktop 2005 and the rest use ACAD 2D 2005. Since MDT is fading away, we are undecided whether or/not to pursue training in Inventor or some other 3D Package (at a lower cost/seat). We have a large...
  4. g1a1

    PE Practice Problems by Michael Lindeburg

    I'm missing chapters 55, 56 and 57 in the PE Practice Problems by Michael Lindeburg. Is there a site to download these missing chapters?
  5. g1a1

    Ansys WorkBench Error Message

    I receive the following during solution, "An error occured while starting the Ansys solver module". Does anybody know how to resolve this issue? Thanks
  6. g1a1

    Element choice for Grafoil Material

    What ansys element would accurately model 70#/ft^3 grafoil seal material? Thanks
  7. g1a1

    Solenoid Valves

    Looking for a 3-way, S/S, Normally Closed, 12vdc-low power Pneumatic Solenoid Valves for -40F service. One at a Cv=0.7 min and the other at a Cv=3.00 min. It must exhaust a 2" and 8" (respectively) ball valve equipped with a actuator(port=0.7Cv and 3.00Cv) in 2.0 sec or less. I have tried some...
  8. g1a1

    Pneumatic Solenoid Valves

    Looking for a 3-way, S/S, Normally Closed, 12vdc-low power Pneumatic Solenoid Valves for -40F service. One at a Cv=0.7 min and the other at a Cv=3.00 min. It must exhaust a 2" and 8" (respectively) ball valve equipped with a actuator(port=0.7Cv and 3.00Cv) in 2.0 sec or less. I have tried some...
  9. g1a1

    Scratch Space ??

    I recieve an error message during a mesh operation indicating I need more scratch space. How do I increase this? Thanks, Gary
  10. g1a1

    Animating 3D Assemblies or Scenes

    Is it possible to Animate 3D Models. I would like to make a presentation for a concept design with Animation to communicate intent more clearly. Thanks in Advance for your Assistance!
  11. g1a1

    Cryogenic Valve Design

    I am developing a cryogenic Ball valve and have had limited success in achieving Zero leakage @ Temp. Does anybody know what the static sealing suface finish sould be? My current research has indicated 4-8 Ra. Thanks, g1a1

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