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    Discussion in 'The main mechanical design forum' started by basi42002, Feb 9, 2010.

    1. basi42002

      basi42002 New Member

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      pressure vessel

      I have a large steel pressure vessel at 100 PSIG with gases inside. Gas temeprature might be 600 degrees F.

      I need to pass a long rotating ceramic rod, perhaps 1/2 inch diameter, through the side wall of the vessel. I am looking for a rotating bearing that can hold the rod at the vessel wall, allow it to rotate, but be gas-tight. Rotation rate will be around 10 RPM.

      Any suggestions?

      Thanks for the help.

      Bassey Etu
       
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    3. basi42002

      basi42002 New Member

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      The following file is an actual and complete design calculations for a pressure vessel designed and constructed in accordance with ASME BPVC, Section VIII, Division 1, and the vessel stamped ASME U-stamp.
      The file is in PDF format (Pages 127 & 1.041 MB)
      Link: http://www.4shared.com/file/18417349...n_Calcula.html
      thanks
      Bassey Etu
       
    4. mvalenti

      mvalenti Well-Known Member

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      my earlier post didnt seem to work... I have some experience with pressure vessels but in the 10ksi and up range.... I think your biggest problem may be the ceramic material itself making a seal.. Can you have a glass to metal seal done on the rod and then seal on that? Look for a rotary feed thru. Without knowing what the design criteria is this is all I can come up with.
       
    5. GarethW

      GarethW Chief Clicker Staff Member

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      Oops that might've been my fault :oops: I had to manually move these posts to the correct part of the foum and yours might have got sucked into a black hole!
       
    6. mvalenti

      mvalenti Well-Known Member

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      I think its on my end. Mcafee something or other... No worries...
       
    7. garnettools

      garnettools Member

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      Do let us know the length of the cylinder.
      Or better if you can explain the same with the help of diagram and tolerances.
       

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