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Anonymous Poster

Nozzel Distortion or Bend in Pressure Vessel

12/18/2010 12:03 AM

During inspection of a pressure vessel, a nozzel (2") distortion (bend) noted and is due to welding only. please specify acceptance limitation in any plane.
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Tornado
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#1

Re: Nozzel distortion or bend in pressure vessel

12/18/2010 12:37 AM

If the drawing specifies any tolerances for angularity, you could follow those. I don't know how or why a bend could be due to welding only. Maybe the nozzle crashed into something after fabrication?

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karthik144
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Join Date: Dec 2010
Location: Thailand
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#2

Re: Nozzel Distortion or Bend in Pressure Vessel

12/20/2010 4:50 AM

+/- 0.5 degrees-deviation from horizonta,vertical or the intended position in any direction.(as per pressure vessel handbook-vessel fabrication tolerances)

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 Karthik
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Anonymous Poster
#3

Re: Nozzel Distortion or Bend in Pressure Vessel

12/21/2010 9:12 PM

The vessel manufacturer and its client (not always) should have a specification or standard drawing specifying fabrication tolerances for pressure vessels.
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