Hi,
I have been going through one of the Shell and Tube Exchange Data sheet and at the end one note was mentioned saying "Strength-weld tubes to tubesheet".
As i understand this note is to prevent the Leakage from Shell side to Tube or Tube to Shell Side. But how we decide that we need to specify Strength-weld tubes to tubesheet or we can simply tight fit the tube into tube sheet.
Exchanger TEMA type is CEU.
Exchanger is having a mix of Hydrocarbon & Hydrogen on both Tube and Shell Side.
As i understand we never want any material to leak from tube to shell or from shell to tube side in a tubular heat exchanger.