[MW:23889] Re: Allowable Tube Wall Reduction Tube-to-Tubesheet Joints expended in 2 grooves and seal welded

Dear Pushpraj

Formula for tube expansion, D=d+e+t

D- Tube ID after expansion.

d- Tube ID before expansion.

e- Clearance between tube OD and Plate ID

t- Applied Diameter expansion is 0.6 mm. (0..6mm Use can change depending on your groove depth.)

In your case you have seal welding also. So Don't worry for leakage.

With Regards,

Madhan. S

On Monday, November 16, 2015 at 7:54:08 AM UTC+3, Anand wrote:

Dear experts

 Please let me know the Allowable Tube Wall Reduction Tube-to-Tubesheet Joints expended in 2 grooves and seal welded 

Tube is SA179 ,20 mm OD & 2 mm thick

Tube sheet SA299 Gr B , 20.20 +_ 0.05 mm hole dia with 2 grooves inside the hole 

Please also share the applicable clause of TEMA or ASME stand.

Regards

Pushpraj Anand

  

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