Radiography for Shell and Tube heat exchangers using ASME VIII 1

[Pacohades]

Dear all,

I would like to know how to distinguish when a heat exchanger is designed by using a spot, full or 100% radiography. Depending on which kind of test method used a different E joint coeficient is chosen.

Once I have had a look to standards I think that you can choose the method that you prefer, and that will change some parameters (thickness...)

Thanks so much,

 

[muld0020]

You need to choose RT based on service conditions, customer specifications, and the Code rules for the material and thicknesses that you are working to.

 

[SnTMan]

But, if the Code does not dictate due to the service, material or thickness, and / or customer does not dictate, then it is your choice. You trade off material thickness against radiography.

Regards,

Mike