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Thanks marty007 What is your opinon to perform RT on these joints, will you put all tubes after RT of Tubesheet to Shell weld ? is it Practical and normal to pass tubes after welding Tubesheet to shell from both ends ?

Dear sharmass Thanks for your valuable input. It really helps. So does it means all Tubesheet hub type connections with Shell in Lethal will be UT performed due to Tube Hindrance ? UW-2(a)(2&3) provides some waiver on inside Tube Butt joints and consider this is not possible to perform RT, then...

Hi r6155 Sorry for late info, can you suggest any code exemption or provision of code cases or nay practical way of performing RT. Appreciated your time.

Dear marty007 Thanks for your response, can you guide for code exemption if the exchanger is in Lethal service ? thanks in advance

Thanks All Is this normal to weld all these tubesheets to shell on both side and then insert tubes one by one ? there is no clear view how tube is travelling inside tubesheet until tit comes out from other side tubesheet

Dear Experts We ordered one Double tubesheet exchanger to vendor. Both Tubesheets are welded to shell with Butt weld as per FIG UW-13.3. Now as per vendor he cannot perform Radiography on this weld due to Tube hindrance and cannot perform UT due to 10 mm joint thickness. he is suggesting PT...