Nozzle Bent During Shipment
Nozzle Bent During Shipment
(OP)
During shipment from the fabricator’s shop, our pressure vessel shifted and bent 2 nozzles on the shell section. The vessel was shipped back to the contractor for repair of the nozzles. The contractor just hammered the nozzles back to position. Is this standard practice to just hammer on the nozzle until it is in place? If so why do you spend time making sure it is straight before welding, why not just weld and hammer into place. My question:
Is it a recognized code practice to hammer a nozzle back into place without performing any NDE or replacing the nozzle? I would think the best repair is to replace the nozzle.
Any comments would be greatly appreciated! Thank you!
Is it a recognized code practice to hammer a nozzle back into place without performing any NDE or replacing the nozzle? I would think the best repair is to replace the nozzle.
Any comments would be greatly appreciated! Thank you!





RE: Nozzle Bent During Shipment
We would perform some kind on nde on neck to shell weld.
you don't say how badly it was bent or if there was any deformation in neck or shell
Did you prepare and NCR to identify the problem or a proposed course of action to identify any possible damages to shell or neck?
RE: Nozzle Bent During Shipment
RE: Nozzle Bent During Shipment
RE: Nozzle Bent During Shipment
RE: Nozzle Bent During Shipment
this is where it gets sticky, legally that is.
depending on the po and arrangements, the ownership of vessel changed when it was loaded on the truck to be shipped to you.
if this is the case, it is your vessel to be fixed as you say and the trucking company and/or their insurance pays.
repaired with new nozzles, rehydro tested, and r-stamp applied.
if it is not the case then there maybe some conflict between fabricator and trucker over payments.
Nevertheless, an NCR should be filled out and the fabricators AI involved BEFORE the repair is started
RE: Nozzle Bent During Shipment
I've seen this happen numerous times and though the process of correcting said problem should be simple it usually degenerates into a pi**ing contest. Just make sure you have everyone on board at the get go.
RE: Nozzle Bent During Shipment
From your uploaded photo, I was able to make out 2 things
1) Transportation arrangements for the vessel are severely substandard. How come no wooden/ shipping saddles are present? The vessel is also resting on on of its lug support. NOT A GOOD SIGHT !
2) The bent nozzle appears to be a small one. We always stiffen nozzles <=2" NPS using two gussets spaced 90 degrees apart.
Overall,the shipping responsibilty should be placed with the equipment fabricator and specified expliictly in the contract/ MR.
-Jehan
RE: Nozzle Bent During Shipment