Good day all
A Vendor of ours has built an ASME 8 Div.1 pressure vessel for a refrigeration package. The vessel will be used in ammonia service and is fabricated of SA516 Gr 70 material 12.7mm thick. Due to fabrication errors the vessel has been PWHT 3 x and now there are no cycles left. The fabricator then damaged the reinforcing weld of the nozzle to shell weld and it now needs to be repaired again. Any ideas on how we can do this repair with out PWHT?
Is ammonia in lethal service
A Vendor of ours has built an ASME 8 Div.1 pressure vessel for a refrigeration package. The vessel will be used in ammonia service and is fabricated of SA516 Gr 70 material 12.7mm thick. Due to fabrication errors the vessel has been PWHT 3 x and now there are no cycles left. The fabricator then damaged the reinforcing weld of the nozzle to shell weld and it now needs to be repaired again. Any ideas on how we can do this repair with out PWHT?
Is ammonia in lethal service