I was asked the other day "what are the inspection requirements for fin fan coolers"? I responded that they were ASME Sec. VIII pressure vessels and the requirements are the same. My question is, Are they considered pipeline components and not subject to the same requirements? Are they...
I am about to transport a pressure vessel that was used to separate hydrocarbons and natural gas. It has been out of service for years but the question of de-gassing has been raised. Am I required to De-Gas prior to shipment? Can I just blind flange the vessel and transport? the vessel will...
For years I have been doing Pressure Vessel Inspections and have gone by what was taught when i learned. I was taught to assure that all bolted joints had at least three exposed threads beyond the nut. Where does this come from. I have been looking but not found it yet. Is there a place in...
I am trying to wire up a modern alternator into a vintage Ford. I know where to connect the "Bat" terminal but I am not sure where to connect the Field and Stator Terminals. I know one goes to the Block for sensing but the other I am not sure and which goes where. There is little information...
I am inspecting a propane storage bullet which was built with "0" corr. allowance. Can I perform an "Alteration" to this vessel in order to recalc it using the latest stress values and give it some corrosion allowance? We just performed an internal visual inspection, magged the welds, and UT'd...
Gentlemen,
I have been tasked with the inspection of an Anhydrous Ammonia Storage Vessel. I remember that the biggest concern was SCC in the welds but am Unsure of the extent of the testing required. It has been a while. My questions is simple.
To what extent do I need to Shear Wave the...
Gents,
in the national board code it says that when welding on a coded vessel which is "OF ROUTINE NATURE" is performed, the R-1 requirements are waived. Does the repair of a seal welded tray on a contactor fit this? We have a chimney tray with a possible bad seal weld, do we need...
A conversation with a "CODE" shop the other day raised the question of U versus R stamps. The code shop insisted that a "U" stamp is acceptable for repairs instead of an "R" stamp. I disagree but others in my group do not. What is the concensus of the forum...
