thread1452-421887 hello colleagues. I work for Axion energy (former Exxon) here in Argentina. We currently building a 40.000 m3 crude tank. I have the contractor site manager and owners debating me about the NDE required on the Shell connections at the first course. These are 3 8" connections...
Hi colleagues, once again, I will require your advices on this fórum. On a new 15 000 m3 virgin napphta tank, the last plate (12mts x 2.5mts x 9.5mm) to be installed in one of the Shell courses,length was short by 15 mm. The contractor installed an adjustment plate of 900 mm long x 2.5 mts high...
Hello colleagues, I have a question about the Shell cut out for an API 650 tank. The contractor wants to use the reinforcement pad as a backing for one of the connections on the Shell. Shell is 33 mm thick, nozzle is 8" diameter. Engineering drawings call for a 10 mm gap between neck and Shell...
Hi there, I have a question about roundness measurements required in a 40.000 m3 storage tank. I have been assigned to follow QC on this job when the 6 courses and top reinforcement angle were already installed. Performing a walkdown on the jobsite, I have noticed lots of local deviations on all...
Colleagues greet you again and excuse my insistence. What happen is that I started working in another refinery, and the truth is that I do not like the way they are handling things here. My new doubt, arises because the purchasing department, bought a lot of gate valves from two different...
Hi colleagues. I was wondering what HF letters on the identification plate of a gate valve means. Is it stellite gr6, Co CrA? The Stem is 13 % cr, but seat and wedge only have this HF identification letters. Any advice will be...
Hello again colleagues. It is acceptable to sweep the thread of a NPT valve to be able to use it as a SW. I have rejected it, some suggestion about it, regardless the line service that I do not remember, but I am sure they are for drainage,
Attached photos,
Best regards...
Hello colleagues. I recently started working at an oil company. When I received KSB valves, which came directly from the factory in China, I found that the rings of the valves of 4 "and smaller in diameter, regardless of the #, have the welding of the seat rings to the body, undercut greater...
