I'm taking a first look at division 3, and I came across the term "monobloc", but I can't seem to find an actual definition for it. I would assume they mean that the shell is machined from a single block of steel. Does anyone have experience with mono bloc, or could you point me in the right...
For Section VIII, Div. 1.
I've always seen two sets of weld metal specimens (cap and one at 1/4t), so I never thought to look this up. I'm having a very difficult time finding in the Code where it tells you how many weld metal specimens (not HAZ) are required for production impact testing. If...
Looking into getting my CWI, but I want to ask if my experience will count.
AWS website has the following requirements:
Minimum Education Minimum Work Experience
Associate or higher degree in Engineering...
I know the cheap ones work like that, but i saw some crazy expensive ones that do "laser machining". They must use very different lasers, or take a lot of passes. I have no experience with those at all.
I've seen nameplates engraved, very shallow, and it looks like it was done with a laser...
I'm considering engraving nameplates in the future, and im trying to do research on what equipment will get the job done (with decent/good quality, as cheaply as possible). A $10,000 engraving machine is way over budget.
I'm looking into laser engravers, but most wont engrave stainless. The...
I havent heard of blue garloc before, ill let him know.
I didnt think about austenitic, but thats a very good point. Almost all jobs here are carbon steel, but every once in awhile somebody wants different material.
I think the lack of responses about actual real-world experiences with the...
Fluid contents,flange sizing, rating, material, max operating pressure, and issues with leakage aren't really applicable to the discussion, but these were water, 2-6", 150-300#, SA-105, 900PSI, no leakage (off the top of my head, its been a few weeks).
Paper gaskets are compressed and treated...
RF flanges. He said he had a leak with paper gaskets, and would never use them again. I told him that taping the spiral wounds was much less safe than using paper correctly.
I think he's probably bottoming out the spiral wounds on the first use, which would take a lot of torque. I'm pretty...
I have a client who is covering the seeling surfaces of spiral wound gaskets, as well as the sealing surfaces of flange faces, with duct tape.
He recently switched from paper gaskets to spiral wound. Once he did, his customers started complaining, due to the flange faces having scratches, so...
Thank you all for your replies!
From what you're all saying, it sounds like there is no true governing standard for turbine repair work (weld repairs to casings, weld repairs to rotors/blades, replacing blades, etc.), only voluntary, company policy type standards.
I do find that strange...
I just applied for a new job with a company that performs various repairs to turbines. I'm from the Pressure Vessel/Boiler industry, and some things the interviewers said left me a little worried about their operation. They reacted very defensively any time adherence to standards/procedures came...
jte,
I've actually been doing research for a training on this today. I agree with everything you said, and I have another question for you:
In reference to Sect. VIII, Div. 1, and using ramsripaven's example of a pipe nozzle with the Code boundary ending in accordance with U-1(e)(1)(-a):
The...
I can't think of anything that is applicable for this paragraph. All the gages and instruments I've seen are threaded into couplings, so the Code boundary
would end at the threaded joint. Can anyone enlighten me about anything that would apply to this paragraph?
Any material welded to a Code pressure part needs to comply, even if it is just temporary. That material has the potential to mix into your Code material. I'm not familiar with that particular material, but keep in mind that materials can be certified to comply.
TGS4 and jte,
I looked it up, and the F factor is always 1.0 if repads are used, as jte said. So, a repad could never be an oval shape if the nozzle is circular, unless the manufacturer was using more material than required.
I just want to make sure that I'm understanding this...
In regards to a simple pipe nozzle in a cylindrical shell:
Reinforcement calculations are done based on a plane that cuts through the center of the nozzle, in line with the longitudinal axis of the cylinder. What about the plane which also runs through the centerline of the nozzle, but is...
