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- Users: ColonelSanders83
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B31.8 Compressor Station Replacement of existing lines and required analysis
Nowhere do I see a hard requirement being put forth. In the conversation with the project team I see a lot of personal opinion, and people hiding from making a decision. If there are regulations dictating requirements for safe operation and that a flexibility analysis is required, by all means... -
B31.8 Compressor Station Replacement of existing lines and required analysis
See, that's the bit I'm getting hung up on. Its been operating for 40+ years..... The code specifically says I can replace existing designs with successful service history. Why the additional requirement? A question properly stated is a problem half solved. Always remember, free advice is... -
B31.8 Compressor Station Replacement of existing lines and required analysis
Biginch, your response leads me to the following two questions. 1) B31.8 833.7 invokes no requirement that a previous analysis was performed. Merely "duplicates a system with a sucessfull service record". Where does the requirement for an analysis come from? 2) B31.8 does not use the word... -
B31.8 Compressor Station Replacement of existing lines and required analysis
Hello All, If I replace the piping in aa B31.8 compressor station with an exact duplicate of what is currently installed, do I need to perform an new pipe stress analysis? The reciprocating compressors at this station have been in operation for more than 40 years and the decision has been made...- ColonelSanders83
- Thread
- Replies: 7
- Forum: Pipelines, Piping and Fluid Mechanics engineering
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Report a Client for Fraud?
Get with your company Lawer Immediatly. Have all you transmittals ready as well as a copy of the altered documents, and if possible an email from the superintendant on the matter. Both you and your place of work are sitting on a huge liability. After this is in the lawers capable hands (this...- ColonelSanders83
- Post #6
- Forum: Professional Ethics in engineering
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ASME 8 Div. 2 Fatigue analysis
When perfoming fatuige analysis in accordance with ASME Section VIII Div 2 we always use FEA. Depending on your vessel and geometry this can become quite the daunting task, especicially if you run into problems. A question properly stated is a problem half solved. Always remember, free advice...- ColonelSanders83
- Post #4
- Forum: Boiler and Pressure Vessel engineering
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AutoPipe Stress Analysis, When to apply ASME B31.3 Appendix P?
Read Appendix P carfully. Appendix P is for use when performing a computer analysis. As AutoPIPE is a computer analysis it falls under the requirements of appendix P. If you compare the equations modified in appendix P you will see where the differances are and how they impact what you are...- ColonelSanders83
- Post #2
- Forum: COADE, Inc.: CAESAR II
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Elbolets
I would suggest calling the supplier that made this statment. This way you have accurate information straight from the horses mouth. Just my two cents worth. A question properly stated is a problem half solved. Always remember, free advice is worth exactly what you pay for it... -
Clad defects & radiography
Just out of Curiosity, what is thier basis of rejection? Did they have any contractual requirements on the matter? It seems to me that would be an expensive fix that you are very likely to have reoccurances on. I would fight this issue to the death if it happened to me. Just my two cents... -
Clad defects & radiography
Any Word? A question properly stated is a problem half solved. Always remember, free advice is worth exactly what you pay for it! http://www.ap-dynamics.ab.ca/ -
Required Thread Engagement for Bolt Tensile Strength
Use the calculation for thread engagement from ASME D1.1. A question properly stated is a problem half solved. Always remember, free advice is worth exactly what you pay for it! http://www.ap-dynamics.ab.ca/- ColonelSanders83
- Post #7
- Forum: Welding, Bonding & Fastener engineering
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Change in penstock thickness
Follow racookpe1978's advice, this will answer your question and with any luck your understanding of the issue will increase. A question properly stated is a problem half solved. Always remember, free advice is worth exactly what you pay for it! http://www.ap-dynamics.ab.ca/ -
Clad defects & radiography
Ok, this clarifies matters a bit (I have attached a sketch of what you appear to have) Here is how I would procede. Hello Mr. Owner, the butt welds have all passed radiograpgy, Here are the prints. Please approve. If Mr. Owner rejects the welds based on the indications shown within the cladd... -
Clad defects & radiography
For starters, the code with the aceptance criteria you are working to is needed. Are you talking BPVC? API? Maybe a foriegn to the US application? I'm sorry to say, but I suspect you are in grey area here. The safest thing to do would have been to do your flange to pipe weld first, then done... -
Would you go back?
Thats a right sticky wicket. A job is a job, and I have personally never been too proud to take an offer when nothing else was available. That being said, I spent every non-work hour finding something better. Took a while but in the meantime I kept my head above the water. It's always tough...- ColonelSanders83
- Post #12
- Forum: How to Improve Myself
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Induction bend in muskeg area
I would be very interested to know what document said this and the basis for which this direction has been given. A question properly stated is a problem half solved. Always remember, free advice is worth exactly what you pay for it! http://www.ap-dynamics.ab.ca/ -
Welder qualification for 8ft penstock
1) 3G and 4G are not enough, to qualify for the "All" position criteria for pipe over 24" your welders need to be 2G, 3G, and 4G qualified. 2) The dual listing requirement are such that multiple qualifications are not neccessary. The intent is to qualitfy on what you plan to be welding. In my...- ColonelSanders83
- Post #12
- Forum: Pipelines, Piping and Fluid Mechanics engineering
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Welder qualification for 8ft penstock
From the look of it it appears you need both procedure and welder qualifications for these welds. This is not the end of the world. First look at your welding process and determing the thickness range you qualify for. Once you have that piece of information select out a piece of pipe with wall... -
Welder qualification for 8ft penstock
What is your code of construction? My experience has been in AWS D1.1 and ASME section IX codes. If either of these codes apply, on this matter I would side with your inspector. Although I can see your argument and why you are making it, A 3G and 4G weld qualification is not representative of... -
WRC 107 has been replaced by WRC 537
Thanks for the notice! I will be updating my library today. A question properly stated is a problem half solved. Always remember, free advice is worth exactly what you pay for it! http://www.ap-dynamics.ab.ca/- ColonelSanders83
- Post #2
- Forum: Boiler and Pressure Vessel engineering
