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  1. McDermott1711

    Why there are discontinuities in the threads of this bottle cap?

    I think this is the right answer. Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  2. McDermott1711

    Why there are discontinuities in the threads of this bottle cap?

    Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  3. McDermott1711

    Maximum Torque on a Jackscrew

    Thanks a lot for all the above answers. Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  4. McDermott1711

    Maximum Torque on a Jackscrew

    So, how they size these bolts (considering risk of fracture within threaded area)? Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  5. McDermott1711

    Maximum Torque on a Jackscrew

    I searched for it, but found nothing. Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  6. McDermott1711

    Maximum Torque on a Jackscrew

    I'm going to calculate (or analyze via FEM) maximum stress in a jackscrew which is used to make space for removing a valve sandwiched between two flages. I know tightening torque on that machine bolt is at first low but it will increase as far as isolating space is increased. So, how can I...
  7. McDermott1711

    Flange Dimension for bore size 2000 mmm

    rudiawan From your picture it seems that the DN 2000 mm pipe is transferring seawater from depth of -20m to the basin. Why operating pressure is selected as 20 bar? Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  8. McDermott1711

    Changing from GRE to CS for Large Pipes

    thread378-267056 I was reading this thread and with regard to OP question: I think, at that time maybe for pipes larger than 24" the available vendor of fiberglass pipe did not have an oven large enough to cure larger-than-24"-pipes. Therefore, the choice between not-cured GRVE and CS with...
  9. McDermott1711

    Using Telegram bot to write a code in Autolisp

    This is address of a Telegram bot that works based on the AI: https://t.me/OpenAiChat_bot I asked it to write a code in Autolisp computer language to list coordinates of selected points and below is its answer: (defun c:listcoords () (setq SS (ssget)) (setq pts ssleng(SS) ; set...
  10. McDermott1711

    Import AutoCAD Drawings to Inventor | Autodesk Virtual Academy

    Found this video useful for those who want to import DWG files (from AutoCAD) to Inventor. Import AutoCAD Drawings to Inventor Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  11. McDermott1711

    Vapor Recovery Line - On/Off Valve - Seat Selection

    There are several vapor recovery lines, which are used at gasoline loading bays. During the day, lots of tankers come and go and there is an on/off valve in vapor recovery lines that shall be normally closed unless a tanker is stopped for loading and at this time, its line shall be opened by...
  12. McDermott1711

    WHICH MATERIAL TO SELECT FOR HDPE PIPE IN CAESAR II

    It seems HDPE is not defined in CAESAR II library, perhaps it's because problem with governing codes (e.g. ASME B31.3, ...). Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  13. McDermott1711

    Selection of job limit/range from a complex large piping

    Hi there, In a complex petrochemical plant with a lot of piping, it's obvious that modeling all of the piping in a CAESAR II job is not a wise approach. But, is there any guideline/s for selection of lines that fall into a single job? Considering a pump station within a complex refinery, which...
  14. McDermott1711

    How things changed from 2004...

    I was wondering how many engineering software diminished during these years. http://www.eng-tips.com/threadforum.cfm?lev3=70]http://web.archive.org/web/20040822022940/http://www.eng-tips.com/threadforum.cfm?lev3=70[/url] Nothing is more fairly distributed than common sense: no one thinks he...
  15. McDermott1711

    Piping Hydrodynamic Test

    Why piping codes (such as ASME B31.3) deal only with "Hydrostatic Test"? Isn't it possible to have some requirements for dynamic aspect of piping test before its operation (e.g. piping connected to the pumps)? Nothing is more fairly distributed than common sense: no one thinks he needs more of...
  16. McDermott1711

    Engineering Failure Analysis Report - Guideline

    Hi everybody, Is there any guideline available for writing an Engineering Failure Analysis Report, by institutes such as API, ASME, ASTM or by an experienced person? Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  17. McDermott1711

    Tehran Oil Refinery - Fire moment

    Is the height enough? Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  18. McDermott1711

    Tehran Oil Refinery - Fire moment

    By looking at this picture, it seems that they didn't consider a dyke for the tanks and I recon the tanks was used primarily for water storage (and perhaps this is the reason we don't see a fire protection acting automatically for them). I've heard that (due to sanctions) Iran can no longer sell...
  19. McDermott1711

    Tehran Oil Refinery - Fire moment

    Tehran Oil Refinery - Fire moment Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has. Rene Descartes
  20. McDermott1711

    Pilots are killed when ejector seats activate before take-off

    Unconfirmed report says ejection seat was unoriginal and made by Iran's Air Force. https://www.dailymail.co.uk/news/article-9639925/Two-Iranian-fighter-jet-pilots-killed-ejector-seats-activate-off.html Nothing is more fairly distributed than common sense: no one thinks he needs more of it...
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