Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by StephenA

  1. StephenA

    Trenching

    Higher voltage cables are sometimes oil filled after installation which may require continuous support. Stephen Argles Land & Marine www.landandmarine.com
  2. StephenA

    Formula for rod bend length

    The length of a 90 degree bend is 90 divided by 360 times Pi times D (= 1/4xPixD) where D is the mean diameter of the bend in the rod. Similarly you can use any number of degrees as a ratio of the total circumference (360 degrees) Stephen Argles Land & Marine www.landandmarine.com
  3. StephenA

    Pipe extention

    It all depends on what you are trying to do regarding loading, corrosion resistance etc. but the easiest way is to use an internal sleeve pipe with outside diameter slightly smaller that the ID of each pipe. Stephen Argles Land & Marine www.landandmarine.com
  4. StephenA

    HDPE inserted pipe

    The HDPE lining is hard up against the steel pipe so you are very likely to damage or go straight through the lining if you do a hot tap. If the pipe is a pressure pipe the lining is returned at the flange joints or at least there is a special flange. I would check those first. Stephen Argles...
  5. StephenA

    chart point labels ?

    Rather long winded but if you add each point as a separate series you could call the series the loadcase. Of course you could not join the dots thereafter. Otherwise in Excel 2007 you can only have x, y and / or series that I can see. Stephen Argles Land & Marine www.landandmarine.com
  6. StephenA

    Total Station question about measuring from an arbitrary point

    You would have to use both an arbitrary point and alignment. A total station is not linked to GPS for example so you would be able to measure distances and angles and obtain quantities. If you wanted to repeat the measurements you would need to secure the arbitarry point and the alignment...
  7. StephenA

    expansion joints

    Temperature and type of fluid would be other vital factors Stephen Argles Land & Marine www.landandmarine.com
  8. StephenA

    Steel Reinforced PE Piping Haunan

    From the photographs it looks like Weholite pipe. In which case the spiral winding is to resist backfill and imposed loading whilst using the material efficienly and not for water pressure. Stephen Argles Land & Marine www.landandmarine.com
  9. StephenA

    Hydrotest Pressure difference in Higher points

    According to my understanding, the question siva3180 is asking is "why is the pressure higher at the higher elevation?" I cannot explain it and he also thinks that it is the wrong way around (as do all the other responses). Stephen Argles Land & Marine www.landandmarine.com
  10. StephenA

    Inspecting pipeline profile at sea bed level

    You could use an echo sounder Stephen Argles Land & Marine www.landandmarine.com
  11. StephenA

    suspended waste line over creek

    If you have to use a plastic pipe I would use High Density Polyethylene (HDPE or HPPE) and not PVC. Stephen Argles Land & Marine www.landandmarine.com
  12. StephenA

    Steel Pipe Restraint - Is It Necessary for This Application

    If the pipe is straight then there is nowhere for it to go. The danger would be if a section is removed and a blank fitted without restraining. The 6' head could then push the pipe out of a coupling. Stephen Argles Land & Marine www.landandmarine.com
  13. StephenA

    Installing conduit for fiber optic cable with water/ww const. project

    This company makes conduits suitable for blowing the Fibre Optic cables (FOC) through with air. We have been told that distances of 5000m are possible. The FOC is just the strand and does not need the armouring etc...
  14. StephenA

    Upheaval Buckling of Buried Pipeline

    With pure dry sand small grain (i.e. wind blown) I am wondering if vibration had a hand in the UHB with the particles moving down past the pipe as it rises. Stephen Argles Land & Marine www.landandmarine.com
  15. StephenA

    two significant numbers in colums

    To truncate the number to say 2 decimal places use =TRUNC(Cell, 2). Add a column, use TRUNC to create the truncated number and then Copy and Paste Special to get the truncated number into the original column. Delete the added column. Stephen Argles Land & Marine www.landandmarine.com

Part and Inventory Search