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  1. Traket

    Velocities in Relief Lines

    I'm working on a project with the fluid being API 42 crude. I'm having a bunch of trouble finding a clear answer on allowable velocities for inlet and outlet lines for the relief. For inlets, I've found the general rule for <3% pressure drop but I'm expecting fluid velocity to matter prior to...
  2. Traket

    Pipelay Tensioner

    BigInch, Do you have any experience on the cost of a stinger? I have a few companies getting back to me on a quote, but I have someone here looking for a very rough ballpark number by Monday morning. We would be looking at a stinger with about 100 ft in length. Either A frame or ballast would...
  3. Traket

    Pipelay Tensioner

    Another question regarding the stinger. I had read in at least one of the text books that there is a straight portion between the departure from the stinger and before is assumed it's catenary form. Is there a way to determine this portion or is it just ignored for calculation purposes? From...
  4. Traket

    Pipelay Tensioner

    If I am understanding you right, this would give the tension required too prevent buckling in the sagbend region. Is the stinger ignored for the sake of determining tension?
  5. Traket

    Pipelay Tensioner

    I am working on a project in which we are laying 10" grade B sch 80 pipe in depths of 10-200 ft of water (no concrete coating). Anyone have suggestions on the tension required or where to start on the calculations for this? Future requirements would be going up to 16" pipe.

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