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  • Users: Zapster
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  1. Zapster

    support shoes or saddles

    I have seen several different means to attach pipe supports to the pipe. Obviously any attachment method should be evaluated to ensure that the combined allowable yield stress is not exceeded. So for ASME code piping, B31.8, B31.4, B31.3, and B31.1 are there restrictions other than code stress...
  2. Zapster

    Colebrook friction factor

    What are the origins for different Colebrook friction factor equations shown in a few texts? This one I have used in the past is 1/f^(-0.5) = -2Log(?/(3.7Re)+2.51/(f^0.5*Re)) Not sure why John McKetta and Ron Darby use these coefficients: 1/f^(-0.5) = -4Log(?/(3.7Re)+1.26/(f^0.5*Re))
  3. Zapster

    AutoDesk

    Any thoughts on how support will be for ALGOR now that they have been acquired by AutoDesk? Do you think that AutoDesk will support the multi year service contracts that were made by ALGOR just before the sale? Will AutoDesk do this without adding additional conditions.
  4. Zapster

    Variable for UCS in different Views

    When drawing in different 3d views, how do I set AutoCAD to automatically establish X in the horizontal plane going to the right and Y in the vertical plane going up? Is there a variable to set such that I do not need to select “UCS View” every time I change the view in model space?
  5. Zapster

    V20 changes

    Can anyone tell me if they have heard of any real significant improvement between V19.3 and V20 which should be released in January? Or, does V20 just provide a marketing pitch for the sales staff at Algor?
  6. Zapster

    PWF & SEM ???

    I have an automated pipe library that list PVC fittings with connection types being PWF & SEM. The PWF fittings look and are dimensioned like a SW (socket weld) and the SEM connection type is like a plain spigot end. My guess would be PWF Pocket Weld Female ????? SEM Spigot End Male ...
  7. Zapster

    Air vents in a steam main

    I am a bit confused with a design/build specification requirement for sizing air vents in a 50 psi main steam distribution line. The project specifications call for air vents with a thermostatic element to be sized for normal operation conditions, and not for startup condition. Startup is to be...
  8. Zapster

    Commercial kitchen plumbing questions

    Hello, Does the installation of a commercial soda pop fountain require a backflow prevention valve for the supply water? Is there a code requirement for floor drains in walk in coolers?
  9. Zapster

    Buried Tees in Pipelines

    What are the issues of overstressing buried Tees due to longitudinal movement of buried pipelines? Delta T is about 100 degF, and pressure ranges between 0 and 2500 psi. Is the prospect of Tees being overstressed due pipeline movement worth the analysis to confirm that there isn’t a problem...
  10. Zapster

    image to dwg translation

    Is there a shareware program that will take a jpeg and/or pdf line drawing and turn it into a editable dwg drawing?
  11. Zapster

    hide viewport

    How do you hide the boarder of a view port for printing while keeping the content of the port?
  12. Zapster

    Multiple Branch Connections

    Hello, Is there any guidelines regarding multiple branch connections in B31.3? I need to weld 3 each, ½” thread-o-lets, 120 deg apart, on 3” run. Any comments would be helpful. Thanks
  13. Zapster

    Cutting the Cord

    Hello, I am a Licensed Electrical Engineer with 8 years experience in engineering and 15 years experience in related trades. I am planning to start my own engineering firm. Currently, I am employed with a billable rate of $100.00/hr. I have given my employer notice and told him that I was...

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