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  1. CW3

    Substandard Line Pipe

    20" pipe purchased back in the 50's. P.O. states "substandard", and a related document mentions "Condition I, Condition II, and Spiral Weld" pipe. Now I understand spiral weld, but what is Condition I and Condition II.....???? Thanks
  2. CW3

    Band/Drum Heater

    I have a 15.5-gallon SS304 drum that has an O.D. of 16.125". I want to fill it with 10-gallons of 70F water and heat it to 200F using a 120V _____watt band/drum heater. Like to accomplish this in 1-hour. Drum is atmospheric pressure. Can somebody fill in the blank ________watt...
  3. CW3

    Liquid Drop-out in Natural Gas

    What's an average-ballpark figure for the amount of natural gas liquids that could be produced from a gas composed of approximately 91% methane????
  4. CW3

    Estimating Winter Soil Temperature

    Let's say you have a 24" pipeline in Utah. The frost line is 24" deep. Top of pipe is 36" deep. I want to estimate a worst case scenario soil temperature. Any thoughts or comments ?????? Websites that publish average soil temperatures...???? Thanks
  5. CW3

    Valve Port Terminology Clarification

    I have a customer that has a piping specification that refers to ball valves as "regular port" and "full port". Now, I'm very clear, when referring to "full port", as to what I'm referring to. On the other hand, when someone refers to a ball valve as "regular port", what specifically are we...
  6. CW3

    Excel & Project Scheduling

    Just a quickie....has anyone used or developed a down & dirty Excel project scheduling spreadsheet? One that would generate a Gannt chart? Certainly not with all the features of MS Project or Primavera, but something useful? Thanks, CW
  7. CW3

    Lifting Trunnion Common Practices

    I am looking for some direction in finding documentation regarding lifting trunnion design for pressure vessels. In particular, I'm trying to educate myself on the common practices involving lifting trunnions. My company generally utilizes lifting "lugs" when practical, however, we have a...
  8. CW3

    COMPRESS and Fittings

    Has anybody ever needed to have a Tee fitting as part of an ASME code vessel......say, a 16" dia. vertical vessel about 8' tall with a 16" Tee (branch out the horizontal axis)....??? If anyone is a COMPRESS guru, I can provide details........... Thanks, CW3
  9. CW3

    Nomenclature Help

    I'm wanting to double check on an item or two pertaining to nozzle external forces & moments in cylindrical vessels......the term Rm = mean radius of shell (inches). Am I to take this as the O.D. on a straight cylidrical vessel?? I'd also like to include in a spreadsheet, calculated values...
  10. CW3

    Looking For Mollier Diagram

    Does anybody have a link to a "printable" Enthalpy-Entropy (h-s) diagram for steam........1967 Mollier Diagram.....??? Thanks, CW3
  11. CW3

    High-Temp Pipe Economics

    Does anybody have experience in A335 P2 vs. A335 P11 pipe as far as cost and availability? In a low-pressure (<200 psig) high-temp (1000F max) application, we have always used the P11 material (F11 flanges, forgings, etc). Is there any cost savings or availability issues with P2 material...
  12. CW3

    Economic Control Set-Up

    Hi, Looking for advice/suggestions/comments: In a nutshell, need to control temperature of a temporary steam line by injecting condensate via a 2" line. Steam flow is constant pressure/temperature/flow rate. 20" line, very low pressure (~50 psig). Need to be able to set up and control in...
  13. CW3

    Maxim 1-Wire

    Has anybody had any experience, good or bad, with Maxim (Dallas Semicond.) based temperature/pressure measurement devices? I'm interested in the "1-wire" networking abilities of the DS2760 temperature measurement capabilities and was wanting to find out about the same "daisey-chaining" to...
  14. CW3

    Basic Valve Control

    This is for the I/E gurus. Let's say I have a manifold that has six 2" nozzles. This manifold supplies water to various nozzles in a large pipe to cool steam. I have a temperature sensing device (RTD or thermal couple wire) at each location on the steam pipe so I can measure the skin...
  15. CW3

    Flow Through Wire Screen

    I'm trying to find information about the relationship between Flow Rate, Area, Velocity, Mesh SIze, Viscosity. I'm trying to determine what diameter shell I would need (as in a filter vessel) if I desired a certain flow rate of water through a certain mesh size screen, at a certain...
  16. CW3

    HRSG/Condensate Filtration/Polishing Advice

    Here's the situation (theoretical at this point): I need to build a filtering/polishing system that can take hot condensate at approximately 180-200F and remove as much of the suspended solids as I can. It should be able to handle flow rates up to 1000 gpm. The conductivity of this condensate...
  17. CW3

    Marking Up P&ID's

    I have the need to be able to write/draw on P&ID's from our customers. I usually get these in .pdf format sized 11x17. I'd like to be able to highlight lines, write text (that I can adjust color, font size, etc.), and draw straight lines. I'd also like to be able to erase existing lines...
  18. CW3

    304L vs. 316L Economics

    I'm putting together a pump skid that will be used to circulate chemical cleaning solutions for boiler/HRSG chemical cleaning operations. Some of the chemistry is acidic (Citric, EDTA..) some is alkaline (Ammonia, Soda Ash...). Pumping pressures never exceed 150-160 psig and temps never exceed...
  19. CW3

    For Chemistry Guru's

    I need some confirmation or correction on an issue. I have a container of 2.75% (w/v) Calcium Chloride. Can I say that this is a 0.25M solution? Given the molecular weight of CaCl2 is 110.98g, is this a correct statement? Thanks, CW3
  20. CW3

    Why so few MET PE's ???

    I will be taking the metallurgical PE exam ob Oct. 29 in Houston. I noticed that only 3 other candidates are signed up for the metallurgical exam. I also noticed that there are very very few MET exam takers nationwide. I was going to take the mechanical PE exam with the fluids depth section...

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