Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

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

Search results for query: *

  1. LittleInch

    Can Service Pressure Exceed Design Pressure?

    It freaked me when I saw operating pressure > design pressure, but that's how PV design seems to work. State a design pressure, Do the design work to ASME VIII From the design output with various minimum thicknesses back calculate the MAWP which can significantly higher than design...
  2. LittleInch

    Wood Bridge Inspection

    My experience of such people is that one of the reasons they are "rich" is that they expect " other people" to pay for everything.... It's not chappaquiddick is it??
  3. LittleInch

    How to model 105 degree elbow?

    I thought 105 degrees was the external angle, I e. Partly back on itself. Can't say I've ever seen this in reality....
  4. LittleInch

    Acid scrubber 'spitting' issue

    A drawing plus some process details might help plus what is the key difference between these new units and the older units?
  5. LittleInch

    Air India 787 crashes on take off

    Well if that report is correct then it's starting to look like a deliberate act. The anti yaw action may have masked shut down of one engine followed by the second. But why would anyone do this at take off???
  6. LittleInch

    Tie-In Issue: 10”x10S SS316L to 24”x10S SS316L – Weld Clearance & Flange Type

    So what is the current arrangement? Why not use a weldolet, or split tee? Option B looks horri⁴ble in terms of stress concentration. And generally anything that just looks terrible usually is for strict engineering reasons. Why does project specification require flanges?
  7. LittleInch

    Deflection of plastic pipe

    Add more supports. Pipe like this doesn't like point supports and long term has a tendency to creep and sag. Also next time don't assume we all know Gernan codes and standards...
  8. LittleInch

    Multiphase Flow Meter for emulsified crude oil Production

    You're possibly in the wrong forum for that. There is a Petroleum.set of forums allied more to field issues than plant issues
  9. LittleInch

    Welder Qualification

    There's a dedicated welding forum which may already have the answer or is probably a better place to ask the question.
  10. LittleInch

    Multiphase Flow Meter for emulsified crude oil Production

    Application - you can estimate the quantities of oil gas and water in a single pipe. Accuracy - varies widely depending on the metering technique used, the ratio of oil / water / gas and the vendor claims. You often find that a certain meter or vendor is good for one ratio of components, but...
  11. LittleInch

    Tank Vents - Plastic Bags - Pressure events ? (even possible)

    I agree with the others - "API tank" is very vague. Even then the vacuum collapse pressure is often very low, inches of water column. So yes, outflow rate or condnesation of contents has a big impact on the pressure if it is only a bit blocked, but collapse happens more often thatn you might...
  12. LittleInch

    spill collection underground tank design

    English is ok, but a drawing helps immensely to understand your issue as it doesn't make sense to me I'm afraid. Details such as size, depth, location etc
  13. LittleInch

    LPG Deepwell Pump Steady Bearing Failure

    Ad adding a few more details....
  14. LittleInch

    Free Vent for API 650 Tank - Bug Screen / Bird Screen Requirement

    The problem with any screen is that it can get easily clogged with bugs, spiders, rust, debris like leaves or plastic bags etc. Hence you are well advised to also include a specific vacuum relief valve and vent valve to prevent tank collapse, especially when the fire pump kicks into life. API...
  15. LittleInch

    Air India 787 crashes on take off

    At flight idle the engines still generate electricity - that's how it works when you're queued up waiting for take off. There's a lot of possible reasons why they either stopped being connected to the electrical bus and responded to an incorrect signal going to idle, but we're talking major...
  16. LittleInch

    Wood Bridge Inspection

    Got any pictures? Wood rot below the water line on even more so in the tidal zone is probably the key issue plus delamination of the arch and rot or damage to the vehicle deck. How old roughly? what weight limit is on it now? But wooden bridges don't last for ever so it's probably what is...
  17. LittleInch

    How to model 105 degree elbow?

    Just join on a 15 degree elbow to 90 degree elbow with zero extra tangent length?
  18. LittleInch

    Dry Co2 95% sizing Orifice meter

    https://daniel.com/wp-content/uploads/2022/04/DAN-SOF-TG-0122.pdf
  19. LittleInch

    Closed Loop Piping-Vacuum Issue

    There might be low pressure, but unless your oil is close to its vapour pressure or the height of the line to the top of the HX is more than 8 or 10m, this should not result in any actual "vacuum" only a lower pressure due to the static head. I have to say this does not look like a classic...
  20. LittleInch

    Jacking Oil Pump Air Lock Bleed Valve

    An inlet line like this should either be flat or slope upwards back to the tank. Having a high spot is normally not considered good practice. The issue of entrained air or vortexing at low level in the tank needs to be investigated first

Part and Inventory Search

Back
Top