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!

Search results for query: *

  • Users: Cristian N
  • Content: Threads
  • Order by date
  1. Cristian N

    API 650 Nozzle Elevation Requirents

    With regard to the required nozzle dimensions shown on Table 5.6A/B, would it be fair to say that the table doesn't actually provide a Minimum Distance from Bottom of Tank to Center o Nozzle value for small-bore nozzles? i.e.; less than 2" NPS. From my understanding columns 8 and 9 provide...
  2. Cristian N

    Riveted Shell Leaks

    Guys, does anyone have experience with riveted shell leaks for an in-service tank? Typically what is the best course of action? Tank Details: Material : A283-C Year Built: 1929 Courses: 5 Bottom three courses have 3 rivets while top two courses have 2 rivets Height : 29.6'...
  3. Cristian N

    Cosine Curve

    Long story short, I am working with a client that has little to no resources when it comes to inspection of their storage tanks. I have been tasked with performing a complete external visual inspection in addition to an external settlement survey. I am in the process of creating a cosine curve...
  4. Cristian N

    External Settlement Surveys

    I was wondering if anyone had experience performing external settlement surveys on in-service storage tanks. I see a lot of 3rd party inspection companies tend to incorporate settlement surveys in their external visual inspection reports. I know API 653 has minimum required points in accordance...
  5. Cristian N

    What type of roof is this?

    Could anyone clarify what type of roof this is? Yes, it is an external floating roof. It has pontoon compartments on the outer rim and the center compartment that protrudes upward. https://files.engineering.com/getfile.aspx?folder=2b291db8-40f6-4d25-a4c8-a75122e547ad&file=external_floating_roof.jpg
  6. Cristian N

    Thickened Shell Insert / Repad

    I was wondering if anyone could help me with this one. I have a client who wants to vefify that their tank was built in accorance with API 650 Repad dimensions. ALl the manholes and nozzles over 2" were installed through thickened insert plates. Tank Details: D - 120' Height - 32' Fill...
  7. Cristian N

    Localized area of concern on shell

    So one of our maintanance personnel noticed coating failure in a straight localized vertical line initiating from the top shell course down to the second(shell course above the bottom one. We decided to further investigate and realized the ID of the tank displayed an affected area, but we don't...
  8. Cristian N

    Open box cart portable tank in inspected in accordance with API 653

    Guys, The client is requiring me inspect an open box cart style portable tank in accordance with API 653. The tank is similar to the one I am showing you in the attachment, except it doesn't have wheels. Is installed on top of a skid. Long story short, this is my first time inspecting this...
  9. Cristian N

    API 570 T-MIN and MAWP with no pipe information

    I am currently working as an API pipe inspector on a loading dock. A majority of the piping is overwater. That being said besides the design pressure and operating temperature, the customer has absolutely no previous history on the piping. Therefore, I will calculate the MAWP and T-Min per API...

Part and Inventory Search