Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Search results for query: *

  • Users: 1169
  • Order by date
  1. 1169

    Welding after hydrotest

    Would it be permissible to weld non pressure parts to the interior of a vessel after hydro testing when not subject to PWHT? I know that UG- 99 a.1 indicates that all fabrication should be complete before hydrotesting, but does this not apply only to pressure envelope? Thanks for any information
  2. 1169

    strip lining

    I am trying to find some literature or specification on strip lining. Have to apply 1/8" 304l liner to 3/4"SA516-70 plate. Do I weld with 309 or do I have to use two passes, one 309 and one 304L. How wide a strip do I use for 60" ID and 50 psi design pressure. what is usual gap between strips...
  3. 1169

    Painting of pressure vessels before hydrotest

    ASME VIII UG 99 (k)indicates that vessels may be painted prior to pressure test. We want to do this to save time. However same paragraph indicates that paint may mask leaks. With this kind of wording nobody will allow painting before pressuring. Is there any pressure limit above which leaks will...
  4. 1169

    tell tale holes

    Tell tell holes in vessel flange reinforcements are usually 1/4" threaded. What is maximum pneumatic pressure that can be applied?
Back
Top