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  1. toriche

    Liquid (dye) penetrant examination

    Dear Members, I am trying to put together a procedure for inspecting parts for surface cracking, liquid penetrant in particular. I would like to know if someone can guide me to the source for a step by step procedure. Is ASTM E165 a good source for this? I don't have the standard but I'll buy...
  2. toriche

    Inspection Accuracy VS. Dimensional Accuracy

    Does anybody know what are the industry-accepted practices when it comes to dimensional inspection? Is there an industry standard for this? I have seen dimensional inspections where inspection accuracy exceeds that of the engineering drawing. In other words, a 2-decimal place dimension in a...
  3. toriche

    NPT connections per API 6A

    Does anybody know why API 6A designates NPT threads acceptable only up to 10,000 psi (Section 4.4.4.2.a)? Are these not safe at higher pressures? for 15k ansd 20k applications, API 6A recommends coned-and-threaded connections (Section 4.4.4.2.b). Thank you.
  4. toriche

    NPT connections per API 6A

    Does anybody know why API 6A designates NPT threads acceptable only up to 10,000 psi (Section 4.4.4.2.a)? Are these not safe at higher pressures? for 15k ansd 20k applications, API 6A recommends coned-and-threaded connections (Section 4.4.4.2.b). Thank you.
  5. toriche

    NPT threads performace data

    Charlie, Both cases would be of interest to me. Thank you.
  6. toriche

    NPT threads performace data

    Does anybody have information about the performance of NPT threads at high pressures (10-15 KSI)? Any publications, performance tables or the like will be very helpful. Thanks for reading my questions.

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