Are there any guidelines for leak testing of heat exchangers? This is not for code strength repairs, but more for product contamination. I believe that they should be tested at some factor of operating pressure, but less than MAWP or design pressure. We have found that 1.1 or 1.5 time design...
What has been your experience with thread high-pressure steam piping? I have been asked to consider using temporary threaded steam piping for 300 psi steam at about 500 deg. F. The piping is 2", extra strong, carbon steel, A106. There would be no plans to backweld the threads. I am...