Hi All,

API 14C stated that all pressure vessel should be equipped with low pressure trip just incase leak or rupture. Need advice on two things:

  • Any other reasons behind PSLL?
  • How to determine the value/ set point of this low trip?
  • Most of the times, small leaks can't be detected using pressure switch. Usually the feed has more mass to provide for the leak thus pressure reduction is not significant.


Appreciate the advice.