One of our clients has a ASME Section VIII, Consolidated model 19567 (area 0.567 in2) with metal seat, liquid trim (capacity of 31 gpm water), and 150 psig set pressure in their boneyard; is it legal to change the valve to steam trim and reduce the set pressure to 75 psig (it would be put onto a vessel in steam service with MAWP of 75 psig)? I know the cost savings won't be significant, but they want to anyway.
Edited by ryn376, 15 August 2018 - 01:52 PM.