Well said and great advice again Michael.

Possibly for the recent wave of LNG plants, FERC (USA Government agency) rules MAY require a FFS evaluation for operation past the so called design life of 20 to 25 years. But from my observations also, the typical chemical plants and the LNG plants will still be running at 75+ years including revamps on top of revamps.
_________________________
Bob Zimmerman, P.E.
Vice President of The Piping Stress International Association (The PSI)