Thanks a lot Chance
If i Fill in the temperature associated with the largest safety valve area, thus valve vendor can't consider the worst case of the temperature for your on material selection, does it OK? why?
How to fill in the "Rel. Temp." column of the PRESSURE RELIEF VALVES Spec. form of ISA S20?
For example, if the relief capacity of fire case is less than block discharge case, but its relief temperature is higher than block discharge case, Thus we should use the relief capacity of block...