Does anyone know where I can find the definition of "RT" values which are stamped on a coded vessel's nameplate.
I believe they are as follows, but i cannot find a single document to verify this.
RT-1: Full X-ray
RT-2: Spot X-ray
RT-3: No X-ray
I have referenced numerous on-line fluid compatibility charts for seals, seats and packing material compatible with natural gas/hydrocarbon and methanol(methyl Alcohol).
Almost every chart i look at is contradicting another.
Any know where to get a reliable list of materials compatible with...