Is trim 1 applied on gate valves for steam tracing manifolds (3.5k steam) the right selection? For the most part Trim 1 is not usually in standard valves anymore. From my experience the only people using Trim 1 are nuclear power plants trying to reduce Cobalt in the system.
Trim 8 is used on most class 150 through 600 valves and Trim 5 for class 900 and above.

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