ASME II tables for maximum temperature?

[Johnwoo1991]

Which table of ASME II for maximum temperature for Api 6d ball valves?

Can i use table U for maximum temperature limit of ferrous materials or should i use Table 1A?

Or even Asme b16.34 and B31.3?

 

[ShabsRBI]

Hi,
Ball valve temperature limits are defined by the type of seating used in Ball valve. Commonly used seating material is Teflon hence application temperature is limited to 400 Deg F or 204 Deg C. You can check with the valve manufacturer and they will provide you the maximum operating temperature limits.