Well I may be reading to much into it but yes I think the table applies to your tires. Why would they provide a load inflation table and have a specific set of tires listed and the load inflation table not be for them. It appears on the second chart that all the tires in that chart are for their "S" series of tires(I have no idea if Sumitomo has other lines of tires that are not part of their "S" series)
Many of the load inflation tables I have seen encompass multiple tires. I have seen them broken out by specific type tires, or under specific categories ie rv tires, or truck and bus tires before or just by size for their entire line. The Tire and Rim Association I think and I may be wrong has set standards that size and load rating and psi requirements for that are standard across all tires regardless of brand. Load range A, B, C, D, E, F, G, H in a specific size should have the same load inflation pressures. I mean what good would the rating be if a load range E tire didn't mean the same thing across different tires in the same load range and in the same size. Are there exceptions probably there seems to be in everything else but they certainly aren't going to be way different.
Remember the tables are a starting point. I would not go under the recommended inflation for a given weight but you can certainly go higher as you may find handling, wear and or performance is better on a specific vehicle at a higher pressure than stated due to specific characteristics of that vehicle. A perfect example would be the highly likely situation where an rv is not really properly balanced from one side to the other. Yes you get an axle weigh of say 7000lbs so you divide by two to get 3500lbs a tire. That works as long as the axle weight is evenly split between the two tires but it is not that uncommon for an rv to have one side heavier than the other. In which case it could be enough to increase the inflation pressure on both tires to cover the lopsided weight.
Sorry, getting longwinded bottom line is I would have no issue whatsoever in using that load inflation table for your tires based on what I read in that link.
