Multiple steam users combining to 1 trap station?

I have a situation where it would be really simple and convenient to have two different heaters combine into 1 trap station. They are the same pressure steam, but one user uses ~7x more steam than the other however. Would I be ok having the condensate from each user tie in together and then go to 1 trap station or would that cause a lot of back flow into the lower load heat exchanger? I could probably put check valves on both condensate lines to ensure no back flow if necessary. There will be throttling valves on both lines if that makes a difference.

I also have a situation where I have multiple users that would have roughly the same steam load. Would that make a difference in trapping them all to a common station?