Proper RPM for PTO operation

[NoTime]

I haul propane and have to pump off 1 to 2 times a day and it takes about an hour. I have a valve on trailer that I can control how fast the pump runs but my problem is if I idle it up to a 1000 RPM I can’t open up the valve very far because the pump on the trailer can only run so fast which heats my hydraulic fluid up pretty high even with a hydro pack to help cool the oil. If I idle around 700 I can open valve all the way up and it keeps my fluid cooler. Kind of a catch 22.

So is it better to run PTO at 1000 RPM for the emissions or does 700 for an hour really make any difference?

It’s a 2013 2350