22gpm, everything is 3/4 into the flow control valve. Then 1/2 inch out of that and 1/2 inch out of the log lift valve. I tried to order an adjustable release valve for the ram valve but it was the wrong one. The guy at the shop I tried to order it from asked what valve I had and I sent some pictures. He didn’t have the right valve but he sent me some pics of my valve parts break down and showed me where to shim it to add pressure. I added 2 1/4” washers on top of what was there and got the pressure up to 2800psi I used the splitter yesterday and it was exactly what I wanted it to do. With the calculations I should have bumped up from 25000lbs to 35000lbs. I also took some temp readings with my thermometer and after 3 hrs was at 160 degrees. Before I put in the shims the day before I used it for 4 hrs and was taking readings the whole time. Was up at 170-180, so it all helped. I appreciate all the feedback and as long as temps stay where they are I’m good, splitters bitchin. I am now gonna save up for a dump valve so my recoil is faster, so I can get the pusher out of the way quicker .
That flow control seems to be plumbed strange to me, unless I'm not looking at it correctly. I'm by no means a hydraulic expert though.
The splitter cylinder valve to tank flows to the flow control on a 3/4" line, but then the flow control goes to tank on a 1/2" line?
That should be 3/4" as well.
For 22gpm, 3/4" hose is fine. The lines to the splitter cylinder should be 3/4" as well.
Put a pressure guage on your splitter control valve.
If cylinder return pressure is low, like under ~500psi, a pilot operated check valve isn't going to make any noticeable difference.
Only way it'll help is if your control valve, lines and/or fittings aren't sized large enough, which on a cylinder with a large rod (high retract flow) can be an issue.
4" cylinder and 2" rod at 22gpm is only about 28 gpm return. Most common splitter valves are 25-30gpm rated.
Stick a gauge on it and test before tossing parts into it.
Between fittings, hoses and a valve, you'll easily be into it $300.