Combines 6620 charge pump pressure

I believe it's quite normal for hydrostatic systems to be charged with pressure at approx. 20-30 bar. Be cautious of what you're working with, as the pressure on highpressure circuit is between 400-700 bar.

That pump will produce as much pressure as the relief you have in the open center system you will be making. Just that the gallons per minute for that pump is not that huge. Hope that helps.

Thanks for the help. Planning on adding a hyd. pump to my ole' Farmall H and just wanted to use what I have that's handy. (and cheap!!)