[rcguyfarms]

valve block changes the direction of fluid pressure in order to move a cylinder. dual wedico pumps work similar, meaning pump A pushes fluid into one side of the cylinder out while pump B pulls to fliud out of opposite side causing rod extension . When u reverse the direction of both pump motors, pump A now pulls fluid out and pump B pushes fluid in causing the rod to retract. Dual wedico pumps only works on one hydro cylinder function for example steering an articulated tractor. So if u want to operate steering plus some outlets for cylinder on a implement u need a valve block.

I am guessing this rig u are building would need a cylinder to push out the roll off and second cylinder to lift the roll off frame. If this is true, don't waste ur money on the dual wedico pumps idea, buy a lembach pump valve block.