[Espeefan]

Jason, set the pressure while the pump is running at full speed, but the system is not demanding any flow. That's the worst case scenario. It would be the same thing as having a valve open, with a cylinder deadheading the oil - meaning the load on the cylinder is large enough to resist the oil flow from the pump, hence the oil goes over the relief the same exact way. Pressure is the resistance to flow. When the system is demanding flow, the pressure will naturally decrease.