Pressure compensation is the control of flow by compensating for the changes in load pressure. Most hydraulic systems today use pre-compensation as a means of maintaining consistent flow from an orifice or spool. However, there are applications when post-compensation has advantages over pre-compensation.
Many will have experienced working with machine manufacturers who have struggled to make their products run smoother, quieter, and at the same time, attempted to improve the machine's production capability.
Stand-alone relief valves are relatively simple to set properly. After installing a relief valve in a circuit, with the pressure port connected to the pressure line and the tank port connected directly to the reservoir, adjust the relief valve to its lowest possible pressure setting.