Flow sensing and valve port design: By using a special contour valve core or compensating throttle port, the hydraulic force acting on the valve core remains relatively constant or generates a favorable compensation trend when the flow rate through the valve port changes. Steady state pressure maintenance: When the flow rate through the valve changes from zero to the rated value, the pressure reducing valve can control the change in outlet pressure (usually referred to as pressure overshoot or drop) within a very strict range, such as ± 3%, ensuring that the actuator can obtain stable thrust or torque at different speeds.