LKF series is full range pressure compensation variable flow control valve. After careful design, its throttle orifice area will change with the rotation of the valve stem. No matter how the pressure of the CF port EX port changes, the flow rate of the control port is always stable and constant. It has an adjustable spring safety valve so that the pressure can rise to the set safety pressure. The factory setting of the safety valve pressure is 1500psi, and the adjustable range is 750-3000psi.