The Winner FR13A20AL is a high-performance, screw-in cartridge-style, 3-way priority flow regulator. It is designed to provide a constant, pressure-compensated flow rate to a primary circuit (CF port) while bypassing excess flow to a secondary circuit (BP port). This valve ensures that the priority function, such as a steering or motor circuit, receives a consistent flow regardless of variations in load pressure or input flow. Its robust steel construction and precision engineering make it a reliable component for demanding mobile and industrial hydraulic systems requiring precise flow control.