The Winner PD11A30AL is a high-performance, screw-in, cartridge-style, proportional pressure reducing/relieving valve. It is designed to function as a pressure-regulating device for secondary circuits where the pressure setting can be continuously adjusted based on a proportional DC electrical input signal. This pilot-operated, spool-type valve modulates flow to maintain a constant reduced pressure at port 1, regardless of pressure fluctuations at the inlet (port 2). If the pressure at port 1 exceeds the valve’s setting, it will relieve the excess pressure to the tank (port 3), providing excellent circuit protection and control. The PD11A30AL is designed for installation in a standard T-11A cavity.