The Moog D661-4035 is a high-performance, pilot-operated servo-proportional directional control valve from the renowned D661 series. Equipped with integrated on-board electronics (OBE), this valve provides precise and dynamic control of flow and direction in demanding hydraulic systems. Its robust design ensures exceptional reliability and a long service life, making it an ideal choice for applications requiring high accuracy and repeatability, such as plastics machinery, metal forming presses, and automated test equipment. The integrated digital electronics allow for easy setup and diagnostics, ensuring optimal performance in sophisticated closed-loop control applications.