Moog D661-5712 Servo Control Valve with Electronic Feedback
Moog D661-5712 Servo Control Valve with Electronic Feedback
Product Introduction: The D661-5712 is a high-precision servo control valve designed for electro-hydraulic systems requiring tight tolerance control. It combines a pilot-operated design with electronic feedback to regulate flow and pressure, ensuring accurate actuator positioning. The valve is built to withstand heavy-duty use, making it suitable for industrial and aerospace applications.
Technical Specifications: The maximum operating pressure is 350 bar (5,000 psi). The rated flow is 20 to 200 l/min (5.3 to 53 gpm) at 35 bar (500 psi) pressure drop. The 100% step response time is 6.5 to 14 ms. It operates on 24 VDC and accepts ±10 V or 4-20 mA signals. The valve features ISO 4401 size 05 mounting and weighs 5.6 kg.
Functional Features: Electronic feedback via a displacement sensor enables closed-loop spool control, reducing hysteresis to <1.0% and improving repeatability. The ServoJet pilot stage enhances dynamic response, allowing rapid adjustments to input signals. It includes a fail-safe function that returns the spool to a neutral position during power loss, preventing unintended movement. The valve’s robust construction resists contamination, ensuring long-term reliability.
Application Scenarios: Critical in aerospace for controlling aircraft flap and landing gear actuators. In metal stamping presses, it regulates ram speed and force to prevent material deformation. It also controls test equipment, such as fatigue testers, ensuring precise load application for accurate material performance data.
