Product Introduction: This model is part of Moog’s D672 series, designed for high-flow hydraulic applications requiring precise control. It integrates advanced servo technology with a robust valve body to handle large volumes of hydraulic fluid while maintaining accuracy. The valve is engineered for industrial environments where high flow rates and reliable performance are critical, such as in heavy machinery and large-scale manufacturing equipment.
Technical Specifications: The maximum operating pressure is 350 bar (5,000 psi). The rated flow rate exceeds 200 l/min (53 gpm) at a pressure drop of 35 bar (500 psi) per land. It operates on a 24 VDC power supply (18–32 VDC) and accepts input signals of ±10 V, ±10 mA, or 4–20 mA. The step response time is 15–30 ms for 0–100% stroke, ensuring rapid adjustment to signal changes.
Functional Features: Equipped with a ServoJet pilot stage for enhanced dynamic response, it delivers consistent flow control even at high operating pressures. The spool position is monitored via an integrated displacement sensor, with closed-loop control managed by a built-in electronic amplifier to minimize hysteresis (<1.0%). It includes a fail-safe mechanism that returns the spool to a neutral position during power loss, preventing system overloads. The valve’s large internal flow passages reduce pressure drop, optimizing energy efficiency.
Application Scenarios: Ideal for large hydraulic presses in automotive manufacturing, controlling ram speed and force during metal forming. It is also used in marine hydraulic systems to regulate thruster and steering actuators, ensuring precise vessel maneuvering. In renewable energy, it controls hydraulic systems in large wind turbines, adjusting blade pitch to maximize power output.
