Product Details

MOOG 664-4383K is a high-performance two-stage electro-hydraulic servo valve with mechanical feedback, belonging to MOOG D664 series digital servo valve family, designed for high-precision closed-loop hydraulic control systems. This moog servo valve integrates a torque motor and dual-nozzle flapper pilot stage structure, providing outstanding dynamic performance, low hysteresis and excellent repeatability under long-term cyclic loading operations. It adopts mechanical spool feedback structure to stabilize flow output without electronic spool position feedback, maintaining stable control performance under industrial vibration and temperature changes. A built-in replaceable internal filter can capture solid particles in hydraulic oil, protect precision internal valve components and reduce maintenance work. It accepts standard analog current command signals, converting electrical control signals into proportional hydraulic flow output to accurately control the displacement, speed and loading force of hydraulic actuators. The valve body is precision machined from high-strength alloy steel with anti-corrosion treatment, compatible with mineral oil and fire-resistant hydraulic fluid, suitable for various harsh industrial working conditions. This electro-hydraulic valve is widely used in material fatigue test benches, aerospace structural loading test systems, automotive component durability test equipment and hydraulic simulation platforms. It can cooperate with MOOG digital servo controllers to build complete multi-axis synchronous electro-hydraulic closed-loop control systems for industrial loading and motion control projects.

Brand: MOOG

Model: 664-4383K

Series: D664 Series

Product Type: Two-stage Mechanical Feedback Electro-hydraulic Servo Valve

Structure: Torque motor, dual-nozzle flapper pilot stage

Feedback Type: Mechanical spool feedback

Control Signal: Analog current signal

Max Working Pressure: 350 bar (5000 psi)

Built-in Component: Replaceable internal filter

Fluid Medium: Mineral oil, fire-resistant hydraulic fluid

Application: Aerospace loading test,material fatigue test bench,automotive component test