Product Details

MOOG A02KA4F0VAY is a custom high-performance two-stage mechanical feedback electro-hydraulic servo valve, designed for demanding precision closed-loop hydraulic control systems. This moog servo valve adopts polarized torque motor and dual-nozzle flapper pilot stage structure, delivering fast dynamic response, ultra-low hysteresis and outstanding repeatability under long-term continuous cyclic loading operations. It uses mechanical spool feedback to stabilize hydraulic flow output without electronic spool position feedback, maintaining stable control performance under vibration and ambient temperature variation in harsh industrial environments. A field-replaceable first-stage filter is integrated inside the valve body, which can trap solid contaminants in hydraulic fluid, protect finely machined internal valve components and reduce maintenance frequency and system downtime. It accepts analog current command signals to drive the torque motor, adjust spool opening and convert electrical command signals into proportional hydraulic flow output, so as to precisely control the displacement, speed and loading force of hydraulic actuators. The valve body is precision machined from high-strength alloy steel with anti-corrosion surface treatment, compatible with mineral oil and fire-resistant hydraulic fluid. This custom electro-hydraulic valve supports 3-way and 4-way hydraulic circuit layout, widely used in material fatigue test benches, aerospace structural loading test systems, automotive component durability test equipment and multi-channel hydraulic simulation platforms. It can cooperate with MOOG digital servo controllers to build complete multi-axis synchronous electro-hydraulic closed-loop control systems for heavy industrial loading projects.

Brand: MOOG

Model: A02KA4F0VAY

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

Structure: Polarized 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: Field replaceable first stage filter

Fluid Medium: Mineral oil, fire-resistant hydraulic fluid

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