Product Details

MOOG A58227-001 is a custom two-stage mechanical feedback electro-hydraulic servo valve, developed for high-demanding precision closed-loop hydraulic control systems used in industrial test and aerospace equipment. This moog servo valve is equipped with polarized torque motor and dual-nozzle flapper pilot stage structure, which can achieve fast dynamic response, ultra-low hysteresis and stable repeatability under long-term continuous cyclic loading conditions. The mechanical spool feedback structure can maintain stable hydraulic flow output without electronic spool position feedback, and can still maintain consistent control performance under mechanical vibration and ambient temperature changes in various harsh industrial environments. A field-replaceable first-stage filter is integrated inside the valve body to intercept solid particulate contaminants in hydraulic fluid, protect the finely machined internal components of the servo valve, reduce maintenance frequency and unexpected system downtime. It accepts analog current command signals, drives the torque motor to adjust the opening of the spool, and converts electrical command signals into proportional hydraulic flow output, so as 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 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 large material fatigue test benches, aerospace structural loading test systems, heavy-duty 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: A58227-001

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