I. Basic Information

Model: A67999-065

Series: MOOG 761 Series (Industrial-grade High-performance Servo Valve)

Structure: Two-stage, dry torque motor, dual nozzle baffle pre-stage, four-way slide valve output stage, MOOG China

Weight: Approximately 3.2 kg

Connection: 4-pin MS thread connector (standard aviation plug)

Origin: USA / Germany

Status: In production, mainstream and commonly used model, sufficient supply

II. Core Functions

Convert **±10 to ±40 mA electrical command signals precisely into hydraulic flow / pressure output**

Used for closed-loop position, speed, force / pressure control, with fast dynamic response and high precision. MOOG China

Built-in mechanical feedback (cantilever spring), valve core positioning stable, hysteresis small, resolution high. MOOG China

III. Key Technical Parameters (Typical 761 Series)

Rated flow: 10 L/min (Δp = 70 bar)

Working pressure: Maximum 210 bar (3000 psi)

Control signal: ±20 mA (standard)

Coil resistance: Approximately 80 Ω / coil

Frequency response: -3dB ≥ 100 Hz

Hysteresis: < 3%

Resolution: < 0.1%

Operating temperature: -20℃ to +60℃

Sealing: Nitrile rubber (NBR) / FKM optional

IV. Typical Applications

Industrial hydraulic servo control: Material testing machine, fatigue testing machine

Simulation and testing: Flight simulator, vibration table, automotive testing system

Metallurgy: Rolling mill tension control, roll gap control

Aerospace / Military: Engine control, servo control, precision hydraulic actuator

Power generation / Heavy industry: Steam turbine control, synchronous control of heavy equipment