MOOG G771K625A Two-Stage Electro-Hydraulic Servo Valve

  • 0 reviews
  • Write a review
    • Product Code: G771K625A
    • Availability: In Stock
    MOOG G771K625A
    Part No: G771K625A
    Manufacturer: MOOG (穆格)
    Type: Two-Stage Electro-Hydraulic Servo Valve
    Design: Double Nozzle-Flapper, Mechanical Feedback (MFB)
    Mounting: Size 02 (ISO 10372-02)
    1. General Description
    The MOOG G771K625A is a high-performance two-stage servo valve with a dry torque motor and low-friction double nozzle-flapper pilot stage. It delivers precise flow control for closed-loop hydraulic systems, featuring high dynamics, excellent resolution, and low hysteresis. Designed for harsh industrial and hazardous environments (intrinsically safe variant).
    2. Key Specifications
    • Max Operating Pressure: 315 bar (31.5 MPa)
    • Rated Flow: 24 L/min (at Δp 70 bar)
    • Rated Current: ±15 mA (H-type coil)
    • Step Response (0–100%): ≤ 4 ms
    • Frequency Response (-90°): ≥ 115 Hz
    • Hysteresis: ≤ 3.0% rated signal
    • Resolution: ≤ 0.5% rated signal
    • Weight: 0.86 kg
    • Seal: FKM (Viton)
    3. Model Code Meaning
    • G771: Two-stage servo valve series, Size 02
    • K: Intrinsically safe / explosion-proof
    • 625: Internal configuration (flow, coil, feedback)
    • A: Design revision / upgrade
    4. Typical Applications
    • Power generation (turbine control)
    • Petrochemical & oil/gas (hazardous areas)
    • Metal rolling mills & test benches
    • Aerospace test systems
    • High-performance industrial hydraulics
    MOOG © G771K625A | Electro-Hydraulic Servo Valve


    Write a review