Product Overview
The MOOG G761-3004B is a high-performance, two-stage electrohydraulic servo valve from the renowned Moog G761 series, engineered for precision motion control in demanding industrial and aerospace-grade hydraulic systems. Utilizing a dual-stage design, the first stage features a torque motor and flapper-nozzle assembly that hydraulically actuates the second-stage spool, delivering exceptionally fast dynamic response, high resolution, and minimal hysteresis. This servo valve serves as the critical control element in closed-loop systems, precisely metering hydraulic flow and direction proportional to an electrical input signal, making it ideal for applications requiring superior accuracy, repeatability, and reliability.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electrohydraulic Servo Valve (Two-Stage, Flapper-Nozzle Pilot) |
| Model Designation | MOOG G761-3004B |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Rated Flow | Nominal 40 L/min at 70 bar per land (typical for size 04) |
| Mounting & Connection | Standard ISO 4401 / Moog Interface, Subplate Mounting |
| Electrical Interface | Standard Moog Torque Motor Connector, ±10 VDC or ±mA Command Signal |
| Hysteresis | < 3% (typical) |
| Frequency Response | High dynamic response, up to 100 Hz at 90° phase lag (dependent on signal amplitude) |
Engineering Features & Advantages
- Precision Performance: The two-stage flapper-nozzle pilot design ensures extremely high resolution, low threshold, and minimal hysteresis, enabling accurate position, velocity, and force control in closed-loop hydraulic systems.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction that resists contamination and maintains stable performance over millions of cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Moog G761 series servo valves, ensuring drop-in replacement without modification to manifolds or control electronics.
- Fast Dynamic Response: Optimized torque motor and hydraulic amplification provide rapid response to command signal changes, critical for high-cycle industrial and aerospace applications.
- Enhanced Contamination Tolerance: Internal filtration and hardened spool/ sleeve components extend service life even in demanding hydraulic circuits.
Typical Industrial Applications
The MOOG G761-3004B servo valve is widely deployed in high-precision motion control systems, including plastic injection molding machines for accurate injection speed and pressure profiling, metallurgical presses for precise force and position control, CNC machine tools and testing equipment for dynamic axis actuation, and aerospace/defense ground test rigs and flight simulators. It is also found in steam and gas turbine control systems
PRODUCT IMAGES
MOOG G761-3004B Servo Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine MOOG G761-3004B Servo Valve. This USA-made high-performance hydraulic component features a two-stage design with mechanical feedback, delivering leak-free, reliable fluid control for heavy-duty industrial systems.