Product Overview
The MOOG G761-3005B / S63JOGM4VPL is a high-performance, two-stage electrohydraulic servo valve manufactured by MOOG, the global benchmark in precision motion control. This valve operates on a torque-motor, double-nozzle pilot stage driving a four-way, closed-center sliding spool second stage. It is engineered to convert low-power electrical command signals into precisely controlled hydraulic flow and pressure outputs, delivering the fast dynamic response, high resolution, and minimal hysteresis required for closed-loop position, velocity, and force control in demanding industrial and aerospace-grade motion systems. The G761 series is widely regarded as the industry standard for critical servo applications where accuracy, repeatability, and long-term reliability are non-negotiable.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electrohydraulic Servo Valve (Two-Stage, Four-Way, Closed-Center Spool) |
| Model Designation | G761-3005B / S63JOGM4VPL |
| Manufacturer | MOOG |
| Pilot Stage | Torque motor with double-nozzle / flapper assembly |
| Second Stage | Four-way sliding spool, closed-center configuration |
| Operating Pressure | Standard Industrial Grade (Up to 210 bar rated supply pressure) |
| Rated Flow | Nominal 5–40 L/min class (model-dependent, at 70 bar per land) |
| Rated Current | Standard MOOG torque motor coil (typically ±40 mA differential) |
| Hysteresis | < 3% of rated current (typical) |
| Threshold | < 0.5% of rated current (typical) |
| Mounting & Connection | Standard MOOG subplate / manifold interface, ISO 4401 port pattern |
| Hydraulic Fluid | Mineral-based hydraulic oil, ISO VG 32–68, cleanliness ISO 4406 16/13 or better |
Engineering Features & Advantages
- Precision Performance: The electrohydraulic servo valve (two-stage, four-way, closed-center spool) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings up to 210 bar and flow rates up to 40 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The G761 series is widely regarded as the industry standard for critical servo applications where accuracy, repeatability, and long-term reliability are non-negotiable.
PRODUCT IMAGES

MOOG G761-3005B / S63JOGM4VPL Servo Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- 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 G761-3005B / S63JOGM4VPL Servo Proportional Valve. This US-made hydraulic component features a precise spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.