Product Overview
The MOOG G761-3034B / S63JOGB4VPL 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, flapper-nozzle pilot stage that hydraulically positions a precision-ground spool within the second stage, delivering infinitely variable, bidirectional flow control proportional to the electrical input signal. Engineered for closed-loop position, velocity, and force control, the G761 series is the industry-standard interface between electronic controllers and high-response hydraulic actuation in demanding industrial and aerospace-derived motion systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Two-Stage Electrohydraulic Servo Valve (Flapper-Nozzle Pilot, Spool Second Stage) |
| Model Designation | G761-3034B / S63JOGB4VPL |
| Operating Pressure | Standard Industrial Grade (Up to 210 bar rated supply pressure) |
| Rated Flow Capacity | Nominal 5–40 L/min class at 70 bar per land (model-dependent) |
| Input Signal | Analog current command, differential torque-motor coil configuration |
| Mounting & Connection | Standard ISO / MOOG subplate interface with 4-way porting (P, T, A, B) |
| Spool Configuration | Closed-center, zero-lapped critical spool for high-resolution metering |
| Dynamic Response | High-frequency response (typically 100–250 Hz at -90° phase lag, load-dependent) |
Engineering Features & Advantages
- Precision Metering: Zero-lapped critical spool and flapper-nozzle pilot stage deliver extremely fine flow resolution and minimal hysteresis for accurate closed-loop control.
- High Dynamic Response: Low-inertia torque motor and optimized hydraulic pilot design enable rapid valve actuation, essential for high-bandwidth servo loops.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction resistant to contamination when properly filtered.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG G761 series OEM standards, ensuring drop-in interchangeability.
- Stable Null Characteristics: Symmetrical pilot and spool geometry maintain consistent null bias and low threshold, critical for precise positioning tasks.
Typical Industrial Applications
This MOOG servo valve is widely deployed in plastic injection molding machines for precise injection and clamp control, metallurgical presses and rolling mills requiring high force and position accuracy, CNC machine tools and robotics for multi-axis motion, and construction, marine, and test-stand hydraulics where fast, accurate response under heavy loads is mandatory.
PRODUCT IMAGES
MOOG G761-3034B / S63JOGB4VPL 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 G761-3034B / S63JOGB4VPL Servo Proportional Valve. This US-made hydraulic component features a high-response pilot stage, delivering precise, leak-free fluid control for heavy-duty industrial systems.