Product Overview
The MOOG 0761-3034B / S63JOGB4VPL is a high-performance, two-stage electrohydraulic servo valve manufactured by MOOG, the global benchmark in precision motion control. Engineered around a torque-motor pilot stage driving a spool-type second stage, this valve converts low-power electrical command signals into highly accurate, bidirectional hydraulic flow and pressure outputs. The S63JOGB4VPL designation identifies a size 63 (NG63 / ISO 4401-08 interface) servo valve with a specific spool lap configuration and rated flow characteristic, making it a direct-fit solution for demanding closed-loop position, velocity, force, and pressure control applications. Its fast dynamic response, minimal hysteresis, and excellent null stability make it the actuator of choice in industrial systems where repeatability and precision are non-negotiable.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Two-Stage Electrohydraulic Servo Valve (Torque Motor Pilot + Spool Second Stage) |
| Model Designation | MOOG 0761-3034B / S63JOGB4VPL |
| Valve Size / Interface | NG63 (Size 63), ISO 4401-08 / CETOP 8 mounting pattern |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated system pressure) |
| Rated Flow | Nominal 63 L/min at 70 bar valve pressure drop per land (size 63 characteristic) |
| Pilot Stage | Dry torque motor with dual nozzle-flapper / jet feedback mechanism |
| Spool Configuration | Four-way, three-position closed-center spool with mechanical feedback spring |
| Input Signal | Analog current command (typically ±10 mA to ±40 mA, coil-dependent) |
| Mounting & Connection | Subplate mounting per ISO 4401-08; electrical connection via standard MS / industrial connector |
| Hysteresis & Threshold | Typically <3% and <1% of rated current respectively |
Engineering Features & Advantages
- Precision Performance: The torque-motor pilot stage delivers extremely high resolution and low hysteresis, enabling accurate metering of spool position and precise control of actuator flow and pressure in closed-loop systems.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
Its fast dynamic response, minimal hysteresis, and excellent null stability make it the actuator of choice in industrial systems where repeatability and precision are non-negotiable.
PRODUCT IMAGES

MOOG 0761-3034B / S63JOGB4VPL 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 0761-3034B / S63JOGB4VPL Servo Jet Pilot Valve. This Germany-made 24V DC hydraulic component features a two-stage servo jet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.