Product Overview
The MOOG 760A185A / S57FOFAAVPL 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 spool within the second stage, delivering infinitely variable flow control proportional to an electrical input current. Designed for closed-loop position, velocity, and force control architectures, the 760A185A / S57FOFAAVPL provides exceptional dynamic response, minimal hysteresis, and repeatable metering accuracy in the most demanding industrial and aerospace-grade hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Two-Stage Electrohydraulic Servo Valve (Flapper-Nozzle Pilot, Spool Second Stage) |
| Model Designation | MOOG 760A185A / S57FOFAAVPL |
| Operating Pressure | Standard Industrial Grade (Up to 210 bar rated, 315 bar peak) |
| Rated Flow Capacity | Nominal 5–40 L/min at 70 bar valve pressure drop (model-dependent) |
| Input Signal | Analog current command, ±10 mA to ±40 mA nominal (differential torque motor coils) |
| Mounting & Connection | Standard ISO 4401 / MOOG subplate interface with 4-way porting (P, T, A, B) |
| Hysteresis & Threshold | < 3% and < 0.5% respectively for high-accuracy closed-loop control |
| Frequency Response | 90° phase lag at 60–120 Hz (amplitude-dependent), enabling fast dynamic actuation |
Engineering Features & Advantages
- Precision Performance: The torque-motor flapper-nozzle pilot stage delivers extremely fine spool positioning, ensuring precise flow metering and minimal deadband for critical motion control loops.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with ruggedized construction, contamination-tolerant spool/ sleeve clearances, and stable performance across wide temperature and pressure ranges.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM MOOG 760A185A / S57FOFAAVPL specifications, including coil impedance, null bias, and port geometry for drop-in integration.
- High Dynamic Response: Fast response times and high loop gain capability support demanding servo applications requiring rapid acceleration and deceleration profiles.
- Low Leakage & Stable Null: Precision-matched spool and sleeve assembly minimizes internal leakage and maintains consistent null shift over the service life.
Typical Industrial Applications
This MOOG servo valve is widely deployed in high
PRODUCT IMAGES
MOOG 760A185A / S57FOFAAVPL 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 760A185A / S57FOFAAVPL Servo Valve. This US-made hydraulic component features a precise spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.