Product Overview
The MOOG H38JOGM4VPL / G761-3004B is a high-performance, two-stage electrohydraulic servo valve manufactured by Moog Inc., the global benchmark in precision motion control. Engineered around Moog’s proven G761 series architecture, this valve utilizes a torque-motor-driven, double-nozzle pilot stage that hydraulically positions a precision-ground, four-way sliding spool in the second stage. The result is exceptionally fast, linear, and repeatable control of flow direction and magnitude proportional to an analog electrical command signal. As the interface between electronic controllers and hydraulic actuators, this servo valve is a critical motion-control element in closed-loop industrial systems demanding high dynamic response, minimal hysteresis, and long-term null stability.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electrohydraulic Servo Valve (Two-Stage, Four-Way Sliding Spool) |
| Model Designation | H38JOGM4VPL / G761-3004B |
| Manufacturer | Moog Inc. |
| Pilot Stage Principle | Torque motor with double-nozzle / flapper hydraulic amplifier |
| Second Stage | Four-way, closed-center, precision-ground sliding spool with positional feedback |
| Operating Pressure | Standard Industrial Grade (Up to 210 bar / 3000 psi rated supply) |
| Rated Flow Capacity | Nominal 38 L/min at 70 bar valve pressure drop per land (per G761 sizing convention) |
| Command Signal | Analog current command (differential, typically ±40 mA range) |
| Mounting & Connection | Standard ISO 4401 / Moog subplate interface with 4-way porting |
| Hydraulic Fluid | Mineral-based hydraulic oil, ISO VG 32–68, cleanliness ISO 4406 Class 16/13 or better |
Engineering Features & Advantages
- Precision Performance: The double-nozzle pilot stage delivers high spool actuation force with very low threshold and hysteresis, enabling accurate metering of flow in both directions and precise positioning of downstream actuators in closed-loop control.
- High Dynamic Response: Low-inertia torque motor and optimized flapper geometry provide fast step response and wide frequency bandwidth, essential for high-gain position, velocity, and force control loops.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Precision-manufactured to original MOOG specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
As the interface between electronic controllers and hydraulic actuators, this servo valve is a critical motion-control element in closed-loop industrial systems demanding high dynamic response, minimal hysteresis, and long-term null stability.
PRODUCT IMAGES
MOOG H38JOGM4VPL / 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 H38JOGM4VPL / G761-3004B Servo Valve. This Germany-made hydraulic component features a two-stage design with mechanical feedback, delivering leak-free, reliable fluid control for heavy-duty industrial systems.