MOOG G631-3702B
The MOOG G631-3702B is a high-performance, 2-stage flow control servo valve designed for electrohydraulic closed-loop control systems. As part of the robust G631 series, this valve utilizes a nozzle-flapper pilot stage with mechanical feedback, ensuring precise and responsive control of position, speed, pressure, or force. It is engineered for demanding industrial applications requiring high dynamic performance, accuracy, and reliability. The G631-3702B is recognized for its durable construction and consistent operation in challenging hydraulic environments.
Technical Specifications:
- Valve Type: 2-stage flow control servo valve
- Pilot Stage: Nozzle flapper with mechanical feedback
- Series: G631
- Model: G631-3702B
- Rated Flow: 38 l/min (10 gpm) at 70 bar (1000 psi) pressure drop per land
- Maximum Operating Pressure: Up to 350 bar (5000 psi)
- Mounting Pattern: Conforms to ISO 10372-04-04-0-92
- Electrical Connector: Typically 6-pin + PE (Protective Earth), e.g., MS3102R14S-6P style (confirm specific build)
- Coil Configuration: Typically series coils (confirm specific build for current/resistance)
- Hysteresis: < 3% of rated current
- Threshold: < 0.5% of rated current
- Fluid Compatibility: Mineral oil based hydraulic fluids (e.g., HL, HLP); consult manufacturer for compatibility with other fluids
- Typical Frequency Response (-3dB): >90 Hz (for 38 l/min valve, may vary with specific configuration)




| Brand | MOOG |
|---|---|
| Model | G631-3702B D01HABF6VSX2-B |
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