The MOOG G631‑G761‑3033B is a high‑performance two‑stage electro‑hydraulic flow‑control servo valve with mechanical feedback. It converts 24 VDC electrical control signals into continuously adjustable hydraulic flow and pressure output. It accurately controls position, velocity, force and pressure of hydraulic actuators, acts as the core control component of closed‑loop hydraulic systems. With IP65 protection grade, it adapts to dusty, splash‑prone industrial workshop environments, widely deployed on high‑precision machinery and hydraulic test benches for stable and repeatable motion control.
| Item | Specification |
|---|---|
| Model | G631‑G761‑3033B |
| Valve Type | 2‑Stage Electro‑Hydraulic Servo Valve, Mechanical Feedback |
| Protection Grade | IP65 |
| Power Supply | 24 V DC |
| Pilot Stage | Nozzle‑flapper torque motor |
| Main Stage | Four‑land sliding spool |
| Rated Flow | 63 L/min @35 bar pressure drop per spool land |
| Max Operating Pressure | P/A/B/X port: 315 bar; Return T port:210 bar |
| Step Response Time | ≤12‑16 ms (100% full‑scale signal) |
| Hysteresis | ≤3.0 % |
| Input Control Signal | 8‑200 mA |
| Mounting Standard | ISO 10372‑04‑04‑0‑92 |
| Hydraulic Medium | Petroleum‑based hydraulic oil, water‑glycol, phosphate ester fluid |
| Ambient Working Temperature | ‑20℃ ~ +80℃ |
| Weight | Approx 1.35 kg |
| Certification | CE certified for industrial equipment |