Audited Supplier
MOOG G631
Ordinary Temperature
ISO9001
Oil
Standard
Hydraulic
WK
Paper Box
Standard
China
84818010
Product Description
Performance indices
Electrical interface
Overall and installation dimensions
Overall dimensions
Installation dimensions
*Requirement: Flatness less than 0.01mm, roughness below .
Comparison between Servo Valve Model and Moog Model
Certificate test
| Item | Unit | Index | |
| Supply pressure Ps | MPa | 2~31.5 | |
| Rated supply pressure Pn | MPa | 21 | |
| Rated flow Qn () | L/min | 40 | |
| Rated current In | mA | 40 | |
| Hysteresis | % | ≤3 | |
| Threshold | % | ≤1 | |
| Nonlinearity | % | ≤±10 | |
| Unsymmetry | % | ≤±10 | |
| Pressure gain | % | >30 | |
| Internal leakage | L/min | ≤2 | |
| Null bias | % | ≤±2 | |
| Null shift with temperature (ΔT=56ºC) | % | ≤±4 | |
| Null shift with supply pressure of (80~110%) Pn | % | ≤±4 | |
| Null shift with return pressure of (0~20%) Pn | % | ≤±4 | |
| Frequency response | Amplitude ratio with (-3dB) | ≥50 | ≥100 |
| Phase lag with (-90°) | ≥60 | ≥100 | |
| Working temperature | ºC | -15~100 | |
| Weight | kg | ≈2.8 | |
Electrical interface
| Item | Unit | Single coil | Parallel coil | Series coil |
| Coil resistance | Ω | 80 | 40 | 160 |
| Rated current | mA | 40 | 40 | 20 |
| Coil inductance | H | 0.72 | 0.36 | 1.44 |
Overall and installation dimensions
Overall dimensions
Installation dimensions
*Requirement: Flatness less than 0.01mm, roughness below .
| P | A | B | T | T2 | X | F1 | F2 | F3 | F4 | |
| ф11.5 | ф11.5 | ф11.5 | ф11.5 | ф11.5 | ф6.3 | M6 | M6 | M6 | M6 | |
| X | 27.0 | 16.7 | 37.3 | 3.2 | 50.8 | -9 | 0 | 54.0 | 54.0 | 0 |
| Y | 6.3 | 21.4 | 21.4 | 32.5 | 32.5 | 6.3 | 0 | 0 | 46.0 | 46.0 |
Comparison between Servo Valve Model and Moog Model
| WK Model | MOOG Model |
| SFL218 Series | MOOG 760/761 Series |
| SFL218A Series | MOOG G631 Series |
| SFL218B Series | MOOG062 Series (PLASSER) |
| SFL214,216 Series | MOOG 072 Series |
| SFL212A Series | MOOG 30 Series |
| SFL212/B Series | MOOG 31 Series |
| SFZ141 Series | MOOG D633 Series |
| SFZ142 Series | MOOG D634 Series |
| SFL317 Series | MOOG792 Series |
| SFL316 Series | MOOG791 Series |
| SFD234 Series | MOOG D661 Series |
Certificate test
