Audited Supplier
Moog 31
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 | 20 | |
| Rated current In | mA | 40 | |
| Hysteresis | % | ≤4 | |
| Threshold | % | ≤0.5 | |
| Nonlinearity | % | ≤±5 | |
| Unsymmetry | % | ≤±5 | |
| Pressure gain | % | >30 | |
| Internal leakage | L/min | ≤2.0 | |
| Null bias | % | ≤±1 | |
| Null shift with temperature (ΔT=56ºC) | % | ≤±2 | |
| Null shift with supply pressure of (80~110%) Pn | % | ≤±2 | |
| Null shift with return pressure of (0~20%) Pn | % | ≤±2 | |
| Frequency response | Amplitude ratio with (-3dB) | ≥100 | ≥100 |
| Phase lag with (-90°) | ≥100 | ≥100 | |
| Working temperature | ºC | -15~100 | |
| Weight | kg | ≈0.4 | |
Electrical interface
| Item | Unit | Single coil | Parallel coil | Series coil |
| Coil resistance | Ω | 100 | 50 | 200 |
| Rated current | mA | 40 | 40 | 20 |
| Coil inductance | H | 1 | 0.5 | 2 |
Overall and installation dimensions
Overall dimensions
Installation dimensions
*Requirement: Flatness less than 0.01mm, roughness below .
| P | A | B | T | G | F1 | F2 | F3 | F4 | |
| Ф5 | Ф5 | Ф5 | Ф5 | ф3 | M5 | M5 | M5 | M5 | |
| X | 21.7 | 11.8 | 31.6 | 21.7 | 11.8 | 0 | 43.4 | 43.4 | 0 |
| Y | 7.2 | 17.1 | 17.1 | 27 | 4.3 | 0 | 0 | 34.2 | 34.2 |
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
