D633
Ordinary Temperature
ISO9001
Oil
Standard
Hydraulic
Servo Valve
2~28MPa
20L/Min
1.2kg
10 Ma
WK
Paper Box
Standard
China
84818010
Product Description
Performance indices
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 | 2~28 | |
| Rated supply pressure Pn | MPa | 21 | |
| Rated flow Qn() | L/min | 20 | |
| Rated current In | mA | 10 | |
| Hysteresis | % | ≤0.2 | |
| Threshold | % | 0.3 | |
| Nonlinearity | % | ≤±7.5 | |
| Unsymmetry | % | ≤±7.5 | |
| Pressure GAIN | % | >30 | |
| Internal leakage | L/min | ≤1.5 | |
| Null bias | % | ≤±1.5 | |
| Frequency response | Amplitude ratio with (-3dB) | Hz | ≥30 |
| Phase lag with (-90°) | Hz | ≥50 | |
| Working temperature | ºC | -15~100 | |
| Weight | kg | ≈1.2 | |
Overall and installation dimensions
Overall dimensions
Installation dimensions
*Requirement: Flatness less than 0.01mm, roughness below .
| P | A | B | T | Y | F1 | F2 | F3 | F4 | G | |
| ф7.5 | ф7.5 | ф7.5 | ф7.5 | ф3.5 | M5 | M5 | M5 | M5 | ф2 | |
| x | 21.5 | 12.7 | 30.2 | 21.5 | 40.5 | 0 | 40.5 | 40.5 | 0 | 33 |
| y | 25.9 | 15.5 | 15.5 | 5.1 | 9 | 0 | -0.75 | 31.75 | 31 | 31.75 |
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
