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4W159/4W180 Transmission Valve Body
- Transmission valve body is equipped with a solenoid valve, providing integrated electro-hydraulic control.
- Control valve is compact designed and highly integrated for excellent efficiency and reliability.
- Transmission valve offers 4x4 gear shift and boost pressure control, guaranteeing a smooth and stable gear shifting process.
- High operation comfort.
- Hydraulic valve is suitable for different applications and requires low maintenance costs.
Applications
- Loader
- Grader
- Other engineering machinery
Parameters
| Nominal flow (L/min) | 120 |
| Gear pressure (MPa) | 2.2-2.5 |
| Differential pressure of each gear (MPa) | ≤0.1 |
| Pressure swing (MPa) | ≤±0.1 |
| Gear pressure boost time (S) | 0.8-1.8 |
| Solenoid valve rated voltage (V) | DC24V |
| Rated current (A) | 0.35 (measured at rated voltage, 25 °C temperature) |
| Consumed power (W) | 8.5 |
| Insulation grade | H |
| Hydraulic fluid | Mineral oil (HL, HLP) in accordance with DIN 51 524 |
| Viscosity range (mm2/s) | 10-380 |
| Fluid temperature range (℃) | -20-120 |
| Fluid cleanliness | Not lower than GB/T 14039-93 level 19/16 or NAS 1638 level 10 |
| Weight (kg) | 51.5 |
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