| Feature | Specification |
| Product Model | D41VW004C4NJW3B |
| Manufacturer | Parker Hannifin |
| Valve Type | Solenoid Operated Directional Control Valve |
| Nominal Size | NG10 / CETOP 05 |
| Max Operating Pressure | 350 bar (5000 PSI) |
| Max Tank Pressure | 210 bar (3000 PSI) |
| Max Flow Rate | 150 L/min (40 GPM) |
| Spool Type | 004 (Cylinder port blocked in center) |
| Solenoid Voltage | 24 VDC |
| Seal Material | Viton (Fluorocarbon) |
| Electrical Connection | DIN 43650 (Standard) |
📦 Warranty&Reture Policy:
🛡️ 1、One year warranty. If the product malfunctioned under proper usage per instructions manual within the warranty period, please contact us to obtain shipping instructions and send it back at your shipping costs.
🔍 2、14days evaluation and investigation takes placed after receiving yourreturn item.
❓How Servo Valves Differ from Proportional Valves
Both kinds of valves move a spool in proportion to an input current, and both can sit in the same machine doing similar-looking jobs. However, the differences are mechanical and matter for repair.
️ ️🛡️Servo Valves
A servo valve uses a small pilot stage (torque motor or jet pipe) to push a close-tolerance spool through tight tolerances.
- Feedback: Closed-loop feedback is built in.
- Performance: Bandwidth is high, often > 100 Hz on smaller units.
- Vulnerability: Tolerances are extremely tight, which is why contamination is the most common failure.
⚡Proportional Valves
A proportional valve uses a larger coil-driven solenoid that moves a bigger spool directly.
- Feedback: Many are open-loop, though servoproportional variants add LVDT spool-position feedback.
- Performance: Bandwidth is lower, but flow capacity is higher, and the unit tolerates dirtier oil.
- Common Families:
- Bosch Rexroth: 4WRPH
- Atos: DLKZOR
- Yuken: OBE EL
- Duplomatic: DXE
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