Figure 6From: Flow Control for a Two-Stage Proportional Valve with Hydraulic Position FeedbackExperimental system of the Valvistor valve: 1. Filter, 2. Variable pump, 3. Check valve, 4. Oil tank, 5. Relief valve, 6. Cooler, 7. Pressure sensor, 8. Displacement sensor, 9. Flow meter for pilot flow, 10. Flow meter for total flow, 11. Pilot valve, 12. Main valveBack to article page