Proportional valve symbol and working principle.
In this valve the power supply to solenoid coil can be controlled by a regulator.It is same like conventional valve.In this valve the coil voltage can be very.
In this valve the spool movement can be controlled.The spool can be moved as per our requirement.
A amplifier is used to control this valve.It’s an open loop control.Large hysteresis (0.5%).
USE – flow,direction and pressure control.
Spools are overlapped.
We can use LVDT(Linear variable Differential Transformer) for feed back of spool movement.
Benfits of Propertional Valve
- The operation of this valve is very smooth.
- It synchronize multiple actuator.
- Used for remote operation.
- Step less control.
For more details click here.
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