What's the difference between an electric proportional valve and an electromagnetic valve?
other valve is different, its energy losses are larger, because it needs some work flow to maintain the pre level control circuit.
So the use of proportional valve or servo valve the purpose is: to achieve the throttling of flow control in electronic control mode
The other is a continuous control valve can be opened to an arbitrary opening, thereby controlling the flow through the size of this type of valve with manual control, such as throttle valve
A control switch is open, either or both, or the maximum or minimum flow, no intermediate state, such as the common electromagnetic through valve, solenoid valve, electro-hydraulic valve.
