What is the difference in principle between a proportional solenoid valve and an electric proportional valve?（2）

Second, the two are used differently:

1. The purpose of the proportional valve: The proportional valve is composed of a DC proportional solenoid and a hydraulic valve. The core of realizing the continuous control of the proportional valve is the proportional electromagnet. There are many kinds of proportional solenoids, but the principle of operation is basically the same. They are all developed according to the control requirements of proportional valves.

2. The use of ordinary valves: controlled by the pressure oil of the pressure distribution valve, usually used in combination with the electromagnetic pressure distribution valve, it can be used to remotely control the on-off of the oil, gas and water pipeline system of the hydropower station. Commonly used in clamping, control, lubrication and other oil circuits.