Difference between solenoid valve and electric valve

1. Switch type:
The solenoid valve is driven by the coil and can only be opened or closed. The action time of the switch is short.
The driving of the electric valve is usually done by motor. It needs a certain amount of time to complete the opening or closing action. It can be adjusted.
2. Nature of work:
The general flow coefficient of solenoid valve is very small, and the working pressure difference is very small. For example, the flow coefficient of 25 caliber solenoid valve is much smaller than that of 15 caliber electric ball valve. The drive of the solenoid valve is through the solenoid coil, which is easy to be damaged by voltage shock. It is equivalent to the function of the switch, that is, opening and closing two functions.
The electric valve is usually driven by a motor, which is more resistant to voltage shock. The solenoid valve is fast opening and fast closing, generally used in small flow and small pressure, requiring a large switching frequency of the electric valve on the contrary. The opening of the electric valve can be controlled, and the state includes opening, closing, half opening and half closing. It can control the flow of medium in the pipeline, but the solenoid valve can not meet this requirement.
Generally, the solenoid valve can be reset after power failure, and the electric valve needs to be equipped with reset device for such function.
3. Applicable process:
Solenoid valve is suitable for some special process requirements, such as leakage, special fluid medium, etc., and its price is relatively expensive.
Electric valve is generally used for regulation, but also has switching value, such as: fan coil end.