Difference between solenoid valve and electric valve

1. Switch type:

The solenoid valve can only be driven on or off for a short time.

The drive of electric valve is generally completed by motor. The opening or closing action requires a certain amount of time and analog quantity, which can be adjusted.

2. Nature of work:

Generally, the 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 solenoid valve is driven through the solenoid coil, which is easy to be damaged by voltage shock. It is equivalent to the function of switch, which is on and off.

Electric valve is generally driven by motor, which is more resistant to voltage shock. Solenoid valves are quick to open and close. They are generally used in places with small flow and pressure and high switching frequency. On the contrary, electric valves are used in places with large switching frequency. The opening of the electric valve can be controlled, and the states are on, off, half on and half off, which can control the flow of medium in the pipeline, while the solenoid valve can not meet this requirement.

Generally, the solenoid valve can be reset after power failure, and the electric valve needs a reset device for such a function.

3. Applicable process:

Solenoid valve is suitable for some special process requirements, such as leakage, special fluid medium, etc., and the price is expensive.

Electric valves are generally used for regulation, and there are also switching values, such as the end of fan coil.