Difference between solenoid valve and electric valve
1. Switch Type:
Through the coil drive solenoid valve can only open or off, acting time is short when switching.
Electric valve drive generally uses motor, open or off action will take some time to complete analog, and can adjust.
2. working character
Solenoid valve flow coefficient generally is very small, and the working pressure differential is very small. For example, generally 25 diameter solenoid valve flow coefficient is much smaller than the 15 diameter electric valve. Solenoid valve driven by electromagnetic coils, e more asily damaged by voltage surge. The equivalent of switching function, that is open and closed functions.
Electric valve drive generally uses motor, is voltage surge resistant. Solenoid valve is fast-open and fast off, usually used in small flow and small pressure. Requiring large switching frequency electric valve is on the contrary. Electric valve opening degree can be controlled, the state has open, closed, half-open half-closed, you can control the pipeline media flow while solenoid valves fail this requirement.
Generally power off solenoid valve can be reset, electric valve need to add reset device if want to have this function.
3.Applicable process:
Solenoid valve is suitable to some special process requirements, such as leakage, fluid medium special and so on, the price is more expensive.
Electric valves are generally used for conditioning, but also with switch amount, such as: fan coil terminal.
