The difference between solenoid valve and electric valve:
1, the nature of the work: The drive of the electric valve is generally a motor, more resistant to voltage shocks. The solenoid valve is fast open and fast closed. It is generally used in small flow and small pressure, and the electric switch is required in the place where the switching frequency is large. The opening of the electric valve can be controlled. The state has open, closed, half open and half closed, which can control the flow of the medium in the pipeline and the solenoid valve can not meet this requirement. Solenoid valves generally have a small flow coefficient and a small difference in working pressure. For example, a general 25-caliber solenoid valve has a smaller flow coefficient than a 15-caliber electric ball valve. The drive of the Shanghai solenoid valve is through the electromagnetic coil, which is relatively easy to be damaged by voltage shock. Equivalent to the role of the switch, is the role of opening and closing. Solenoid valves can be reset by general power failure. For such functions, electric valves require a reset device.
2, switch form: The drive of the electric valve is generally the use of the motor, the opening or closing action requires a certain amount of time analog, can be adjusted. The solenoid valve is driven by the coil and can only be turned on or off. The switching time is short.
3, applicable process: Electric valve is generally used for adjustment, but also has a switch quantity, such as: fan coil end. Suitable for some special process requirements, such as leakage, special fluid medium, etc., the price is more expensive.
