1, the nature of work: Hongfeng electric valve drive method is generally used motor, more resistant to voltage shock. Solenoid valves are quick-opening and fast-closing. They are generally used in small flow and small pressure, where the switching frequency is large, and the electric valve is reversed. The opening degree of the electric valve can be controlled, and the state is on, off, half-open and half-close, which can control the flow of medium in the pipeline and the solenoid valve can not meet this requirement.
Hongfeng solenoid valve generally has a small flow coefficient, and the working pressure difference is very small. For example, the general 25-gauge solenoid valve has a much smaller flow coefficient than the 15-bore electric ball valve. Solenoid valves are driven by solenoids and are easily damaged by voltage surges. The equivalent of the switch is to open and close 2 roles.
Shanghai Hongfeng solenoid valve can generally be reset when the power is off, and the electric valve needs such a function to add a reset device.
2, switch form:
The electric valve is usually driven by a motor. The opening or closing operation requires a certain amount of time for analog measurement and 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 the amount of switching, such as: fan coil end.
Solenoid valve is suitable for some special technical requirements, such as leakage, special fluid medium, etc., which is more expensive.
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