1. The
solenoid valve has excellent anti-leakage performance, opens and closes quickly, and has low power. It is suitable for use as a cut-off in some chemical pipelines such as corrosion and toxicity; electric valves are mostly used for pipeline flow regulation, and are normally installed in air supply and refrigeration. The air outlet of the pipeline can also be used in liquid pipelines, and is widely used in canned pipelines and sewage treatment pipelines for beverage production.
2. The solenoid valve is used for the switch control of liquid and gas pipelines, and it is controlled by two DOs. Generally used for the control of small pipelines. The electric valve is used for analog regulation of medium flow in liquid, gas and wind system pipelines, and is controlled by AI. In the control of large valves and wind systems, electric valves can also be used for two-position switch control.
3. The solenoid valve can only be used as a switch value, it is DO control, and can only be used for small pipeline control. It is common in DN50 and below pipelines, and there are very few upwards; the electric valve can have AI feedback signal, which can be controlled by DO or AO Control, more seen in large pipes and dampers.
4. The solenoid valve is driven by a coil, which can only be opened or closed, and the action time is short when switching; the electric valve is generally driven by a motor, and it takes a certain amount of time to open or close the action, and it can be adjusted.
5. The solenoid valve generally has a small flow coefficient and a small working pressure difference. For example, the flow coefficient of the general 25-caliber solenoid valve is much smaller than that of the 15-caliber electric ball valve. The driving of the solenoid valve is through the solenoid coil, which is relatively easy to be damaged by voltage shock. It is equivalent to the role of a switch, that is, on and off.
6. The electric valve is generally driven by a motor, which is more resistant to voltage shocks. The solenoid valve is quick-opening and quick-closing, and is generally used in small flow and small pressure, where the switching frequency is required to be large. The opening of the electric valve can be controlled, and the state is open, closed, half-open and half-closed, which can control the flow of the medium in the pipeline, but the solenoid valve cannot meet this requirement.
7. The
solenoid valve is suitable for a special process requirement, such as leakage, special fluid medium, etc. The more expensive electric valve is generally used for adjustment, and there are also switch values, such as: the end of the fan coil unit.
