May I ask what diameter solenoid valves require a 220V power supply?
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May I ask what diameter solenoid valves require a 220V power supply? What is the power consumption of the solenoid valve?
Power supply has little to do with diameter. It depends on the specific operating conditions.
When the diameter is large and the pressure difference is high, it is not advisable to use a solenoid valve to drive the valve core; instead, use a solenoid valve to switch the air path in order to drive a cylinder, or use an electric valve
It also depends on the process medium. Generally, for sizes over 1 inch, 220VAC solenoid valves are commonly used