Use comparison of electric and solenoid valves
Solenoid valve : for liquid and gas pipeline switch control, is two DO control. Generally used for small pipe control. Electric valve: for liquid, gas and wind system pipe medium flow analog regulation, is AI control. In the control of large valve and wind system can also use electric valve to do two switch control. Solenoid valve: can only be used as switching quantity, is DO control, can only be used for small pipe control, common in DN50 and below pipe. Electric valve: can have AI feedback signal, can be controlled by DO or AO, more commonly seen in large pipelines and wind valves.