The difference between electric ball valve and electromagnetic ball valve

The electromagnetic ball valve is a magnetic attraction generated by the electromagnetic coil to overcome the pressure of the spring to drive the spool, and the electromagnetic coil has a simple structure and a low price, and can only realize the switch;
The electric ball valve drives the valve stem through the motor to drive the spool, and the electric ball valve is divided into (shutdown valve) and regulating valve. The shut-off valve is a two-position operation that is fully open and fully closed. The regulating valve is equipped with an electric valve positioner on the above, and the valve is dynamically stabilized in one position by closed loop adjustment.

The use of electric ball valves and solenoid valves:
Electromagnetic ball valves: Switching controls for liquid and gas lines are two DO controls. Generally used for the control of small pipes.
Electric Ball Valve: Analog adjustment for pipe media flow in liquid, gas and wind systems, is AI control. In the control of large valves and wind systems, electric valves can also be used for two-position switch control.
Electromagnetic ball valve: It can only be used as a switch quantity. It is DO control and can only be used for small pipe control. It is common in DN50 and below pipes, and it is rare.
Electric ball valve: It can have AI feedback signal, which can be controlled by DO or AO. It is more common in large pipes and dampers.
1. Switch form:
The electromagnetic ball valve is driven by the coil and can only be turned on or off. The switching time is short.
The drive of the electric valve is generally driven by a motor. It takes a certain amount of time to simulate the opening or closing action, and can be adjusted.
2. Nature of work:
Electromagnetic ball valves generally have a small flow coefficient and a small difference in working pressure. For example, a general 25-caliber electromagnetic ball valve has a smaller flow coefficient than a 15-caliber electric ball valve. The electromagnetic ball valve is driven by an electromagnetic coil and is relatively easily damaged by voltage shock. Equivalent to the role of the switch, is the role of opening and closing.
The electric ball valve is generally driven by a motor and is more resistant to voltage surges. The electromagnetic ball 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 ball valve can be controlled. The state is open, closed, half open and half closed, which can control the flow of medium in the pipeline and the electromagnetic ball valve can not meet this requirement.
The electromagnetic ball valve can be reset by general power failure, and the electric ball valve needs to add a reset device to such a function.
3. Applicable process:
Electromagnetic ball valves are suitable for some special process requirements, such as leakage, special fluid medium, etc., which are more expensive.
Electric ball valves are generally used for adjustment and also have a switching quantity, such as: fan coil end.