The structure of the electromagnetic valve and the electric valve

Solenoid valve is electromagnetic coil after electrify producing magnetic attraction overcomes the spring pressure drives the valve core movement; Is electric valve driven by motor to drive the stem, valve core movement, the electric valve shutoff valve and control valve. The difference between electric valve and solenoid valve, electromagnetic valve is electromagnetic coil after electrify producing magnetic attraction overcomes the spring pressure drives the valve core movement, is an electromagnetic coil, structure is simple, cheap, can only achieve switch; Is the electric valve driven by motor to drive the stem, valve core movement, the electric valve and points ( Shut off valve) And the regulator. Shutoff valves are two type of work that is fully open and close, regulating valve is installed on the electric valve positioner, through closed-loop regulating dynamic stability in a position to make the valve solenoid valve and the electric valve structure difference