Electric Actuator Valve Types

Electric actuators include electric motors and solenoid actuated valves.

Electric actuator valve types.

Typically a declutching mechanism and hand wheel are included so that the valve can be operated manually should a power failure occur. They are rotary and linear. Linear electric valve actuators are used with gate globe diaphragm pinch and angle valves that feature a sliding stem that opens or closes the valve. This power source can be electric pneumatic compressed air or hydraulic the flow of oil.

Electric motors can be used to open close and position a valve manually automatically or semi automatically. Position switches are utilized to indicate the open and closed position of the valve. The motor operates in both directions and drives the valve stem by means of gear couplings. Pneumatic actuators provide for automatic or semi automatic valve operation.

Figure 2 typical electric motor valve actuator. Linear electric valve actuators are well suited for operating in tight tolerances. There are two main types of actuators one for each of the two main types of valves that require them. More information on rotary and linear motion valves can be found on engineering360 s valve types page.