Electric Actuator Valve Types

Pneumatic actuators provide for automatic or semi automatic valve operation.

Electric actuator valve types.

This power source can be electric pneumatic compressed air or hydraulic the flow of oil. More information on rotary and linear motion valves can be found on engineering360 s valve types page. They work by translating an instrument air signal into valve stem motion by air pressure acting on a diaphragm or piston connected to the stem. Selection of the best actuator type for any application is dependent on many factors including.

The motor operates in both directions and drives the valve stem by means of gear couplings. They are rotary and linear. Typically a declutching mechanism and hand wheel are included so that the valve can be operated manually should a power failure occur. Figure 2 typical electric motor valve actuator.

Position switches are utilized to indicate the open and closed position of the valve. Electric actuators include electric motors and solenoid actuated valves. Linear electric valve actuators are well suited for operating in tight tolerances. 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.