Electric Actuator Valve Types

More information on rotary and linear motion valves can be found on engineering360 s valve types page.

Electric actuator valve types.

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. To protect the valve the torque sensing mechanism of the actuator turns off the electric motor when a safe torque level is exceeded. This power source can be electric pneumatic compressed air or hydraulic the flow of oil.

Selection of the best actuator type for any application is dependent on many factors including. 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. Figure 2 typical electric motor valve actuator.

Electric actuators include electric motors and solenoid actuated valves. 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. Pneumatic actuators provide for automatic or semi automatic valve operation. There are two main types of actuators one for each of the two main types of valves that require them.