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  • How to select an Actuator (part. 3): Electric Actuator
    Electric rotary actuators are basically geared motors with a variety of electrical accessories (limit switches, heater, circuit boards) that may be specified to meet the exact valve automation requirements of a process control system. As an electrical device it is housed in an enclosure designed
  • Electric Actuators for Dummies
    An Actuator is a mechanical device that converts energy, here electricity, into motion. It can be a linear motion (one direction) or a rotary motion (circular motion).
  • How Electric Rotary Valve Actuators Can Optimize Ethanol/Gasoline Blending at Truck Terminals
    The ethanol blending process is a critical part of a gasoline terminal operation and has a significant impact on product quality, meeting environmental regulations and profitability. Optimizing the process is very important, but does present some control challenges. For example, thermal expansion of
  • Application Note: Sensors and Switches Used in Valve Actuators and Valve Positioners (.pdf)
    A valve actuator is a pneumatic or electric mechanism used in process control systems to automatically open or close valves. Potential Applications: Valve actuators can be used with either linear or rotary valves in industrial, medical, food and beverage, and transportation applications.
  • 12 Volt Actuator Increases Solar Panel Efficiency 200%!
    Discusses the increase in efficiency that can be seen by allowing a solar panel to track the motion of the sun through the sky with a 12 volt electric rotary actuator. This article also gives a brief how-to for those do it yourselfers out there who use solar panels for their homes.
  • Bettis Downloads
    Bettis manufacturers the broadest variety of valve actuator types in the world. Our offering includes pneumatic, hydraulic, electric and gas/hydraulic powered quarter-turn actuators. We also manufacture linear actuators for multi-turn valves. Our products operate in numerous configurations
  • Pneumatic or servo?
    , but also their speed and acceleration while they travel to their final destination. There are many actuator types to consider when replacing a pneumatic system with a servocontrolled system. Actuator types available include electric cylinders with ball screws, rodless actuators with belts
  • Straighten up and go linear
    -motion-control application faced three imperfect options: traditional electric motors or hydraulic or pneumatic cylinders. Hydraulic actuators have many inherent problems, such as high cost, leakage, and inefficiency. Pneumatics are less expensive but require a fair amount of maintenance, and have

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