Actuation

Actuation refers to the process of converting energy into motion in various systems and devices. It’s a crucial component in a myriad of technologies, ranging from simple mechanisms to complex machinery.

Actuation is the mechanism of initiating and controlling movements in various systems, which could be mechanical, electrical, hydraulic, or pneumatic, among others. This concept is widely used in industries like robotics, automotive, aerospace, and manufacturing. It encompasses a wide range of components and techniques designed to convert various forms of energy into physical motion.

Valtorc’s series 390 flush bottom tank ball valve

Valtorc’s series 390 stainless steel flush bottom tank valve release features a number of port configurations, including standard, full port pipe and full port tube dimensions.

Staitech supplies 3-way ball valves

Staitech has recently fulfilled an order for a number of Vinco 3-way L-port valves with feedback switches and locking devices.

HRS electric actuator product line expanded

Hayward Flow Control has announced the release of the next phase of HRS Series Industrial Electric Actuators. This latest addition to its premier actuation product line includes three phase power and torque switch options.

Vane-shaft actuators for high cycle applications

Rack and pinion and scotch yoke type pneumatic actuators depend on gears to transfer torque and movement, while integral vane-shaft actuators have no gears (or linkages).

REXA electraulic actuators in copper mining

REXA has announced that its Electraulic™ Actuators have been chosen as the primary actuation technology to control flotation cell froth level at a mine located in Southwestern United States.

Puffer-Sweiven valve actuation products

Puffer-Sweiven provides isolation valves & valve actuation products, as well as repairs all makes and models of actuation.

AR Controls’ valves for demanding applications

AR Controls has successfully supplied and maintained large installed bases of DeZurik KSV severe-service knife gate valves on the Zambian Copper Belt in demanding tailings applications.

Rotork introduces the IQT3000 part-turn valve actuator

Rotork has increased the performance and versatility of its well-established IQT range of robust and reliable non-intrusive intelligent electric valve actuators.

Bürkert’s motor-driven disc valves

Bürkert offers several motor-driven disc valves in its process and control valves range. Bürkert‘s disc valves include type 3275 2/2 way motor valve, in the shut-off range, and the type 3285 2/2 way proportional valve (also motor-driven).

Valve World Americas Conference and Expo 2017

The Valve World Americas Conference & Expo 2017 will be held at George R. Brown Convention Center in Houston, Texas on June 20th and 21st, 2017.

Actuation

The primary devices that carry out actuation are called actuators. These can be categorized as:

  1. Mechanical Actuators: Convert rotary motion to linear motion or vice versa, often using gears, rails, or screws.
  2. Electric Actuators: Utilize electric motors to generate motion, controlled by varying voltage, current, or electromagnetic fields.
  3. Hydraulic Actuators: Use the pressure of a liquid (usually oil) to induce motion, often to generate high forces in heavy machinery.
  4. Pneumatic Actuators: Operate using compressed air or gas to create motion, often found in industrial automation setups.
  5. Thermal or Magnetic Actuators: Leverage thermal expansion or magnetic fields to generate motion, usually in micro or nano-scale applications.

2. Control Systems

These systems are essential in regulating the functioning of actuators, often utilizing feedback loops to maintain precision and efficiency. They may include:

  1. Manual Controls: Simple interfaces like levers or switches to control actuators.
  2. Automatic Controls: Utilize sensors and microcontrollers to automatically control the actuation process.
  3. Software Interfaces: Complex control setups involving software platforms integrated with hardware components to enable sophisticated control strategies.

3. Power Sources

Different actuation systems require different power sources, which could range from electrical batteries, hydraulic pumps, or pneumatic compressors.

Applications

Actuation finds its application in various fields:

  1. Robotics: In the control of robotic arms, legs, or other appendages.
  2. Aerospace: Utilized in the functioning of various components like flaps, landing gear, and engines.
  3. Automotive: In control systems like power steering, braking systems, and throttle control.
  4. Industrial Machinery: In machines used for manufacturing, packaging, and other industrial processes.
  5. Healthcare: In devices like prosthetics and other healthcare equipment.
  6. Consumer Electronics: In gadgets and appliances, for functions like zooming in cameras or adjusting settings.

Future Trends

With advancements in technology, actuation systems are expected to become more sophisticated, incorporating features like:

  1. Internet of Things (IoT): Integration with IoT for smarter and more connected control systems.
  2. Artificial Intelligence (AI): Incorporating AI for predictive maintenance and automated control strategies.
  3. Miniaturization: Development of smaller and more compact actuators for use in micro and nano-scale applications.

Conclusion

Actuation is a dynamic and evolving field, playing a critical role in modern technology and industry. It encompasses a wide range of components, systems, and techniques that convert energy into physical motion, finding applications in a variety of sectors and continually evolving to incorporate new advancements and innovations.