{"id":11872,"date":"2026-10-21T03:25:09","date_gmt":"2026-10-21T03:25:09","guid":{"rendered":"https:\/\/www.fleyendavalve.com\/?p=11872"},"modified":"2026-10-21T03:26:56","modified_gmt":"2026-10-21T03:26:56","slug":"valve-actuator-types-explained-key-differences-and-applications","status":"publish","type":"post","link":"https:\/\/www.fleyendavalve.com\/ar\/valve-actuator-types-explained-key-differences-and-applications\/","title":{"rendered":"Valve Actuator Types Explained: Key Differences and Applications"},"content":{"rendered":"
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Industrial Actuator Guide<\/span><\/p>\n

Actuator Types: Electric, Pneumatic, Rotary, Linear & More<\/h1>\n

Actuator types can be classified in several different ways, including by power source, output motion, control method and failure mode. In industrial automation, the most common categories include electric actuators, pneumatic actuators, rotary actuators, linear actuators and multi-turn actuators. Understanding how these classifications overlap is essential when selecting an actuator for valves, dampers and automated equipment.<\/p>\n

For industrial valve applications, actuator selection should begin with the required motion and mechanical load, then consider available power or compressed air, operating speed, duty cycle, control signal, environmental protection and the required position during a power or air failure.<\/p>\n

Quick Answer:<\/strong> The main actuator types used in industrial automation are electric, pneumatic and hydraulic actuators when classified by power source, and rotary, linear and multi-turn actuators when classified by movement. A single actuator can belong to more than one category\u2014for example, an electric quarter-turn rotary actuator or a pneumatic linear actuator.<\/div>\n
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Understanding the Basics<\/span><\/p>\n

What Is an Actuator?<\/h2>\n

An actuator is a device that converts energy into mechanical movement. The energy source may be electricity, compressed air, hydraulic pressure or another form of stored energy, while the resulting movement can be rotational or linear.<\/p>\n

In industrial systems, actuators are used whenever equipment needs to move automatically rather than by direct manual operation. Typical examples include operating valves, positioning dampers, moving gates, controlling machine components and adjusting process equipment.<\/p>\n

In valve automation, the actuator provides the torque or thrust required to move the valve closure element. Ball valves and butterfly valves normally require rotational torque, while many globe valves, knife gate valves and other linear-stem valves require axial thrust.<\/p>\n<\/div>\n<\/section>\n

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Overview<\/span><\/p>\n

Main Actuator Types at a Glance<\/h2>\n

The term actuator types can be confusing because actuators can be classified in more than one way. Electric and pneumatic describe the energy source, while rotary and linear describe the output movement.<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u0646\u0648\u0639 \u0627\u0644\u0645\u0634\u063a\u0644<\/th>\nClassification<\/th>\nOutput<\/th>\nTypical Industrial Use<\/th>\n<\/tr>\n<\/thead>\n
\u0645\u0634\u063a\u0644 \u0643\u0647\u0631\u0628\u0627\u0626\u064a<\/strong><\/td>\nPower source<\/td>\nRotary or linear movement<\/td>\nRemote valve automation, industrial equipment, water systems<\/td>\n<\/tr>\n
\u0645\u0634\u063a\u0644 \u0647\u0648\u0627\u0626\u064a<\/strong><\/td>\nPower source<\/td>\nRotary or linear movement<\/td>\nProcess plants, frequent cycling, automated valves<\/td>\n<\/tr>\n
Hydraulic Actuator<\/strong><\/td>\nPower source<\/td>\nRotary or linear movement<\/td>\nVery high-force or high-torque heavy-duty applications<\/td>\n<\/tr>\n
Rotary Actuator<\/strong><\/td>\nMotion type<\/td>\nAngular rotation<\/td>\nBall valves, butterfly valves, dampers<\/td>\n<\/tr>\n
Linear Actuator<\/strong><\/td>\nMotion type<\/td>\nStraight-line movement<\/td>\nGlobe valves, knife gate valves, positioning systems<\/td>\n<\/tr>\n
Multi-Turn Actuator<\/strong><\/td>\nMotion type<\/td>\nMultiple shaft rotations<\/td>\nGate valves, globe valves and other multi-turn equipment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Key Point:<\/strong> These categories are not mutually exclusive. A quarter-turn actuator may be electric or pneumatic, while a linear actuator may also use electric or pneumatic power.<\/div>\n<\/div>\n<\/section>\n
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Power Source<\/span><\/p>\n

Actuator Types by Power Source<\/h2>\n

One of the most common ways to classify actuators is according to the energy source used to create mechanical movement.<\/p>\n

Electric Actuators<\/h3>\n

Electric actuators use an electric motor to generate movement. A gearbox or drive mechanism converts motor speed into the torque, thrust and travel required by the connected equipment.<\/p>\n

Industrial electric actuators are available in quarter-turn, multi-turn and linear configurations. Depending on the design, they can provide ON\/OFF operation, modulating control, position feedback, manual override and communication with PLC, DCS or SCADA systems.<\/p>\n

Electric actuation is particularly practical when electrical power is readily available but a compressed-air system is not. It is commonly used in water treatment plants, remote pipeline installations, industrial equipment and automated process systems.<\/p>\n

Pneumatic Actuators<\/h3>\n

Pneumatic actuators use compressed air to generate movement. Air pressure acts on pistons, diaphragms or other mechanisms to create rotary torque or linear thrust.<\/p>\n

Quarter-turn pneumatic actuators are commonly paired with ball valves and butterfly valves, while pneumatic cylinders and diaphragm actuators are widely used for linear valve movement.<\/p>\n

Pneumatic actuator systems are especially common in process plants with an existing instrument-air network and in applications requiring fast movement, frequent cycling or mechanical spring-return fail-safe operation.<\/p>\n

Hydraulic Actuators<\/h3>\n

Hydraulic actuators use pressurized fluid to produce mechanical movement. They can generate very high force or torque relative to their size and are therefore used in heavy-duty machinery, large pipeline systems and specialized industrial applications.<\/p>\n

Because most Fleyenda valve automation applications focus on electric and pneumatic actuation, this guide concentrates primarily on those technologies rather than hydraulic systems.<\/p>\n<\/div>\n<\/section>\n

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Motion Classification<\/span><\/p>\n

Actuator Types by Movement<\/h2>\n

Another important classification is the way the actuator moves its output shaft or stem. The three most important industrial motion categories are rotary, linear and multi-turn.<\/p>\n

Rotary Actuator<\/h3>\n

A rotary actuator produces angular movement and rotational torque. Quarter-turn rotary actuators typically rotate approximately 90 degrees and are widely used on ball valves, butterfly valves, plug valves and dampers.<\/p>\n

Rotary actuators can be electric, pneumatic or hydraulic. The correct type depends on torque, speed, available utilities and automation requirements.<\/p>\n

Linear Actuator<\/h3>\n

A linear actuator produces movement in a straight line. Its primary mechanical output is normally expressed as thrust rather than torque.<\/p>\n

Linear actuators are used where equipment must push, pull, lift or position something along a straight path. In valve automation, they are commonly associated with globe valves, diaphragm valves, knife gate valves and other linear-stem designs.<\/p>\n

Multi-Turn Actuator<\/h3>\n

A multi-turn actuator rotates its output shaft through multiple complete revolutions. This movement is commonly used to operate gate valves and other valves where several stem rotations are required to complete the full travel.<\/p>\n

Some multi-turn valves convert rotational actuator movement into linear movement through a threaded stem and nut arrangement.<\/p>\n<\/div>\n<\/section>\n

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Motion Comparison<\/span><\/p>\n

Quarter-Turn vs Multi-Turn vs Linear Actuators<\/h2>\n\n\n\n\n\n\n\n\n\n
\u0645\u0642\u0627\u0644 \u0645\u0645\u064a\u0632<\/th>\nQuarter-Turn<\/th>\nMulti-Turn<\/th>\n\u062e\u0637\u064a<\/th>\n<\/tr>\n<\/thead>\n
Movement<\/strong><\/td>\nUsually approximately 90\u00b0<\/td>\nMultiple full rotations<\/td>\nStraight-line stroke<\/td>\n<\/tr>\n
Main Output<\/strong><\/td>\nTorque<\/td>\nTorque<\/td>\nThrust<\/td>\n<\/tr>\n
Typical Valves<\/strong><\/td>\nBall, butterfly and plug valves<\/td>\nGate and selected globe valves<\/td>\nGlobe, diaphragm and knife gate valves<\/td>\n<\/tr>\n
Typical Power Source<\/strong><\/td>\nElectric, pneumatic or hydraulic<\/td>\nPrimarily electric or hydraulic<\/td>\nElectric, pneumatic or hydraulic<\/td>\n<\/tr>\n
Key Sizing Parameter<\/strong><\/td>\nRequired torque<\/td>\nTorque, turns and operating time<\/td>\nRequired thrust and stroke<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The required valve movement should normally be identified before choosing the actuator power source. Selecting the wrong motion type can make an otherwise correctly sized actuator unsuitable for the valve.<\/p>\n<\/div>\n<\/section>\n

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Electric Automation<\/span><\/p>\n

Common Electric Actuator Types<\/h2>\n

Electric actuators can be further classified according to their movement and control capabilities.<\/p>\n

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01<\/p>\n

Quarter-Turn Electric Actuator<\/h3>\n

Produces approximately 90\u00b0 rotary movement for ball valves, butterfly valves, plug valves and dampers.<\/p>\n<\/div>\n

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02<\/p>\n

Multi-Turn Electric Actuator<\/h3>\n

Produces multiple output-shaft rotations for gate valves and other equipment requiring extended rotational travel.<\/p>\n<\/div>\n

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03<\/p>\n

Linear Electric Actuator<\/h3>\n

Converts motor rotation into straight-line movement for valves and industrial positioning applications.<\/p>\n<\/div>\n

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04<\/p>\n

ON\/OFF Electric Actuator<\/h3>\n

Moves equipment between defined end positions such as fully open and fully closed.<\/p>\n<\/div>\n

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05<\/p>\n

Modulating Electric Actuator<\/h3>\n

Positions the output between end positions according to signals such as 4\u201320 mA or 0\u201310 V.<\/p>\n<\/div>\n

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06<\/p>\n

Intelligent Electric Actuator<\/h3>\n

Adds electronic monitoring, diagnostics, position control and, on selected models, industrial communication functions.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Pneumatic Automation<\/span><\/p>\n

Common Pneumatic Actuator Types<\/h2>\n

Pneumatic actuators are commonly classified according to their mechanical design and failure behavior.<\/p>\n

Double-Acting Pneumatic Actuator<\/h3>\n

A double-acting actuator uses compressed air to create movement in both directions. It is widely used for general industrial valve automation when mechanical spring-return action is not required.<\/p>\n

Single-Acting Spring-Return Actuator<\/h3>\n

A spring-return pneumatic actuator uses compressed air for movement in one direction and stored spring force in the opposite direction. Depending on assembly and process requirements, it can be configured for fail-open or fail-close operation.<\/p>\n

Rack-and-Pinion Actuator<\/h3>\n

A rack-and-pinion actuator uses pistons and gear racks to rotate a central pinion. It is compact and widely used for quarter-turn ball valve and butterfly valve automation.<\/p>\n

Scotch-Yoke Actuator<\/h3>\n

A Scotch-yoke actuator converts linear piston movement into angular rotation through a yoke mechanism. This design can provide a torque profile suitable for larger valves and high-torque quarter-turn applications.<\/p>\n

Important:<\/strong> Double acting versus spring return describes how the actuator operates, while rack-and-pinion versus Scotch yoke describes its mechanical construction. These are two different classification systems.<\/div>\n<\/div>\n<\/section>\n
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Valve Compatibility<\/span><\/p>\n

Which Actuator Type Is Used for Each Valve?<\/h2>\n

The valve design determines the required motion first. The power source can then be selected according to site utilities, speed, failure behavior and control requirements.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
\u0646\u0648\u0639 \u0627\u0644\u0635\u0645\u0627\u0645<\/th>\nRequired Motion<\/th>\nCommon Actuator Types<\/th>\nMain Selection Factor<\/th>\n<\/tr>\n<\/thead>\n
Ball Valve<\/strong><\/td>\n\u0635\u0645\u0627\u0645 \u062f\u0648\u0627\u0631 \u0631\u0628\u0639 \u062f\u0648\u0631\u0629<\/td>\nElectric or pneumatic<\/td>\nBreakaway torque, speed, fail position<\/td>\n<\/tr>\n
\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong><\/td>\n\u0635\u0645\u0627\u0645 \u062f\u0648\u0627\u0631 \u0631\u0628\u0639 \u062f\u0648\u0631\u0629<\/td>\nElectric or pneumatic<\/td>\nValve torque, size, pressure, operating speed<\/td>\n<\/tr>\n
Plug Valve<\/strong><\/td>\n\u0635\u0645\u0627\u0645 \u062f\u0648\u0627\u0631 \u0631\u0628\u0639 \u062f\u0648\u0631\u0629<\/td>\nElectric or pneumatic<\/td>\nHigh breakaway torque may need consideration<\/td>\n<\/tr>\n
\u0635\u0645\u0627\u0645 \u0628\u0648\u0627\u0628\u0629<\/strong><\/td>\nMulti-turn<\/td>\nMulti-turn electric actuator<\/td>\nTorque, stem travel and required number of turns<\/td>\n<\/tr>\n
\u0635\u0645\u0627\u0645 \u0643\u0631\u0648\u064a<\/strong><\/td>\nLinear or multi-turn<\/td>\nPneumatic linear or electric actuator<\/td>\nThrust, stroke and control accuracy<\/td>\n<\/tr>\n
\u0635\u0645\u0627\u0645 \u0628\u0648\u0627\u0628\u0629 \u0627\u0644\u0633\u0643\u064a\u0646<\/strong><\/td>\n\u062e\u0637\u064a<\/td>\nPneumatic cylinder or electric drive<\/td>\nStroke, thrust, solids load and speed<\/td>\n<\/tr>\n
\u0635\u0645\u0627\u0645 \u0627\u0644\u062a\u062d\u0643\u0645<\/strong><\/td>\nDepends on valve design<\/td>\nElectric or pneumatic modulating actuator<\/td>\nPositioning accuracy and process dynamics<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Control Method<\/span><\/p>\n

Actuator Types by Control Mode<\/h2>\n

ON\/OFF Actuator<\/h3>\n

An ON\/OFF actuator moves equipment between two primary positions. In a valve application, these are normally fully open and fully closed. This is the simplest type of automated valve control.<\/p>\n

Modulating Actuator<\/h3>\n

A modulating actuator moves to intermediate positions according to a control signal. Electric actuators may use internal electronic control modules, while pneumatic actuators generally use a valve positioner.<\/p>\n

Common industrial analog control signals include 4\u201320 mA and 0\u201310 V.<\/p>\n

Intelligent Actuator<\/h3>\n

Intelligent actuators add functions such as electronic position monitoring, diagnostics, configurable operating parameters and digital communication. Available features vary significantly between actuator models.<\/p>\n

Control Note:<\/strong> A modulating actuator alone does not guarantee accurate process control. The connected valve must also have suitable flow characteristics for the required application.<\/div>\n<\/div>\n<\/section>\n
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\"\u0635\u0645\u0627\u0645<\/p>\n

Failure Strategy<\/span><\/p>\n

Fail-Open, Fail-Close and Fail-in-Place Actuators<\/h2>\n

Actuator failure behavior describes what should happen when electrical power, pneumatic pressure or another energy source is lost.<\/p>\n

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Fail Close<\/h3>\n

The actuator system moves the valve toward the closed position after loss of the primary energy source. This may be required for fuel, chemical feed or other applications where continued flow creates a process risk.<\/p>\n<\/div>\n

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Fail Open<\/h3>\n

The valve moves toward the open position after failure. Cooling-water, venting and other safety functions may require this philosophy depending on the process.<\/p>\n<\/div>\n

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Fail in Place<\/h3>\n

The actuator remains approximately in its last position when energy is lost. This can be appropriate where maintaining the existing process condition is safer than automatically opening or closing the valve.<\/p>\n<\/div>\n<\/div>\n

Spring-return pneumatic actuators provide a common mechanical method of achieving fail-open or fail-close behavior. Electric actuators require a suitable stored-energy, spring, capacitor, battery or backup-power design if automatic repositioning is required during power loss.<\/p>\n<\/div>\n<\/section>\n

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Mechanical Output<\/span><\/p>\n

Torque vs Thrust: The Most Important Sizing Difference<\/h2>\n

Actuator sizing should begin with the mechanical output required by the equipment.<\/p>\n

Rotary actuators are normally sized according to torque. Linear actuators are primarily selected according to thrust and stroke. Multi-turn actuators also require evaluation of torque, operating turns and travel time.<\/p>\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0645\u0639\u0644\u0645\u0629<\/th>\nUsed For<\/th>\nWhat It Represents<\/th>\n<\/tr>\n<\/thead>\n
Torque<\/strong><\/td>\nRotary and multi-turn actuators<\/td>\nRotational force available to turn a shaft<\/td>\n<\/tr>\n
Thrust<\/strong><\/td>\nLinear actuators<\/td>\nPush or pull force along a straight axis<\/td>\n<\/tr>\n
Stroke<\/strong><\/td>\nLinear actuators<\/td>\nTotal linear movement required<\/td>\n<\/tr>\n
\u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/strong><\/td>\nQuarter-turn actuators<\/td>\nTotal angular travel, commonly around 90\u00b0<\/td>\n<\/tr>\n
Number of Turns<\/strong><\/td>\nMulti-turn actuators<\/td>\nTotal shaft rotations required to complete travel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

For valves, actual breakaway torque, running torque, seating torque, stem friction and differential pressure should be considered rather than selecting an actuator only according to nominal valve diameter.<\/p>\n<\/div>\n<\/section>\n

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\u062f\u0644\u064a\u0644 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631<\/span><\/p>\n

How to Choose Between Different Actuator Types<\/h2>\n

A reliable actuator selection process starts with the equipment and process requirements rather than with a specific actuator model.<\/p>\n

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01<\/p>\n

Identify the Required Motion<\/h3>\n

Determine whether the application requires quarter-turn rotary movement, multiple shaft rotations or linear movement.<\/p>\n<\/div>\n

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02<\/p>\n

Calculate Torque or Thrust<\/h3>\n

Use actual equipment load data and evaluate the most demanding expected operating condition.<\/p>\n<\/div>\n

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03<\/p>\n

Check Available Utilities<\/h3>\n

Determine whether electrical power, compressed air or another energy source is readily available at the installation point.<\/p>\n<\/div>\n

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04<\/p>\n

Define Operating Speed<\/h3>\n

Specify how quickly the actuator should complete its travel without creating unwanted process effects.<\/p>\n<\/div>\n

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05<\/p>\n

Confirm Operating Frequency<\/h3>\n

Determine whether the actuator will operate occasionally, cycle frequently or continuously modulate during production.<\/p>\n<\/div>\n

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06<\/p>\n

Define the Failure Position<\/h3>\n

Specify whether the equipment should fail open, fail closed or remain in its last position.<\/p>\n<\/div>\n

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07<\/p>\n

Select the Control Mode<\/h3>\n

Choose simple ON\/OFF operation, analog modulating control or intelligent digital control according to the automation system.<\/p>\n<\/div>\n

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08<\/p>\n

Check Environmental Conditions<\/h3>\n

Consider rain, washdown, dust, corrosion, ambient temperature and hazardous-area requirements.<\/p>\n<\/div>\n

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09<\/p>\n

Confirm the Mounting Interface<\/h3>\n

Check shaft dimensions, mounting flange, coupling and applicable actuator-interface standards.<\/p>\n<\/div>\n

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10<\/p>\n

Compare Lifecycle Requirements<\/h3>\n

Evaluate installation infrastructure, maintenance capability, energy supply and spare-part requirements rather than purchase price alone.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Decision Factors<\/span><\/p>\n

Electric vs Pneumatic Actuators: Which Type Should You Choose?<\/h2>\n

Electric and pneumatic actuators are both widely used in industrial automation, but their advantages depend heavily on the installation.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Factor<\/th>\n\u0645\u0634\u063a\u0644 \u0643\u0647\u0631\u0628\u0627\u0626\u064a<\/th>\n\u0645\u0634\u063a\u0644 \u0647\u0648\u0627\u0626\u064a<\/th>\n<\/tr>\n<\/thead>\n
Energy Source<\/strong><\/td>\n\u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629<\/td>\nCompressed air<\/td>\n<\/tr>\n
Installation<\/strong><\/td>\nPower and signal wiring<\/td>\nAir tubing plus pneumatic accessories<\/td>\n<\/tr>\n
Fast Cycling<\/strong><\/td>\nDepends heavily on model and duty rating<\/td>\nOften well suited when the air system is correctly sized<\/td>\n<\/tr>\n
Spring Fail-Safe<\/strong><\/td>\nRequires suitable fail-safe actuator design<\/td>\nSpring-return designs are widely available<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u062a\u0639\u062f\u064a\u0644\u064a<\/strong><\/td>\nElectronic control module<\/td>\nPneumatic or electro-pneumatic positioner<\/td>\n<\/tr>\n
Remote Locations<\/strong><\/td>\nPractical where electrical power is available<\/td>\nRequires reliable compressed-air distribution<\/td>\n<\/tr>\n
Maintenance Focus<\/strong><\/td>\nElectrical components, motor and gearbox<\/td>\nAir quality, seals, tubing and control accessories<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Neither actuator type is universally better. A facility with an established instrument-air network may benefit from pneumatic actuation, while a remote installation with electrical power but no compressed-air infrastructure may favor electric actuation.<\/p>\n<\/div>\n<\/section>\n

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Operating Environment<\/span><\/p>\n

IP Ratings, Outdoor Service and Explosion-Proof Actuators<\/h2>\n

The actuator type must also match the environment in which it operates. Outdoor valves, washdown areas, chemical plants and hazardous locations place different demands on actuator housings and electrical equipment.<\/p>\n

IP67 and IP68<\/h3>\n

Ingress protection ratings describe resistance to dust and water under defined test conditions. The required level should be selected according to the actual installation rather than simply choosing the highest available rating.<\/p>\n

Explosion-Protected Actuators<\/h3>\n

Hazardous-area installations may require specially certified electrical equipment. This includes electric actuators as well as electrical accessories installed on pneumatic actuator packages, such as solenoid valves, limit switch boxes and positioners.<\/p>\n

Corrosive Environments<\/h3>\n

Housing material, protective coating, fasteners, cable entries and accessories should also be evaluated where the actuator is exposed to salt, chemicals or corrosive industrial atmospheres.<\/p>\n<\/div>\n<\/section>\n

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Common Mistakes<\/span><\/p>\n

Common Actuator Selection Mistakes<\/h2>\n
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Choosing by Valve Size Alone<\/h3>\n

Two valves with the same nominal diameter can require very different actuator torque because of seat design, pressure and valve construction.<\/p>\n<\/div>\n

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Confusing Power Type with Motion Type<\/h3>\n

Electric and pneumatic describe how the actuator is powered, while rotary and linear describe how it moves.<\/p>\n<\/div>\n

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Ignoring Minimum Air Pressure<\/h3>\n

Pneumatic actuator output should be checked at the minimum reliable pressure available at the actuator location.<\/p>\n<\/div>\n

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Ignoring Electric Duty Cycle<\/h3>\n

An electric actuator selected for occasional isolation may not be suitable for continuous or frequent modulating service.<\/p>\n<\/div>\n

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Using One Fixed Torque Safety Factor<\/h3>\n

The appropriate actuator margin depends on actual valve torque, pressure, medium, deposits, temperature and service conditions.<\/p>\n<\/div>\n

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Forgetting the Failure Position<\/h3>\n

Fail-open, fail-close or fail-in-place requirements should be defined before the actuator package is selected.<\/p>\n<\/div>\n

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Selecting the Fastest Actuator<\/h3>\n

Fast operation can be useful, but excessive closing speed can create pressure surge or other process problems.<\/p>\n<\/div>\n

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Ignoring Accessories<\/h3>\n

Solenoid valves, positioners, limit switches, regulators and control modules can be essential parts of the complete automation package.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Fleyenda Actuator Solutions<\/span><\/p>\n

Industrial Actuator Types Available from Fleyenda<\/h2>\n

Fleyenda focuses on electric and pneumatic actuator solutions for industrial valve automation, including quarter-turn, multi-turn, ON\/OFF, modulating, intelligent and high-torque actuator configurations.<\/p>\n

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Electric \u00b7 Quarter-Turn<\/span><\/p>\n

FLE Series Electric Actuator<\/h3>\n

A compact quarter-turn electric actuator series for compatible ball valves, butterfly valves and dampers.<\/p>\n