Actuators

An actuator is a mechanical device for moving or controlling a mechanism or system. It takes energy, usually transported by air, electric current, or liquid, and converts that into some kind of motion.
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Equipment
The IGVA features JASC's direct acting 3-way clevis type, servo valve, used for actuation, as well as an LVDT to provide position feedback. The actuator is mounted on an aircraft Auxiliary Power Unit (APU) and is used to control the position of a load compressor's inlet guide vanes.
Rugged Electric Actuator for Rotary Valves300 to 6,500 lb.-in. Output Torque. Bray Controls’ years of proven success in electric actuation, combined with innovative engineering, has produced the R4. The R4 features on-off or modulating control. This red, round electric actuator for rotary valves delivers highly reliable service.
The IP™ Actuator is a powerful actuator that delivers a long and impressive force of stroke while using only a small percentage of power.
Pneumatic low profile compact rotary actuators are ideal for payloads from 1 lbs (.44Kg) to 30 lbs (13.6Kg). The standard rotations available are 45, 90, or 180 degrees. Patented built in adjustable hard stops on output flange prevent pinion breakage. The AGR units have zero backlash due to the drive pistons never bottoming out; this also achieves true force throughout the rotation and end of stroke.
Combining the speed of air operation with the control and high force of fluid can result in an deal circuit.Air/Hydraulic Actuators are the combination of a fluid actuator and an air chamber. The air chamber is used to convert low air pressure to high hydraulic pressure.
EHQ-Series conformance withIncorporating Flowbus latest technology and extensive knowledge of the valve and actuator industry, EHQ spring return actuators offer reliability and high performance in severe service applications.
The great advantage of these actuators is their capability to handle high loads. Their resonant frequency of up to 60 kHz and extreme high accelerations of >100.000 m/sec² allows for their use in many applications that require an outstanding dynamic.
M.E.A. Incorporated manufactures an Electric Rotary Actuator designed to rotate the steam admission valve cam shaft on large driven turbines.The actuator rotation can be as much as 300 degrees and full rotation can be achieved in as little as two seconds. The output torque is 6000 lbs. per inch at full speed.
This is superior to a tandem design or a stacked cylinder design where the same increase in force would require increasing the effective piston diameter by a factor of 2. This requires more material which increases the price.
The ProActTM Digital Plus actuator is intended to be mounted on-engine to control varying functions including (but not limited to): fuel rack positioning, timing control, throttle valve, and wastegate positioning. The actuator is effectively a positioner with an integral driver, which will accept a position command signal from another device in the system such as a speed control.
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