Discussion on the electro-hydraulic converter in electro-hydraulic actuators
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This post was last edited by RongshuOfDream on 2017-3-29 at 14:25. Electro-hydraulic actuators feature a large stroke, high thrust or torque, high level of intelligence, fast response time, high sensitivity, and a compact design. It has a wide range of applications; for example, electro-hydraulic actuators are used in the slide valves of catalytic cracking units, for controlling the speed of steam turbines, and in certain flue dampers. The core actuating element in such actuators is the electro-hydraulic converter. The types of electric actuators include servo valves, proportional valves, and logic ball valves (introduced in recent years). Which type of electric actuator is the most suitable for practical use? Is the operation of its control circuit manual or automatic?
Are servo valves used more often than proportional valves? Is the force feedback of proportional valves of poor accuracy?