The actuator receives a control signal from a controller, Linear movement is transmitted by a screw via a gear wheel to the stem of the valve. The actuator is simple to operate manually with a wheel or a crank. (Versions with spring return function applied are not able to be manually operated). The end positions of movement are set by a red and a blue indicator
ESBE series ALD is designed for proportional signal (0..10V, 2..10V, 0..20mA or 4..20mA) or 3-point (increase/ decrease) signal.
Supply voltage 24 VAC or 230 VAC. Force 900N /1200N/ 2000N. The actuator is simple to install. It is designed for direct fitting on ESBEs control valves. No adaptor kit is required.
The actuator is suitable for control valves with a stroke of either 10 .. 25 mm or 10 .. 45 mm and has a built-in force limitation.
The actuators series ALD for proportional signals are automatically adjusted for the actual valve stroke
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