ESBE series ALB 144 is either controlled by a 3-point (increase/ decrease) signal or by a proportional (0..10V, 2..10V) signal. Proportional control signal gives a fast actuator. The electronic circuitry of the actuator ensures that the running time is the same, regardless of the stroke of the valve in question. It is easy to mount and connect the actuator. It can be mounted directly onto ESBEs control valves, without any linkage kit. The working range of the actuator is adjusted automatically depending on the stroke of the valve. The electronic circuitry of the actuator then takes care of the adjustment of the valve end positions.
The actuator receives a control signal from a controller thescrew transmits a linear movement which moves the stem of the valve
There is a manual operation handle on the actuator, when it is lowered the motor stops the actuator can then be operated manually if the handle is turned
The actuator is equipped with a 2–10V DC position feedback signal, where 2V always corresponds to the closed position and 10V to the open position
At sequence control the end position contacts could be used to switch entirely at closed respectively fully open positions.