• Perfect match between the actuator and ESBE valves Series VLG100
  • Different control signal available
  • Easy assembly thanks to the threaded ring nut
  • Stroke indicator on actuator

The ESBE Series ALG400 is a thermo-electrical actuator suitable for fan coil valves such as ESBE Series VLG100 in both heating and cooling applications. The actuator has a force of 140N and an operating stroke of 2.5 mm. The actuator –valve assembly is easily made thanks to the threaded ring nut.

The actuator is available in 24V AC/DC or 230V AC versions with 2-point or in 24V AC version with proportional control signal.

Product range


ALG434, ALG436
ALG438 Reference Supply voltage Control signal Force [N] Stroke [mm] Running time [s] Weight [kg]
22500100 ALG434 110-230V AC 2-point 140 2,5 see Data sheet 0,15
22500200 ALG436 24V AC/DC 2-point 140 2,5 see Data sheet 0,15
22500300 ALG438 24V AC Proportional 140 2,5 see Data sheet 0,17
Installation support


Mounting positions
Installation dimensions


Technical data

Technical data

Power supply: ALG434: 110-230V AC, 50/60 Hz;
ALG436: 24V AC, 50/60 Hz / 24V DC;
ALG438: 24V AC, 50/60 Hz
Power consumption - starting: ALG434 (230V): 50W;
ALG434 (110V): 12W;
ALG436: 4W;
ALG438: 5W
Power consumption - operating: 1,8W
Stroke: 2,5 mm
Force: 140 N
Control signal: ALG434/ALG436: 2-point;
ALG438: 0 - 10V DC
Enclosure rating: IP44 (vertical mounting)
Protection class: II
Weight: ALG434/ALG436: 0,15 kg;
ALG438: 0,17 kg
Material: Technopolymer case self-extinguishing V0
Ambient temperature: max.: +50 °C
Ambient temperature: min.: +2 °C
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU


Please see Installation instruction
Download area

Download area

Type Preview Download
Data sheet ALG400 download
Installation instruction ALG400 download
Certificate Declaration of Conformity ALG400 download
Image ALG434/ALG436, high res download
Image ALG438, high res download
2D Image ALG434/ALG436 download
2D Image ALG438 download