AME 438 SU actuator is used with two and three-way valves type VRB, VRG, VF and VL up to DN 50 diameter.

The actuator has some special features:

• it automatically adapts its stroke to the valve end positions which reduces commissioning time (self stroking)
• advanced design incorporates load related ‘switch-off’ to ensure that actuators and valves are not exposed to overload
• Spring up function: In case of power failure or power switch off spring up function retracks actuator stem to end position. Further manual stem positioning is not disabled.

Features:

• Nominal voltage: 24 VAC/DC, 50 Hz/60 Hz
• Control input signal:
  – 0(4) … 20 mA
  – 0(2) … 10 V
• Force: 450 N
• Stroke: 15 mm
• Speed: 15 s/mm
• Max. medium temperature: 150 °C
• Self stroking
• Output signal