AMV 25 SD or SU electric actuators are used with valves gen.2009 type VRB, VRG, VF, VL with additional adapter (Code No. 065Z0311, not supplied) and VFS 2 valves up to DN 50 diameter. The actuator automatically adapts its stroke to valve end positions which reduces commissioning time. Optional auxiliary switches, feedback potentiometer and valve stem heater are available.