I guess a Rexa actuator could work, but I am afraid that it is quite costly compared to electric servo solution. -Do you have any price indication (need roughly 3kN force)? Also, we need a speed of at least 5" per second. On top of that profibus or other field bus to control the unit...
Knilter
Does anyone have experience with Exlar or other servo actuator for globe control valves. I am especially interested in explosive area installations. See previous post by PABW (unfortunately closed thread)