Final element interface

ABB can provide valve positioning systems based on several different technical approaches.  Final element interface involves directly driving the valve or the existing valve linkage. Part of an electrohydraulic control (EHC) system retrofit includes new valve operators, and final element control is considered the optimal approach. 

Why ABB?

ABB has extensive experience in providing final element actuators for all types of turbine applications and EHC systems.  These actuators are custom designed for their application using industry standard components and approaches.  The valve actuators include the necessary hydraulic components for proper valve positioning as well as position feedback for a control system.

  • Precise valve positioning for accurate turbine control.
  • Increased reliability compared to existing servomotor design.
  • Redundant configuration available for servo valve and for position feedback.   



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