500si Digital Positioner

Product Description

Logix 500 Positioner.pdf

Flowserve LOGIX 500Si is a compact digital positioner that suits both linear and rotary actuators. Its modular and flexible design allows mounting according to both VDI/VDE 3845 for rotary and VDI/VDE 3847 for linear actuators with integrated tubing. Optional feedback capability with optional plug in switches HART communication and auto calibration for simple and trouble free commissioning.


  • Digital electronics with Quick-Cal and Auto-Tune
  • Two-stage control for quick respons AND high precision
  • Local status LEDs
  • Visual Position Indication: Flat or Dome indicator