Siemens SIPART PS2 – Fail Safe, Fail in Place, Fail to Open

3 December 2020


The SIPART PS2 has grown to become the most widely used valve positioner for linear and part-turn actuators in different process industries. The electro-pneumatic positioner from Siemens has proved to be highly reliable in many valve control applications thanks to its extensive range of functions.

This animation explains the selectable behaviour of the SIPART PS2 for the case of electrical power failure. Depending on the process, there are three different options: Fail Safe, Fail in Place or Fail to Open.

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