Siemens SIPART PS2 Electropneumatic Valve Positioners

SIPART PS2 is currently the most widely used positioner for linear and part-turn actuators in a wide range of process industries. This is not without reason. The proven all-round design has a particularly flexible stroke range, intelligent diagnostics, and communicates either via HART, PROFIBUS PA or Foundation Fieldbus. What has been proven so often SIEMENS-6DRis certainly the correct choice.
Designed in a Macrolon, aluminum or stainless steel casing, the SIPART PS2 positioners are suitable for all applications. Designed as standard with IP66 or NEMA 4x degree of protection, they are resistant to even the most hostile environments. SIPART PS2 is also available with an explosion-proof enclosure with EExd IIC T4-T6 type of protection.
SIPART PS2 exhibits its  communicative side in dialog with higher-level systems. It can be integrated into the communications landscape via PROFIBUS PA, Foundation Fieldbus or HART protocol. With HART and PROFIBUS, it is also possible to apply SIMATIC PDM to clearly display and document saved trends, histograms, as well as commissioning and operating data.
If you would like to  test your solenoid valve or replace its function by a positioner, SIPART PS2 prevents valves from closing or monitors open/close valves as an "intelligent solenoid valve.
By means of a regular partial stroke test, SIPART PS2 ensures that ESD valves (emergency shutdown) and other open/close automated valves remain movable in the event of an emergency. The attached solenoid valve can also be tested.
SIPART PS2  is equipped with  comprehensive diagnostics functions as standard. In order to provide advanced warning of expensive failures during operation, our positioners continuously check the actuator and valve.

Setpoint signal:

0/4–20 mA analog, HART, PROFIBUS PA or Foundation Fieldbus protocol

Stroke range:3 mm to  130 mm
0.1 inch (1/8”) to 7.9 inch (7.5”) (larger strokes on request)
Slewing angle range:30° to 100°
Ambient temperature:

-30 °C to +80 °C (-22 °F to 176 °F) (other temperature ranges on request)

Required air qualityClass 2 in accordance with ISO 8573-1

Max  air bleed in settled state

< 0.036 m3n/h (0.02 scfm)

Standard Macrolon enclosure to IP66/NEMA   4x protection, with optional aluminum or
stainless steel enclosure
Versions with external non-contacting travel sensors
High flexibility in the stroke range from 3 to 200 mm (0.1 to 7.9 inch) (more on request)
Communication via PROFIBUS PA, Foundation Fieldbus or HART
Intelligent diagnostics functions
EEx d explosion-proof version 
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Siemens SIPART PS2 Electropneumatic Valve Positioners


  • Only one device version for linear and rotary part-turn actuators
  • Choice of 0/4-20 mA with or without HART® or Profibus PA
  • Intrinsically safe or explosion proof housings available
  • Minimal own air consumption, thanks to piezo technology — short turn on investment
  • Simple operation and programming using three keys and a two-line LCD
  • Automatic startup function with self-adjustment of zero and span
  • Optional modules expand functionality for position feedback, alarms, and fault signaling
  • Switch between automatic, manual, and configuration modes at the push of a button
  • Compatible with Siemens SIMATIC PDM configuration software

The most widely used intelligent positioner for linear and rotary actuators, Siemens SIPART® PS2 electropneumatic positioner is used to control their final control elements. The PS2 electropneumatic valve positioner excels through its reduced installation overheads, function expansion with low-cost option modules, and enhanced diagnostics. With its wide range, and an infinitely adjustable 3- to 130-mm stroke range, SIPART PS2 can be directly integrated to modern actuators without pipe work and without additional overhead. And it can be used with even the smallest actuators because the fully integrated valve block comprehends external position signals, and makes SIPART PS2 a lot more compact.

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Supporting Documentation
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Lesman Catalog Section: Process Control AccessoriesAotewell Catalog Section: Process Control Accessories2.4MB
Siemens SIPART PS2 PDFSiemens SIPART PS2 Valve Positioners Brochure: High Precision Valve Control Using Intelligent Positioners850KB
Siemens SIPART PS2 PDFSiemens SIPART PS2 Valve Positioners Brochure: SIPART PS2 with Extended Diagnostics for Even More Process Security228KB
Siemens SIPART PS2 PDFSiemens SIPART PS2 Valve Positioners Technical Information and Specifications Catalog565KB
Siemens SIPART PS2 Manual PDFSiemens SIPART PS2 Valve Positioners Operation Manual9MB
Siemens SIPART PS2 Manual PDFSiemens SIPART PS2 Valve Positioners SIL Functional Safety Addendum to Operation Manual539KB
Siemens SIPART PS2 PDFSiemens SIPART PS2 Valve Positioners Condensed Operational Overview267KB



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