SIPART PS2 Valve Positioner

One that masters everything

The SIPART PS2 is the most widely used valve positioner for linear and part-turn actuators in industrial applications. It has proved reliable in many valve control applications thanks to its diagnostics capability and extensive range of functions. The all-round positioner of Siemens is well equipped - even for extreme ambient conditions. The following enclosure options are available: Polycarbonate, Aluminum, Stainless steel, Flameproof aluminum or 316L stainless steel.

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  • High reliability and product lifetime thanks to robust enclosures and use of high-quality components
  • Less maintenance costs and enhanced diagnostic options due to integrated pressure sensors
  • Intelligent features (Partial Stroke Test, Fail-in-Place function, Valve Signature, …) for higher plant availability and process security
  • Easy mounting, wiring and calibration of the SIPART PS2 positioner for all common types of valves including comprehensible instruction manual

More functions, more possibilities

Remote variants

Prepared for extreme applications: The SIPART PS2 valve positioner with a separate remote position detection can be used for valves at difficult accessible locations or for particularly critical process conditions, such as extreme vibrations or temperatures, dust or water influences. The following external position detection systems can be distinguished:

Special protection in radiation-polluting applications: Control electronics require special protection in environmental conditions with high-energy radiation. The SIPART PS2 valve positioner provides the option for separate, remote control electronics that are fitted in a control cabinet, whereas the position detection system and the pneumatic unit remain on the valve.

  • Easier access to control electronics through control cabinet
  • Distance between control electronics and valve can be up to one kilometer




Technical Details

4 … 20 mA, HART 7, Profibus PA, FOUNDATION Fieldbus
Range of stroke
3 to 130 mm (larger strokes on request)
Angle of rotation range
30° to 100° (optional 180°)
Ambient temperature

-30 °C to +80 °C (optional -40°C)

Required air quality
Class 3 to ISO 8573-1
Max. air consumption in the controlled state
0,01 Nm³/h (0.006 scfm)
Limit values
2 (electronic, mechanical or capacitive)
Digital input / digital output
2 DI / 3 DO
Degree of protection
IP66, NEMA 4x
Explosion protection

ATEX, IECEx: Ex i, Ex e, EX t, Ex d



Various global certificates and marine approvals

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As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise. With our offerings, you can expect a high degree of reliability and a successful digital future for your company.

Well trained for excellent handling

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Safety integrated

Safety is key in the process industries. A failure in instruments relevant for safety may have serious implications for humans, the process and the environment. Therefore, a wide range of our process instruments come with on-board safety features for maximum risk reduction.


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