Due to our territory agreement with Siemens, Lesman is the authorized Siemens sales representative in Illinois, Indiana, Wisconsin, Eastern Missouri, Michigan's Upper Peninsula, and the Paducah, KY area. If you are outside that area, you can find your local sales office or get technical assistance by calling 800-365-8766 or 972-522-4500, or sending an email to piabusales.industry@siemens.com.

Siemens SIPART PS2 Electropneumatic Valve Positioners

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 valve positioner offers 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.

Siemens' Integral Volume Booster mounts directly on a PS2 valve positioner, and directs a high volume air supply to the actuator. It's designed for pneumatic actuators that require high flow for fast stroking times. It can reproduce pneumatic signals in a 1:1 ratio for applications that demand increased flow capacity and a reduction in piping, all while maintaining small step accuracy. This eliminates the complex piping and additional fittings required with external volume booster devices, reducing material and labor costs as much as 60 percent.

Key Specifications

  • 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: Now available with stainless steel flameproof Ex d housing
  • Minimal own air consumption, thanks to piezo technology — for quick ROI
  • Simple operation and programming using three keys and a two-line LCD
  • Automatic startup function with self-adjustment of zero and span
  • Options expand functionality for position feedback, alarms, and fault signaling
  • Push-button switching between auto, manual, and configuration modes
  • Compatible with Siemens SIMATIC PDM configuration software

Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

A complete catalog number will look like this: 6DR5011-0NN11-0AA0
Description Catalog Number
SIPART PS2 Electropneumatic/Digital Positioner
(Note 1)
4-20 mA, 2-Wire
4-20 mA, 2-/3-/4-Wire
4-20 mA, 2-Wire, with HART®
4-20 mA, 2-/3-/4-Wire with HART®
Profibus PA
Foundation Fieldbus
6DR50_ _-
6DR53_ _-
6DR51_ _-
6DR52_ _-
6DR55_ _-
6DR56_ _-
Actuator Action Single Acting
Double Acting
_ _ _ _ _1_-
_ _ _ _ _2_-
Enclosure Plastic Housing
Aluminum Housing (Single Acting Only)
Stainless Steel Housing
Explosion Proof Housing
_ _ _ _ _ _0-
_ _ _ _ _ _1-
_ _ _ _ _ _2-
_ _ _ _ _ _5-
Safety Rating None
FM/CSA Explosion Proof
0N_ _ _-
0E_ _ _-
Connection 1/2" NPT Electrical, 1/4" NPT Pneumatic _ _N_ _-
Limit Switch None
Solid State Alarm Module
Mechanical Limit Switch Module
_ _ _0_-
_ _ _1_-
_ _ _3_-
Option Module None
4-20 mA Position Feedback
_ _ _ _0-
_ _ _ _1-
Options None
Gauge Options (Add R-Code Below)
Gauge Block Aluminum, Single Acting
Aluminum, Double Acting
316 Stainless Steel, Single Acting
316 Stainless Steel, Double Acting
Accessories and Options
FM-Approved Alarm Module
FM-Approved Iy Module
Mounting Set, 2-35 mm Linear Actuators (IEC 534)
Mounting Set, Part Turn Actuators (VDI/VDE 3845)
Aluminum Gauge Block, Single Acting, 1/4" NPT
Aluminum Gauge Block, Double Acting, G1/4
NCS Sensor for Part Turn Actuator
NCS Sensor for Linear Actuator (>14mm)
RS-232 Siemens HART® Modem
SIPART PS2 Installation Instructions
SIPART PS2 Manual for Models 6DR50 to 6DR53
SIPART PS2 Manual for Model 6DR55
SIPART PS2 Manual for Model 6DR56


  1. Models 6DR53 and 6DR51 only have explosion proof ratings when ordered with the EExD explosion proof housing (5).


Subscribe to the Lesman Instrument Company YouTube channel.Lesman Instrument Company on YouTube

Video is a great way to learn about instruments and technology, and it's available whenever you need it. Watch step-by-step instructions on how to configure a level transmitter or use Siemens' Sonic Intelligence algorithms. We'll post videos we create, and those our manufacturer partners share with us, so you don't have to look in multiple places to find the video training you need.

Subscribe to Lesman's YouTube channel, and you'll get email notifications as soon as we add new training videos and webinars.