Pneumatic actuators

RTK pneumatic actuators are specifically designed for RTK control valves. They are robustly built and equipped with a durable diaphragm. Their main feature is the very fast adjustment, enabling them to follow almost any process with high accuracy.

rtk-pneumaten.webp

There are several versions available with different drive capacities. As standard, these pneumatic actuators are supplied with either a Siemens Sipart PS2 or a Schneider Foxboro SRD998 positioner for precise valve position control.

Pneumatic actuator coding

TypeDiaphragm (cm2)Stroke (mm)
ST611512020-25
ST613528035
ST616053040-60
ST6175100060-100
ST6175 Tandem2 x 100060

Positioners 

  • Siemens Sipart PS2 

  • Foxboro SRD998 

    Click here for Sipart PS2 vs. Schneider SRD998  

Pneumatic actuator options

  • Available in normally open (NO) or normally closed (NC) versions
  • Support for various bus communication systems, including Profibus
  • Optional manual override
  • Available in explosion-proof version (ATEX certified)
  • Optional additional switches for valve position indication