A strong alliance for the future

The future and successful development of OPOS Interface are based on a sturdy partnership between the companies ARCA, bar and Siemens. Learn more about the motivation of this cooperation, company profiles and associated products.

What’s behind OPOS Interface is the common goal of the companies ARCA, bar and Siemens to increase customer advantages regarding the interface between a pneumatic actuator and an intelligent positioner. Further the goal is to develop a simplified and optimized industrial standard. The partners wish to combine the advantages of an open interface with the technical preferences of an integrated interface with OPOS Interface. With the common portfolio of control valves, pneumatic linear or part-turn actuators as well as intelligent positioners a variety of applications and demands can be fulfilled from a single source with OPOS Interface. The focus herein is always on easy handling and safety and thus on the end customer.