The 8681 control head was developed for decentral automation of hygienic seat valves, butterfly valves and ball valves. It supplements the company’s Element Series of control heads, digital positioners and process controllers for diaphragm, angle seat and globe valves. The 8681 has been specially optimized for decentral automation of pneumatically controlled hygienic process valves. It is universally adaptable and can be combined with all commercially available valve types. Since the control head is easy to clean, has IP (ingress protection) rating and is made of chemical-resistant materials, it is ideal for use in hygienic applications. As a central unit, the 8681 performs all pneumatic actuation, feedback and diagnostic functions, as well as bus communication. As many as three pneumatic actuator chambers can be controlled separately, depending on the process valve. — Bürkert Fluid Control Systems, Ingelfingen, Germany
A new control head for process valves
| By Chemical Engineering