Posted on August 3, 2011 - ( views)
The 8681 control head was specially developed for decentral automation of hygienic seat valves, butterfly valves and ball valves. It supplements Bürkert's ELEMENT series of control heads, digital positioners and process controllers for diaphragm, angle seat and globe valves and rounds out the automation portfolio for the food/beverage and pharmaceutical industries.
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, such as butterfly valves, ball valves and single and double-seat valves. Since the control head is very easy to clean, features time-tested IP protection and is made of chemical-resistant materials, it is ideal for use in hygienic applications. Within the framework of decentral automation concepts the 8681, as a central unit, performs all pneumatic actuation, feedback and diagnostic functions, as well as bus communication. Depending on the process valve, as many as three pneumatic actuator chambers can be controlled separately
based on SAW technology
up to orifice diameter DN 50
offers low flow cut off function
with optimized turn-down ratio
in media-separated minimum-size solenoid valves
for complex tank shapes
for use with different sensor types
for decentral automation of hygienic valves
for hygienic & aggressive environments
PCN Europe’s March issue features an Industry Special covering issues concerning the Environment, we look at the role heat management plays in the world’s largest CO2 test facility, in another one we discover a zero liquid discharge treatment process for waste water. Our Product Focus on Measurement Technology includes among others an application story showing how predication and performance monitoring on a oil & gas platform enables onshore personnel to monitor essential equipment. In our technical article we look at ways to eliminate mechanical issues in differential pressure systems. At this time of the year we are looking forward to the trade show season, especially at Hannover Messe, the leading industrial trade show. This edition also presents you with many other application stories and product news from all areas of the processing industries, enhanced with datasheets and videos.