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
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
for pneumatic actuators
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PCN Europe's November issue features an Industry Special concerning the Oil & Gas industry; in our technical article on the subject we look at the role rotary encoders play in the oil or gas production , in another one we discuss the opportunities fracking could offer for the valve industry. Our Product Focus on Pumps, Valves & Compressors includes among others an application story showing how screw blowers increase the energy efficiency of water treatment. You might also be interested in our case study showing you how automation and drive technology help the brewery industry to maintain their market position. 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.