For the first time, the intelligent positioners Type 8694 and Type 8791 are also available with an IO-Link interface. Bürkert Fluid Control Systems is the first supplier to offer its customers simple and, at the same time, intelligent networking of control valves at the field level. Operating and diagnostic data is therefore always available at the process control level and can be utilised for preventive maintenance.
Control valves with positioners are indispensable in the process industry. They are used to control processes or auxiliary media, for example during fermentation, separation, filling, or cleaning in place (CIP). The positioners Type 8694 (Image) and Type 8791 from Bürkert Fluid Control Systems (see company box) with digital communication IO-Link can now replace analogue pneumatic valve controllers and offer users great added value.
As first positioners with digital communication IO-Link for control valves on the market, they can easily be integrated into standard Fieldbus and automation systems with less wiring effort, for instance for accurate control tasks in pharma, biotechnology, and food and beverage industries. Diagnostic data enables optimised quality assurance and preventive maintenance. Also, parametrisation via IO-Link is enabled. PLC I/O cards for analogue signals are no longer necessary, installation becomes simpler, and process reliability increases. In addition to ELEMENT control valve systems and valves with linear and rotary actuators following IEC534-6 or VDI / VDE 3845, the new IO-Link positioners can also digitally connect hygienic process control valves.
