Actuator type Electric
Suitability Industrial processes
Features Double acting
On / off operation
Single acting
Ingress protection IP65
IP67
Operating temperature (deg. C) -10 to 55°C
 
 
 

The type 8681 control head is used for decentralised automation of hygienic process valves. It's IP protection and chemically resistant materials make it suitable for use in food, beverage and pharmaceutical industries.

Its universal adapter allows it to be combined with all normal commercial butterfly valves, ball valves, single and double seated valves.

With a decentralised automation concept, the control head takes over all pneumatic actuation, feedback and diagnostic functions up to and including fieldbus communication.

Features

  • The housing is easy to clean
  • process valve switching positions are detected by an inductive, analogue position sensor and reported to the PLC system
  • up to 3 pneumatic actuator chambers can be controlled independently (depending on the process valve type)
  • switching speeds of both movement directions can be set separately
  • inbuilt check valve prevents incorrect switching of process valve actuator chambers which could result from back-pressure
  • process valve switching positions are detected by an inductive, analogue position sensor and reported to the PLC system
  • Contactless position measurement system:
  • up to 3 switching points can be adjusted automatically by a Teach-In function
  • a fourth switching position can be read in and fed back via an external inductive proximity switch
  • Coloured status display signals the particular process valve switching position or indicates a diagnostic function such as maintenance required status or fault conditions
  • Universal attachment for hygienic process valves
  • Manual override operative with closed housing
  • Patented magnetically encoded manual override tool can be used to open the process valve from the exterior
  • Fieldbus AS-Interface or DeviceNet (option)


The type 8681 control head is used for decentralised automation of hygienic process valves. It's IP protection and chemically resistant materials make it suitable for use in food, beverage and pharmaceutical industries.

Its universal adapter allows it to be combined with all normal commercial butterfly valves, ball valves, single and double seated valves.

With a decentralised automation concept, the control head takes over all pneumatic actuation, feedback and diagnostic functions up to and including fieldbus communication.

Features

  • The housing is easy to clean
  • process valve switching positions are detected by an inductive, analogue position sensor and reported to the PLC system
  • up to 3 pneumatic actuator chambers can be controlled independently (depending on the process valve type)
  • switching speeds of both movement directions can be set separately
  • inbuilt check valve prevents incorrect switching of process valve actuator chambers which could result from back-pressure
  • process valve switching positions are detected by an inductive, analogue position sensor and reported to the PLC system
  • Contactless position measurement system:
  • up to 3 switching points can be adjusted automatically by a Teach-In function
  • a fourth switching position can be read in and fed back via an external inductive proximity switch
  • Coloured status display signals the particular process valve switching position or indicates a diagnostic function such as maintenance required status or fault conditions
  • Universal attachment for hygienic process valves
  • Manual override operative with closed housing
  • Patented magnetically encoded manual override tool can be used to open the process valve from the exterior
  • Fieldbus AS-Interface or DeviceNet (option)


Interested in this product?
Call 01285 648720
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Downloads
  • 8681, 869x and 879x remote adaptions for hygienic process valves
    8681, 869x and 879x remote adaptions for hygienic process valves
    21pp 4.14MB
    Download
  • 8681 control head for hygienic process valves
    8681 control head for hygienic process valves
    12pp 874.07KB
    Download
 
 
 
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Type 8681 control head for hygienic process valves