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    Control head for decentralized automation of ELEMENT process valves

    Type 8691 / Ident No. 227265

    Produkt-Foto Typ 8691

    The depiction of the products may differ from the actual specific design.

    • Produkt-Foto Typ 8691
    • Produkt-Foto Typ 8691

    Control head top 70 mm for actuator 20XX

    • Contact-free inductive valve position registration (Teach function)
    • Coloured illuminated status display
    • Integrated control air routing
    • Fieldbus AS-Interface, DeviceNet, IO-Link or büS (Bürkert System Bus)
    • With ATEX II cat. 3G/D / IECEx approval

    For selecting the correct product please refer to the technical data, images and notes for proper use according to the data sheet.

    Product description

    The control head Type 8691 is designed for decentralized automation of ELEMENT Type 21xx pneumatic process valves. The registration of the valve end position is done through a contact-free analog position sensor, which automatically recognises and saves the valve end position through the Teach function when starting up. The integrated pilot valve controls single or double-acting actuators. As an option a fieldbus interface, AS-Interface, DeviceNet, IO-Link or büS (based on CANopen) can be chosen.The design of the control unit and the actuator enables an internal control air channel without external tubings. Besides the electrical position feedback signal the status of the device is shown directly on the control head itself through coloured powerful LEDs showing a clear visible valve position status, even under dirty or dark environments. The housing is easy to clean and features proven IP protection and chemically resistant materials for use in hygienic processing in food, beverage and pharmaceutical industries. Focused on wash down applications the IP rating is supported by a positive pressure inside the control head. Combined with Bürkert ELEMENT actuators the unique pilot valve system enables a compressed air recycling that avoids actuator chambers contamination from the environment.


    Commodity Codes
    90268020
    Country
    DE

    Technical attributes

    Name
    Value
    Unit
    Type 8691
    Function Control head
    Valve function manual actuation Yes
    Pneumatic function 1 double acting No
    Pneumatic function 1 single acting Yes
    QNn value (gas) 250 l/min
    Temperature environment min -10 °C
    Temperature environment max 55 °C
    End position feedback internal 2 PCE
    End position feedback external 0 PCE
    End position feedback top yellow
    End position feedback bottom green
    For Actuator size 40 mm No
    For Actuator size 50mm Yes
    For Actuator size 63mm Yes
    For Actuator size 70mm No
    For Actuator size 80mm Yes
    For Actuator size 90mm No
    For Actuator size 100mm Yes
    For Actuator size 125mm Yes
    For Actuator size 130mm No
    For Actuator size 175mm Yes
    For Actuator size 225mm Yes
    Port connection 1 type Inner thread
    Port connection 1 thread type G
    Port connection 1 thread marking 1/8
    Electrical connection sort Plug - M12
    Electrical connection type male
    Electrical connection material Stainless steel
    Voltage / rated voltage 29.5 V
    Voltage / rated voltage 31.6 V
    Supply system-internal No
    Supply via BUS Yes
    Supply via separating barrier No
    AC voltage No
    DC voltage Yes
    Communication interface protocol AS-i
    AS-i profile S-B.A.E
    Mounting type CLASSIC drive
    Protection type (IP max. with suitable connector) 65/67
    Weight 0,505000 kg
    Weight 0,505000 kg
    Show full table Collapse table

    Downloads

    Data Sheets

    Description
    Filesize
    Language / Country
    DTS Type 8681 data sheet | installation kits for hygienic process valves 4.6 MB EN / EU
    DTS Type 8691 data sheet | control head for automation of ELEMENT process valves 386.9 kB EN / EU
    DTS Tipo 8691 hoja de datos | cabezal de control para automatización descentralizada 1.6 MB ES / ES
    DTS Typ 8681 Datenblatt | Adaptionen für hygienische Prozessventile 4.6 MB DE / DE
    DTS Typ 8691 Datenblatt | Steuerkopf für ELEMENT-Prozessventilen 361.1 kB DE / DE

    User Manuals

    Description
    Filesize
    Language / Country
    MAN Additional manual Type 8681 8694 869X 879X | USB Interface for serial communication 2.1 MB EN,FR,DE / EU
    MAN Additional manual Type 8690 869X 8798 | Control units with ATEX approval 1 MB EN / EU
    MAN Additional manual Type 8691 869X 8798 | Replace puck 701.3 kB EN,FR,DE / EU
    MAN Operating Instructions Rev.2 1.4 MB EN / EU
    MAN Operating Instructions Type 8691 | Control head 4 MB EN,FR,DE / EU
    MAN Quickstart 8691 Rev.2 1.1 MB EN / EU
    MAN Quickstart Type 8691 | Control head 2.3 MB EN,FR,DE / EU
    MAN Software manual Type 8920 | Bürkert-Communicator 981.8 kB EN / EU
    MAN Bedienungsanleitung 8691 Rev.2 1.4 MB DE / DE
    MAN Manual de usuario Tipo 8691 |Control head for decentralized automation 853.7 kB ES / ES
    MAN Manuel d'utilisation Rev.2 1.5 MB FR / FR
    MAN Manuel supplémentaire Type 8690 8691 8692 8693 8694 8695 8696 8798 | AC181 homologat. ATEX 1 MB FR / FR
    MAN Quickstart 8691 Rev.2 1.1 MB DE / DE
    MAN Quickstart 8691 Rev.2 1.2 MB FR / FR
    MAN Software manual Type 8920 | Bürkert-Communicator 984.4 kB DE / DE
    MAN Software manual Type 8920 | Bürkert-Communicator 997.1 kB FR / FR
    MAN Zusatzanleitung Typ 8690 8691 8692 8693 8694 8695 8696 8798 | AC181 ATEX-Zulassung 960.1 kB DE / DE

    Software

    Description
    Filesize
    Language / Country
    SOW Buerkert Communicator 3.1.2 178.7 MB ML / AF
    SOW Initiation Files EDS IODD A.02 3.2 MB ML

    EU Declaration

    Description
    Filesize
    Language / Country
    ABD EU-DoC|EU Declaration 1.4 MB EN,FR,DE
    ABD EU-DoC|EU Declaration 1.3 MB EN,FR,DE

    Interactive Animation

    Description
    Filesize
    Language / Country
    3D_ANIMATION 3D-Animation - 8691 3.5 MB DE
    3D_ANIMATION 3D-Animation - 8691 3.5 MB EN

    Flyers and Catalogues

    Description
    Filesize
    Language / Country
    MISC Flyer Best Practice - Diaphragm valves for an automated production line at Unither Pharmaceuticals. 351.1 kB EN / GB
    MISC Solutions for successful Cleaning in Place (CIP) 484.9 kB EN / EU
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    Item No.
    Description
    918038 round-plug fem. M12 4-pol. w.cable 5m PV