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    Control head for decentralised automation of ELEMENT process valves

    Type 8691 / Ident No. 237659

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    Produkt-Foto Typ 8691

    Specific products may differ slightly from the general images shown.

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

    Control head top 70 mm for actuator 20XX

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

    To help select the correct product please refer to the technical data, images and notes for proper use found in 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 position is done through a contact-free analogue sensor element, which automatically recognises and saves the valve end position through the Teach function during start-up. The integrated pilot valve controls single or double-acting actuators. As an option a communication interface, AS-Interface, DeviceNet, IO-Link or büS (based on CANopen) can be chosen. The design of the control head and the actuator enables an internal control air routing without external tubings. Besides the electrical position feedback, the status of the device is shown directly on the control head itself through coloured powerful LEDs, even in difficult ambient conditions. 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 protection of the housing is supported by a positive pressure inside the control head. Combined with Bürkert ELEMENT actuators, the pneumatic actuating system enables spring chamber aeration that avoids actuator chamber contamination from the environment.

    Commodity Codes

    Technical attributes

    Type 8691
    Product sub-group Control head / Position indicator
    Function Control head
    Valve function manual actuation Yes
    Pneumatic pilot valve 1 6144
    Pneumatic function 1 double acting No
    Pneumatic function 1 single acting Yes
    Valve diameter 3 mm
    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 Wire cable
    Electrical connection wire length 1.000 mm
    Electrical connection wire ready-made Flat cable clamp
    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
    Mounting type CLASSIC drive
    Protection type (IP max. with suitable connector) IP65/67
    Weight 0,460000 kg
    Show full table Collapse table


    Data Sheets

    Language / Country
    DTS Type 8691 data sheet | control head for automation of ELEMENT process valves 1.1 MB EN / EU
    DTS Type KK01 data sheet | adapterkits for hygienic process valves 5.9 MB EN / EU
    DTS Tipo 8691 hoja de datos | cabezal de control para automatización descentralizada 1.6 MB ES / ES
    DTS Typ 8691 Datenblatt | Steuerkopf für ELEMENT-Prozessventilen 1.1 MB DE / DE
    DTS Typ KK01 Datenblatt | Adaptersets für hygienische Prozessventile 5.9 MB DE / DE
    DTS データシート タイプ8691 | プロセスバルブエレメントの 分散型オートメーションのための コントロールヘッド 1.3 MB JA / JP

    User Manuals

    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 1.5 MB EN / EU
    MAN Additional manual Type 8691 869X 8798 | Replace puck 701.3 kB EN,FR,DE / EU
    MAN Operating Instructions 8691 Rev.2 | Control head 4 MB EN / EU
    MAN Operating Instructions Type 8691 | Control head 2.2 MB EN / EU
    MAN Quickstart 8691 Rev.2 | Control head 3.2 MB EN / EU
    MAN Quickstart Type 8691 | Control head 1.2 MB EN / EU
    MAN Software manual Type 8920 | Bürkert-Communicator 981.8 kB EN / EU
    MAN Bedienungsanleitung 8691 Rev.2| Steuerkopf 4 MB DE / DE
    MAN Bedienungsanleitung Typ 8691 |Steuerkopf 2.3 MB DE / DE
    MAN Manual de usuario Tipo 8691 | Control head for decentralized automation 853.5 kB ES / ES
    MAN Manuel d'utilisation 8691 Rev.2 | Tête de commande 4.1 MB FR / FR
    MAN Manuel d'utilisation Type 8691 | Tête de commande 2.4 MB FR / FR
    MAN Manuel supplémentaire Type 8690 8691 8692 8693 8694 8695 8696 8798 | AC181 homologat. ATEX 1.4 MB FR / FR
    MAN Quickstart 8691 Rev.2 | Steuerkopf 3.2 MB DE / DE
    MAN Quickstart 8691 Rev.2 | Tête de commande 3.2 MB FR / FR
    MAN Quickstart Typ 8691 | Steuerkopf 1.2 MB DE / DE
    MAN Quickstart Type 8691 | Tête de commande 1.3 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 1.4 MB DE / DE


    Language / Country
    SOW Buerkert Communicator 4.1.1 382.6 MB ML
    SOW Initiation Files EDS IODD A.03 3.7 MB ML

    EU Declaration of Conformity

    Language / Country
    ABD EU-DoC|EU Declaration 1.7 MB EN,FR,DE

    Interactive Animation

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

    Flyers and Catalogues

    Language / Country
    MISC Product Overview Process and Control Valves 3.4 MB EN / EU
    MISC Flyer Best Practice - A new formulation line for insulin vials. 401.1 kB EN / GB
    MISC Flyer Best Practice - Diaphragm valves for an automated production line at Unither Pharmaceuticals. 351.1 kB EN / GB
    MISC On/Off and Control Valves 1.1 MB EN / EU
    MISC Solutions for successful Cleaning in Place (CIP) 484.9 kB EN / EU

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