Bürkert
Control head for decentralized automation of ELEMENT process valves
Type 8691 / Ident No. 264995
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
- Stát
- DE
Technical attributes
Jméno |
Value |
Unit |
|---|---|---|
| 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 | 1000 | 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) | 65/67 | |
| Weight | 0,460000 | kg |
| Approval type | , | |
| Certification type | , , , |
Downloads
Data Sheets
Popis |
Filesize |
Language / Country |
|
|---|---|---|---|
|
Type 8681 data sheet | installation kits for hygienic process valves | 6,2 MB | EN / EU |
|
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Type 8691 data sheet | control head for automation of ELEMENT process valves | 1,2 MB | EN / EU |
|
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Tipo 8691 hoja de datos | cabezal de control para automatización descentralizada | 1,6 MB | ES / ES |
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Typ 8681 Datenblatt | Adaptionen für hygienische Prozessventile | 6,1 MB | DE / DE |
|
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Typ 8691 Datenblatt | Steuerkopf für ELEMENT-Prozessventilen | 1,2 MB | DE / DE |
User Manuals
Popis |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
Additional manual Type 8681 8694 869X 879X | USB Interface for serial communication | 2,1 MB | EN,FR,DE / EU |
|
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Additional manual Type 8690 869X 8798 | Control units with ATEX approval | 1,5 MB | EN / EU |
|
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Additional manual Type 8691 869X 8798 | Replace puck | 701,3 kB | EN,FR,DE / EU |
|
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Operating Instructions Rev.2 | 4 MB | EN / EU |
|
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Operating Instructions Type 8691 | Control head | 4 MB | EN,FR,DE / EU |
|
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Quickstart 8691 Rev.2 | 3,2 MB | EN / EU |
|
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Quickstart Type 8691 | Control head | 2,3 MB | EN,FR,DE / EU |
|
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Software manual Type 8920 | Bürkert-Communicator | 981,8 kB | EN / EU |
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Bedienungsanleitung 8691 Rev.2 | 4 MB | DE / DE |
|
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Manual de usuario Tipo 8691 | Control head for decentralized automation | 853,5 kB | ES / ES |
|
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Manuel d'utilisation Rev.2 | 4,1 MB | FR / FR |
|
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Manuel supplémentaire Type 8690 8691 8692 8693 8694 8695 8696 8798 | AC181 homologat. ATEX | 1,4 MB | FR / FR |
|
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Quickstart 8691 Rev.2 | 3,2 MB | DE / DE |
|
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Quickstart 8691 Rev.2 | 3,2 MB | FR / FR |
|
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Software manual Type 8920 | Bürkert-Communicator | 984,4 kB | DE / DE |
|
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Software manual Type 8920 | Bürkert-Communicator | 997,1 kB | FR / FR |
|
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Zusatzanleitung Typ 8690 8691 8692 8693 8694 8695 8696 8798 | AC181 ATEX-Zulassung | 1,4 MB | DE / DE |
Software
Popis |
Filesize |
Language / Country |
|
|---|---|---|---|
|
Buerkert Communicator 3.3.1 | 242,9 MB | ML |
|
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Initiation Files EDS IODD A.02 | 3,2 MB | ML |
EU Declaration
Popis |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
EU-DoC|EU Declaration | 1,4 MB | EN,FR,DE |
|
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EU-DoC|EU Declaration | 1,7 MB | EN,FR,DE |
Interactive Animation
Popis |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
3D-Animation - 8691 | 3,5 MB | DE |
|
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3D-Animation - 8691 | 3,5 MB | EN |
Flyers and Catalogues
Popis |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
Flyer Best Practice - A new formulation line for insulin vials. | 401,1 kB | EN / GB |
|
|
Solutions for successful Cleaning in Place (CIP) | 484,9 kB | EN / EU |