Type 8690 - Pneumatic control unit for decentralised automation of process valves ELEMENT
Type Description
The pneumatic control unit Type 8690 is designed for decentralised automation of ELEMENT Type 21xx pneumatic process valves. Mechanical or inductive limit switches register the valve position. The integrated pilot valve controls single or double-acting actuators. The design of the control unit 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 pneumatic control unit itself. 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.
- Compact design
- Integrated pilot valve with manual override
- Integrated control air routing in the actuator
- Visual position indicator
- With ATEX II cat. 3G/D and cat. 2G/D approval
For selecting the correct product please refer to the technical data, images and notes for proper use according to the data sheet.
Can be combined with
Applications & Tools
Downloads
Data Sheets
User Manuals
Declaration of Conformity
Functional Safety
Description |
Filesize |
Language / Country |
|
---|---|---|---|
ProdCert|Safety 8690ff Exida FMEDA | 767.9 kB | EN | |
ProdCert|Safety Exida Zertifikat SIL | 107.7 kB | EN |