The Bürkert Type 8691 Control Head is designed for decentralised automation of ELEMENT pneumatic process valves, providing reliable valve position detection and process control. The device uses a contact-free analogue sensor with an automatic Teach function to detect and store valve end positions during commissioning, ensuring accurate position feedback and simplified setup.
The Type 8691 integrates a pilot valve for single-acting or double-acting actuators and supports optional communication interfaces including IO-Link, AS-Interface, and Bürkert system bus (büS). Its hygienic, easy-to-clean housing, integrated pilot air duct, IP65/IP67 protection, and chemically resistant materials make it suitable for demanding applications in the food, beverage, pharmaceutical, and process industries
