Bürkert Type 8691 Control Head for Decentralized Valve Automation
Revolutionary Control and Reliability in Decentralized Valve Automation
Enhance your automation capabilities and simplify your valve operations with the Bürkert Type 8691 Control Head, expertly engineered for decentralized automation of ELEMENT pneumatic process valves. Explicitly designed for precision, versatility, and resilience, the Type 8691 Control Head integrates seamlessly with Bürkert’s ELEMENT Type 21xx pneumatic valves, including angle seat valves, globe valves, diaphragm valves, T-diaphragm valves, and tank bottom diaphragm valves, enhancing functionality and performance in complex and demanding process environments.
Exceptional Design & Technology
The Bürkert Type 8691 Control Head employs advanced contact-free inductive sensors for valve position detection. Its intuitive Teach function automatically identifies and records valve end positions during initial setup, ensuring accurate, repeatable positioning. The robust stainless steel and PPS construction and EPDM seals ensure chemical resistance and long-term durability even under harsh industrial conditions.
Applications & Industry Use
The Type 8691 excels in hygienic and challenging applications in:
- Pharmaceutical production
- Biotechnology
- Food and beverage processing
- Dairy operations
- Cosmetic manufacturing
- Chemical industries
Its highly sanitary design, meeting stringent industry standards and approvals (ATEX II category 3G/D and IECEx), is ideal for environments where rigorous sanitation, regular washdowns, and precise control are crucial.
Customizations & Variants
Bürkert Type 8691 is customizable, enabling effective adaptation to specific automation requirements. Available customizations include:
- Single-acting (3/2-way) or double-acting (5/2-way) circuit functionality
- Linear and rotary displacement sensors
- Various fieldbus and digital communication protocols
- Adapter kits for third-party actuators
- Optional explosion protection approvals for hazardous areas
Why Choose Bürkert Type 8691?
The Bürkert Type 8691 control head surpasses traditional automation solutions by offering unmatched precision, ease of use, and maintenance efficiency. Unlike competitors, Type 8691 provides:
- Enhanced Safety: Advanced explosion protection ratings and robust construction.
- Superior Automation: Advanced IO-Link and AS-interface capabilities ensure seamless communication integration with your existing control systems.
- Improved Reliability: Contactless inductive sensing technology and automatic teach function ensure highly accurate and dependable valve positioning.
- Innovative Air Management: Integrated air duct design prevents actuator contamination, prolonging service life and reducing maintenance.
- Contact-free inductive valve position registration with teach function
- The integrated pilot air duct in actuator, eliminating external tubing
- Multicolored LED status indicators for clear visibility
- Modular and compact design for easy integration
- High-grade, chemically resistant materials
- Explosion protection (ATEX, IECEx) for enhanced safety
- Reliability: Consistent, precise valve positioning reduces errors and enhances process control.
- Efficiency: Internal control air routing minimizes setup complexity and significantly reduces installation and maintenance costs.
- Safety & Compliance: ATEX and IECEx approvals ensure safe operations in explosive environments.
- Ease of Installation: Quick and tool-free installation on various actuator types.
- Reduced Downtime: Robust design minimizes maintenance requirements, enhancing uptime and process efficiency.
- Material: PPS body, stainless steel casing, EPDM seals, PC cover
- Operating voltage: 24 V DC ±25%
- Fieldbus interfaces: AS-Interface, IO-Link, Bürkert system bus (büS based on CANopen)
- Sensor type: Inductive (contactless) position sensor
- Electrical connection: M12, 8-pin or cable gland (M16×1.5)
- Actuator compatibility: ELEMENT Type 21xx (Ø 70, 90, 130, 225 mm)
- Protection class: IP65/IP67, 4X according to NEMA 250
- Pressure: 3–7 bar supply pressure
- Explosion protection: ATEX II cat. 3G/D, IECEx approval
Related Products
At Liquidyne, we prioritize our commitment to quality and consistency. In 2017 we achieved ISO 9001:2015 Quality Management System certification to ensure we can repeatedly deliver consistently high-quality products and solutions. Being ISO 9001:2015 QMS Certified by Amtivo (USA), Inc, together with our USP Class VI Testing, ASME Bioprocessing Equipment (BPE), and EHEDG certification guarantee, we have the methodologies to assure quality. We will quickly and accurately rectify any issues if any of our products are ever in non-conformance.
