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CU4plus - Valve Control Units

Product Type:
Valves / Control Units

Control with AS-interface bus system, Direct Connect and IO-Link

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The CU4plus utilizes the latest in advanced APV control unit technology to offer the optimum solution to control and monitor sanitary valves. The control units provide increased process accuracy and safety, easy operation, and reliable diagnostic tools for predictive maintenance. The CU4plus is available with 24VDC Direct Connect, IO-Link, as well as AS-I bus communication protocols.


  • Highly accurate, contact-free valve stem measuring
  • Teach-In function for quick and easy feedback adjustment
  • Ultra bright LEDs for clear indication of valve position, power, and solenoid activation
  • Manual override solenoids and adjustment screw to throttle actuator air flow
  • Ability to retrofit and upgrade on existing valves
  • Toolbox software for advanced control, monitoring, and service


CU4plus IO-Link - Additional Advantages

  • Interoperable flexibility leads to ease of installation and use
  • Real time diagnostics improves uptime
  • Unique air pressure monitoring allows for quick maintenance response
  • Data centralized for a robust network and less downtime
  • Seat lift pulsation enhances CIP / sustainability


IO-Link Device Description (IODD) file available here.




APV-8047 Valve Key GB
DELTA CU4Plus AS-interface Control Unit - ID-8046 US DE
CU4plus IO-Link Control Unit GB
H335331 - CU4plus AS-interface Toolbox Software User Manual GB
CU4plus AS-interface User Manual V1-V2 GB DE
CU4plus 24V Direct Connect User Manual GB DE
CU4plus IO-Link Control Unit GB
Success Stories
Valves in Action - Control Unit Saves Commissioning Time at Brewery - Control Units - VA4-18 US