CU4 & CU4plus Valve Control Unit - Certified for ATEX / IECEx / CCC Zone 2

CU4 and CU4plus valve control units are certified for ATEX, IECEx and CCC Zone 2 environments. Ensure safe, compliant, and precise control in hazardous zones.

CU4 and CU4plus Control Units

Advanced Control for Hazardous Zone 2 Applications

The CU4 and CU4plus are cutting-edge control unit enabling safe, efficient, and reliable operations in hazardous ATEX, IECEX and CCC Zone 2 applications†. Compatible with D4 / D4SL SPX FLOW sanitary valves rated for zone 2, these control units offer versatility with AS-interface, IO-link, and Direct Connect 24V DC options.

†Suitable for gas applications Ex ec IIB T4 Gc

Key Advantages

Safety and Reliability

Operational safety in hazardous environments
Manual override solenoids for emergency control
Toolbox software for advanced monitoring and diagnostics

Sensor Precision and Feedback

High-precision position sensors with simple adjustment
Contact-free valve stem measurement
Teach-In function for fast feedback setup (CU4plus)

User-Friendly Features

Integrated manual override solenoids and airflow throttling
Ultra-bright LEDs showing valve position, power, and solenoid status

Smart Connectivity

IO-Link Integration

Fully compatible with IO-Link infrastructure for flexible and intelligent control. The IO-Link Device Description (IODD) file is available for easy integration.

Key Applications

Explosive atmospheres in Zone 2 in the following industries:

Distilleries
Liquor Manufacturing
Soft Drinks
Food & Beverage
Chemicals
Personal care

CU4 24VDC Direct Connect
CU4 AS-i
CU4plus AS-i
CU4plus Direct Connect
CU4plus IO-Link - IO-Link Device Description (IODD) file available here.