New control unit for D4 Series Valves creates one of the most advanced mix-proof valve solutions

SPX® FLOW has announced the release of the new CU4plus control unit for its next generation APV® / Waukesha Cherry Burrell® D4 Series double seat mix proof valve. With fully integrated seat lift detection, the new control unit combined with the state-of-the-art D4 Series hygienic valve is one of the most sophisticated and reliable valve solutions available.

The CU4plus control unit uses an innovative design with completely internal sensors to detect all critical valve positions, so the electronics are secure from damage during handling and washdown. For rapid commissioning, the unit incorporates the proven ‘Teach-in’ function, which enables reliable set-up of valve position and feedback with the push of just one button.  Its high-resolution, integrated measuring system ensures accurate and reliable control, while an advanced toolkit provides the ability to monitor valve parameters including the number of open/close cycles, strokes, operating hours, feedback position trends and power status.

Chris Sinutko, Global Product Manager – Valves, Food & Beverage at SPX FLOW, commented: “This is a natural expansion to the options available with our popular D4 Series mix proof valves. The new control unit gives added security and functionality for hygienic applications. With its sleek fully-integrated seat lift detection design, it also addresses the pain points with external sensors being exposed to the environment.”

Based on proven CU4 Series technology, the new control unit offers chemically resistant, high strength construction with ultra-bright LEDs for clear indication of valve position, power and solenoid activation. Its accurate and reliable control is provided by a high-resolution, contact-free measuring system.

Sinutko said: “The D4 Series valves offer exceptional value for money with all-inclusive features and, as they are designed to minimise CIP losses, reduced cost of ownership. Combined with the CU4plus control unit, this really is a complete valve solution, with all the accuracy and tools required to help ensure safe, reliable operation for state-of-the art automated processing.”

The new control unit utilises AS-i bus protocol and is suitable for all D4 Series valve types. It can also be retrofitted to existing D4 installations. SPX FLOW additionally offers a straightforward upgrade insert to change from the previous generation DA3+ to DA4 Series technology, which can now also incorporate the CU4plus control top.