Flow Control of Water for Injection (WFI) User Points

In pharmaceutical manufacturing, Water for Injection (WFI) is distributed through a dedicated loop system to ensure sterile and high-purity water is available at critical use points. Each point-of-use valve represents a potential contamination risk, necessitating the use of sanitary valves designed for ultra-pure applications.

The Steriflow/Equilibar FDT Sanitary Regulator is being developed as a potential WFI user point valve, providing precise flow control while maintaining sterile conditions in the distribution system.

How the Steriflow/Equilibar FDT Regulator Works

🔹 Normal Operation – WFI circulates continuously through the distribution loop to prevent stagnation.
🔹 User Point Activation – When WFI is needed, the FDT valve diverts flow to the application, maintaining precise control.
🔹 Feedback Loop Control – Works in tandem with a flow meter to ensure accurate delivery of WFI.

Key Advantages of the Steriflow/Equilibar FDT Design

✅ Small Footprint – Ideal for tight pharmaceutical process environments.
✅ High Turndown Ratio – Provides stable control across a wide range of flow rates.
✅ Ultra-Fast Response – Instantly reacts to flow or setpoint changes.
✅ Remote Control Capability – The electro-pneumatic pilot regulator can be located away from the valve, simplifying installation.
✅ Superior Automation Performance – Ideal for computer-controlled pharmaceutical systems.

Optimizing WFI Flow Control

The Steriflow/Equilibar FDT Sanitary Regulator offers an innovative solution for controlling WFI at user points, enhancing precision, response time, and automation compatibility.