Siemens Smart Infrastructure has enhanced its Intelligent Valve with new glycol capability. As a result, the valve can now be used in hydronic circuits with ethylene glycol-based antifreeze. The glycol option substantially increases the range of use cases for the Intelligent Valve: It extends the application range to hydronic circuits that are exposed to ambient temperatures below 0°C during standstill. Example applications include coils in air handling units (AHUs) or recoolers of chiller plants. With the new capability, the required burst protection can be provided without sacrificing the well-known benefits of Intelligent Valve such as energy transparency, pressure-independent flow control or optimized Delta T (ΔT).