Automatic bleed mechanism This adjustable differential pressure bypass valve includes an automatic venting mechanism that opens to release trapped air, delivering optimal system performance without manual intervention. Pressure balancing design Keeps water flow stable, reducing fluctuations that can lead to inefficiencies or potential system damage, supporting a reliable heating operation. User-friendly double scale 360-degree viewing display shows measurements in both bar and mH2O for easy monitoring and adjustment, accessible to all users. Self-regulating operation Activates automatically when the set pressure is reached, ensuring consistent heating system performance without external power. Use scenarios - In a multi-zone hydronic heating system, the valve vents air automatically to prevent air locks and maintain even flow to all zones. - During boiler retrofits or new installations, it minimizes manual bleeding and protects components from pressure fluctuations. - For routine maintenance and quick checks, the dual-scale readout simplifies monitoring and adjustment.