Adjustable differential bypass valve with automatic air release — designed to stabilize heating systems, reduce wear, and simplify maintenance. Key benefits Eliminates air pockets automatically: built-in automatic bleed mechanism releases trapped air without manual venting, improving heat transfer and reducing noise. Prevents pressure swings and system stress: the valve equalizes differential pressure to keep flow steady and protect pumps, radiators, and pipework from damage caused by pressure fluctuations. Easy, accurate monitoring: 360° dual-scale display shows readings in both bar and mH2O for quick verification from any angle. Reliable without power: self-regulating function activates at a preset pressure and operates independently of external power sources, ensuring continued protection during power loss. What it does and why you need it Regulates differential pressure across the loop to maintain stable flow and temperature distribution. Automatically vents air that would otherwise reduce efficiency and cause uneven heating or noisy operation. Provides clear pressure readout so technicians and homeowners can confirm system status at a glance. Key features Function: adjustable differential bypass valve with automatic bleed (air release) and self-regulating activation at a set pressure level. Readout: 360° dual-scale gauge displaying both bar and mH2O units for versatile monitoring. Power: no external power required; valve operates automatically once system pressure reaches the set threshold. Performance: steady pressure equalization to minimize pump cycling, reduce wear, and improve overall system efficiency. Compatibility: suitable for use in closed-loop heating systems, district heating circuits, and hydronic heating installations requiring differential pressure control and air removal. Practical applications Residential boiler systems: maintain even radiator temperatures and reduce cycling in single-family homes. Multi-zone apartment or small commercial buildings: stabilize flow between zones and protect pumps and valves from pressure imbalances. Retrofit projects and maintenance: add to existing hydronic circuits to reduce noise, improve circulation, and cut service visits for manual venting. Installation and operation notes Adjustable setting: set differential pressure according to the system design; valve will self-regulate at that pressure without external control. Maintenance: automatic air release minimizes manual venting; periodic visual checks of the dual-scale gauge are usually sufficient. Safety and reliability: continuous, passive operation preserves system performance even during power interruptions. Benefits at a glance Lower maintenance and fewer call-outs thanks to automatic air release Improved system lifespan and performance via stable pressure control Clear, dual-scale monitoring from any angle Dependable operation without external power Easy to integrate into standard hydronic heating circuits to improve comfort, reduce wear, and simplify system management.