H525B+NVD24-SR-T

Managing hydronic systems in modern HVAC installations requires precise, reliable control of fluid flow—particularly when balancing return loops, mixing hot and chilled water, or controlling critical zones. The H525B + NVD24‑SR‑T combination meets this requirement by pairing Belimo’s robust actuator design (500 N thrust, 20 mm stroke) with a versatile modulating control input (0–10 V) and feedback output (2–10 V). The AC/DC 24 V supply ensures compatibility with most automation panels and controllers. With position feedback, the system not only drives the valve but reports its status back to the building management system, enabling better diagnostics and system health monitoring. Compared to simpler on/off valves or basic actuators, this package offers smoother transitions, finer control and better system integration—reducing noise, water hammer and energy waste. Use cases include chilled‑water coil control in office buildings, mixing valves in boiler plants, or retrofit projects converting binary valves into fully modulating systems. Its compact footprint and trusted brand performance make it suitable for OEMs, system integrators or facility managers looking for high‑quality control without over‑engineering.