The Nexus Valve Fluctus is a range of manual balancing valves used in water-based heating and cooling systems to ensure an evenly distributed flow in zones, branches, risers and terminal units. Applications are typically central heating or cooling systems as well as fan coil units in multi-storey buildings. The Nexus Valve Fluctus valve is compact having flow measuring, regulation and isolation functions all in one unit. The DN 65-600 valves are manufactured in steel and cast iron. The Nexus Valve Fluctus has a built in Venturi nozzle for accurate measuring. This design provides the Nexus Valve Fluctus with consistent measuring accuracy tolerances within ±3%, and the Nexus Valve Fluctus is more accurate than variable orifice double regulating valves. Because of the higher accuracy and low pressure loss, the Nexus Valve Fluctus is more efficient for reduced energy consumption when heating and cooling systems are balanced. Min/Max Temperature: -20°C to 120°C. Max Pressure: 16 Bar.