The VB610R is a 6-port motorized ball valve that performs a diverting function between two water circuits in 4-pipe changeover system. The VB61R valve will switch between heating and cooling with the addition of the SmartX MB1 two-position rotary actuator. Flow regulation is provided from an additional SmartX PIBCV valve and actuator. This provides the additional benefit of having a balanced energy efficient solution with superb proportional control. No cross-flow between supply circuits, Single on/off control signal to changeoversupply circuits, Visual indication of actual valve position. Power supply 24 AC +/- 20%, DN 20, Kvs 4.3 m3/h. Pressure class PN16, torque 10 Nm. PED directive 97/23/EC. PED directive 97/23/EC.