VB6A005+003+AL | Honeywell | Control Valves & Actuators

VB6 ball valves are designed to serve as both change-over valves and control valves in one, using only one modulating actuator to achieve both functions, connecting a single 2-pipe heat exchanger to 4-pipe systems. The simultaneous rotation of two balls, mechanically connected to one stem, opens supply and return ports on one control sequence (e.g. cooling), while keeping the second sequence closed (heating). This control scheme avoids mixing between flows and cannot be overridden. They reduce wiring and eliminate the need of a change over valve, while enabling the use of a single coil for heating and cooling. They are ideal for chilled beam units, fan coil units, small air handling coils, bypass piping, and other applications featuring a single heat exchanger in four-pipe systems to control chilled or hot water in closed loop systems.