Belimo ZoneTight™ zone valves are designed for maximum efﬁciency in tight spaces. The product range sets new performance standards for both pressure dependent and pressure independent zoning applications. The Belimo zone valve offers zero leakage which eliminates energy loss and is equipped with an electronic rotary actuator that consumes up to 95% less power than conventional zone valves. The valve and actuator snap together quick and easy; no tools are required for assembly or flow adjustment. Designed for commercial buildings where higher close-off and the need to customize your flow to meet the coil’s design requirement. Common HVAC applications include unit ventilators, fan coil units, VAV reheat coils, fin tube baseboard, radiant panels, and other small water coils.