Taco’s Zone Sentry Zone Valve is NSF 61 G-certified and uses microcircuit-based logic to control a gear-driven electronic actuator that drives a ball valve-based body design. Its electro-mechanical operation allows for energy efficiency, flow capacity, shutoff pressure rating, ease of installation and diagnostic capability. The design permits 12 valves to operate from a single, 40VA transformer. Available in a two-way sweat configuration with either a normally open or normally closed actuator, it can be installed in any direction/orientation. Snap-in quick connects allow for a simple, secure wiring hook-up.