The two and three-way electrically actuated HVAC/BAC control valves are designed to assist in the transport of low-pressure steam or hot/cold water within a building for temperature regulation. The three-way valves are available in both mixing and diverting, with bronze or cast-iron bodies, and bronze or stainless-steel trim. The two-way valves are available in three types: single seated unbalanced, single seated cylinder balanced and double seated semi-balanced.