The hvac Division of Siemens Building Technologies (Buffalo Grove, IL) now offers a complete line of 2- to 12-in. electronic and pneumatic butterfly valves for use in applications requiring two-position and modulating control. Two body styles are offered: wafer and lug. The lugged body is drilled and tapped to provide for removal of downstream piping at full pressure. A standardized cast-in top plate is an integral part of the body that allows for direct mounting of the actuators.