The electronic actuators are an integral part of the company’s Apogee™ automation system. Siemens Building Technologies, Inc., 1000 Deerfield Parkway, Buffalo Grove, IL 60089-4513; 847-215-1000; ...

Both models provide precise flow control for hvac, quiet operation, and low power consumption, says the manufacturer. Siemens Building Technologies, Inc., 1000 Deerfield Parkway, Buffalo Grove, IL ...

By way of background, the inlet guide vane actuators and fuel gas control valves on the Siemens turbines regulate the ratio of air and fuel in varying loads for efficiency and minimal emissions.