Research Control Valves offer both Pneumatic (Types 754, 755, 759, 766, PA35, PA58) and Electric (SEVA 100, SEVA 200, EVA-1), actuators. Our Pneumatic actuators range from a small profile ¼ in. (7.5 in2) actuator to our new larger 2 in. (58 in2) actuator. We have a full range of pneumatic solutions to precisely reflect the accuracy of our control valves.