Design Features: G-Series Actuators manufacturers are available on large butterfly and plug cocks where constant high torque capability throughout the stroke is required. They feature a rack-and-pinion design and are engineered for high-flow, high-cycle applications. They are available with either manual, professional cylinder or motor actuator input. The G-Series line of actuators provides long service life and features a rugged, heavy cast gear sector. Multiple bronze and stainless steel bearings supplier provide support and minimize friction to assure smooth operation and throttling action.