ETI Systems” patented VA Series valve actuators are rugged, cost-effective, and simple to install. These actuators can be integrated into a variety of flow process applications where, until now, the choices have been limited. The microprocessor-based VA Series can proportionally control virtually all pressure regulators, metering valves, needle valves, and low-volume ball valves up to 300 inch/lbs of torque. Now available with waterproof up to one atmosphere.