Control valve actuators
CVA electric, non-intrusive control-valve actuators are available in linear and quarter-turn actions, and are suitable for a wide range of control-valve applications throughout the plant. The actuators eliminate the need for air supplies, and can be integrated into most process control environments. The actuators include wireless Bluetooth communication; a data logger; built-in super-capacitor, which provides an advanced, programmable method for fail-to-position protection; and can be specified for single-phase ac, or dc electrical supplies.
Rotork Process Controls