ELECTRIC CONTROL-VALVE ACTUATORS

Aug. 6, 2008
New Rotork electric, non-intrusive CVA control-valve actuators provide a major technological advance in precise operation, HMI capabilities, and fail-to-position protection as well as significant energy savings.    They are available in linear and quarter-turn actions for a wide range of control-valve applications, including those in challenging working environments. The new actuators eliminate the need for costly air supplies and are easily integrated into most process control environments, including those that use Hart and Foundation Fieldbus protocols.    CVA actuators provide extremely precise control-valve operation with repeatability and resolution performance at <0.1% of full scale. In addition, they include, as a standard feature, wireless Bluetooth communication technology that can be used for quick and easy actuator set-up and adjustment.     All Rotork CVA actuators incorporate a data logger, which provides an extensive record of such operational and maintenance-related data as valve torque profiles and relevant statistical information.     They utilize a built-in super-capacitor that provides an advanced, programmable method for fail-to-position protection.