Power station upgrades with Rotork CVA

At one of the Gothenberg Energy power stations in Sweden, the company has introduced the Rotork CVA electric control valve actuator on a fluid drive application in order to update the equipment and reduce maintenance requirements. The CVA-1200 quarter-turn actuator was installed on the power station feed water pump to adjust the drive and provide varying output speeds from the single speed motor on the pump. The CVA has replaced an obsolete electric actuator on the installation. The new actuator operates with a 24Vd.c. power source and 4 -20mA control signal as standard, so Gothenburg Energy did not need to make any changes to the power and signal cabling when carrying out the upgrade. 
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