Condensate Recirculation
At the end of a steam power cycle, the steam is condensed to water. A condensate pump moves the water through LP heaters back towards another pass-through deaerator and boiler. All centrifugal pumps have a minimum flow rate through to pump to avoid overheating and cavitation. A condensate pump recirculation water valve controls the bypass flow from the pump outlet back to the condenser, preventing overheating and cavitation in the pump. This water valve must have an anti-cavitation trim.