Brochure

The deaerator serves many functions in a power
plant. Its primary function is to minimize entrained
oxygen in the feedwater. It must also provide
additional heat to the feedwater owing to the
boiler and store an adequate amount of feedwater to
provide sufcient suction head to the feedpump. This
is a challenging application and requires a valve that
can handle cavitating, low ow rates during startup
and allows for high capacity at low pressure drops
during normal operation.
In order for the deaerator to serve all of its functions
properly and efciently, consistent deaerator level
must be maintained.
Fisher deaerator level control valves maintain a
consistent deaerator level while handling extreme
ow rates and minimizing the effects of cavitation.
Fisher
®
Power Solutions | 7
Deaerator Level Control Valve
PRODUCT FEATURES
nAdvanced sealing technology provides tight shutoff and maintains consistent deaerator level during startup.
n High turndown handles extreme flow rates.
n Anti-cavitation trim reduces noise and vibration for extended service life.
n Characterized cage provides low-ow cavitation protection during initial operation and necessary ow as
pressure rises.
nOptional trim allows passing of 19 mm (.75 inch) particulate.
n High thrust, low maintenance pneumatic actuator.