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 sufcient 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 efciently, 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
nAdvanced 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.
nOptional trim allows passing of 19 mm (.75 inch) particulate.
n High thrust, low maintenance pneumatic actuator.