Brochure

Heater Drain System
HP/LP Feedwater Heater Normal Drain Valve
Proper functioning of the heater drain system is
critical to maintaining optimum heat rate and
protecting the turbine from possible water induction.
The feedwater heater normal drain valves must
provide stable feedwater heater level control.
The Fisher HP and LP feedwater heater normal
drain valves provide level control optimized to the
characteristics of each specic feedwater heater and
prevent the damaging effects caused by ashing.
HP/LP Feedwater Heater
Emergency Drain Valve
Feedwater heater emergency drain valves normally
operate closed, and tight valve shutoff is critical.
A leaking emergency drain can have a 2-5-plus
megawatt negative impact on plant output.
Fisher feedwater heater emergency drain valves
operate quickly and properly to maintain consistent
feedwater heater level when called upon and prevent
damage incurred by ashing.
PRODUCT FEATURES
n Body materials eliminate erosion caused by ashing.
n Linear valve trim optimized to each feedwater heater eliminates noise and cavitation.
n Advanced sealing technology provides Class V shutoff and extends service life.
n Precise level control without oscillation.
n Globe, angle, and rotary designs available.
Fisher
®
Power Solutions | 17